[systemd-devel] [PATCH] [RFC] systemd-bootchart: merge bootchart.
Auke Kok
auke-jan.h.kok at intel.com
Wed Oct 17 16:01:12 PDT 2012
<< do not merge this patch - it has not been fully tested yet >>
This is an initial RFC patch merging bootchart almost verbatim
into systemd.
Bootchart is renamed to 'systemd-bootchart' and installed as
$libdir/systemd/systemd-bootchart. The configuration file
will reside in $sysconfdir/systemd/bootchart.conf.
The code is almost unchanged. Graphing routines and logging code
do not use or leverage any additional systemd data that may be
available. This work is planned after the initial merge.
The goal of this patch is to get comments on the overall integration
style. Man pages were added to cover the various ways of starting
bootchart:
- as replacement init process
- as standalone program
- not implemented yet: as early process by systemd
- not implemented yet: as regular systemd service unit
Signed-off-by: Auke Kok <auke-jan.h.kok at intel.com>
---
Makefile.am | 16 +
configure.ac | 9 +
man/bootchart.conf.xml | 158 ++++++
man/systemd-bootchart.xml | 117 +++++
src/bootchart/README | 83 ++++
src/bootchart/bootchart.c | 352 +++++++++++++
src/bootchart/bootchart.conf | 20 +
src/bootchart/bootchart.h | 117 +++++
src/bootchart/log.c | 420 ++++++++++++++++
src/bootchart/svg.c | 1120 ++++++++++++++++++++++++++++++++++++++++++
10 files changed, 2412 insertions(+)
create mode 100644 man/bootchart.conf.xml
create mode 100644 man/systemd-bootchart.xml
create mode 100644 src/bootchart/README
create mode 100644 src/bootchart/bootchart.c
create mode 100644 src/bootchart/bootchart.conf
create mode 100644 src/bootchart/bootchart.h
create mode 100644 src/bootchart/log.c
create mode 100644 src/bootchart/svg.c
diff --git a/Makefile.am b/Makefile.am
index 8e88c42..03dc535 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2882,6 +2882,22 @@ EXTRA_DIST += \
units/systemd-readahead-done.service.in
# ------------------------------------------------------------------------------
+if ENABLE_BOOTCHART
+systemd_bootchart_SOURCES = \
+ src/bootchart/bootchart.c \
+ src/bootchart/bootchart.h \
+ src/bootchart/log.c \
+ src/bootchart/svg.c
+
+MANPAGES += \
+ man/systemd-bootchart.1
+ man/bootchart.conf.5
+
+rootlibexec_PROGRAMS += \
+ systemd-bootchart
+endif
+
+# ------------------------------------------------------------------------------
if ENABLE_QUOTACHECK
rootlibexec_PROGRAMS += \
systemd-quotacheck
diff --git a/configure.ac b/configure.ac
index 62e83be..75fcd19 100644
--- a/configure.ac
+++ b/configure.ac
@@ -509,6 +509,14 @@ fi
AM_CONDITIONAL(ENABLE_READAHEAD, [test "$have_readahead" = "yes"])
# ------------------------------------------------------------------------------
+have_bootchart=no
+AC_ARG_ENABLE(bootchart, AS_HELP_STRING([--disable-bootchart], [disable bootchart tool]))
+if test "x$enable_bootchart" != "xno"; then
+ have_bootchart=yes
+fi
+AM_CONDITIONAL(ENABLE_BOOTCHART, [test "$have_bootchart" = "yes"])
+
+# ------------------------------------------------------------------------------
have_quotacheck=no
AC_ARG_ENABLE(quotacheck, AS_HELP_STRING([--disable-quotacheck], [disable quotacheck tools]))
if test "x$enable_quotacheck" != "xno"; then
@@ -868,6 +876,7 @@ AC_MSG_RESULT([
binfmt: ${have_binfmt}
vconsole: ${have_vconsole}
readahead: ${have_readahead}
+ bootchart: ${have_bootchart}
quotacheck: ${have_quotacheck}
randomseed: ${have_randomseed}
logind: ${have_logind}
diff --git a/man/bootchart.conf.xml b/man/bootchart.conf.xml
new file mode 100644
index 0000000..f8fcfe0
--- /dev/null
+++ b/man/bootchart.conf.xml
@@ -0,0 +1,158 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Intel Corporation
+
+ Authors:
+ Auke Kok <auke-jan.h.kok at intel.com>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="bootchart.conf">
+ <refentryinfo>
+ <title>bootchart.conf</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Auke</firstname>
+ <surname>Kok</surname>
+ <email>auke-jan.h.kok at intel.com</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>bootchart.conf</refentrytitle>
+ <manvolnum>5</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>bootchart.conf</refname>
+ <refpurpose>Boot performance analysis graphing tool configuration file</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <para><filename>/etc/systemd/bootchart.conf</filename></para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>When starting, systemd-bootchart will read the
+ configuration file <filename>bootchart.conf</filename>.
+ This configuration file determines logging parameters and
+ graph output.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <variablelist class='bootchart-directives'>
+
+ <varlistentry>
+ <term><varname>samples=500</varname></term>
+ <listitem><para>Configure the amount of samples to
+ record total before bootchart exits. Each sample will
+ record at intervals defined by freq=.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>freq=25</varname></term>
+ <listitem><para>Configure the sample log frequency.
+ This can be a fractional number, but must be larger than
+ 0.0. Most systems can cope with values under 25-50 without
+ impacting boot time severely.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>rel=0</varname></term>
+ <listitem><para>Configures whether the left axis of the
+ output graph equals time=0.0 (CLOCK_MONOTONIC start). This
+ is useful for using bootchart at post-boot time to profile
+ an already booted system, otherwise the graph would become
+ extremely large. If set to a non-zero value, the horizontal
+ axis starts at the first recorded sample instead of time=0.0.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>filter=0</varname></term>
+ <listitem><para>Configures whether the resulting graph
+ should omit tasks that did not contribute significantly
+ to the boot. Processes that are too short-lived (only
+ seen in one sample) or that do not consume any significant
+ CPU time (less than 0.001sec) will not be displayed in
+ the output graph.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>output=[path]</varname></term>
+ <listitem><para>Configures the output folder for writing
+ the graphs. By default, bootchart writes the graphs to
+ <filename>/var/log</filename>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>init=[path]</varname></term>
+ <listitem><para>Configures bootchart to run a non-standard
+ binary instead of <filename>/sbin/init</filename>. This
+ option is only relevant if bootchart was invoked from the
+ kernel command line with
+ init=/usr/lib/systemd/systemd-bootchart.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>pss=0</varname></term>
+ <listitem><para>If set to 1, enables logging and graphing
+ of processes PSS memory consumption.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>entropy=0</varname></term>
+ <listitem><para>If set to 1, enables logging and graphing
+ of the kernel random entropy pool size.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>scale_x=100</varname></term>
+ <listitem><para>Horizontal scaling factor for all variable
+ graph components.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>scale_y=20</varname></term>
+ <listitem><para>Vertical scaling factor for all variable
+ graph components.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd-bootchart</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/man/systemd-bootchart.xml b/man/systemd-bootchart.xml
new file mode 100644
index 0000000..4d53824
--- /dev/null
+++ b/man/systemd-bootchart.xml
@@ -0,0 +1,117 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Intel Corporation
+
+ Authors:
+ Auke Kok <auke-jan.h.kok at intel.com>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-bootchart">
+ <refentryinfo>
+ <title>systemd-bootchart</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Auke</firstname>
+ <surname>Kok</surname>
+ <email>auke-jan.h.kok at intel.com</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>systemd-bootchart</refentrytitle>
+ <manvolnum>1</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-bootchart</refname>
+ <refpurpose>Boot performance analysis graphing tool</refpurpose>
+ </refnamediv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>Systemd-bootchart is an boot time analysis tool. It represents
+ various aspects of the system as graph elements. These graph
+ elements allow the user to determine resource usage, efficiency
+ and performance issues.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Invocation</title>
+
+ <para>systemd-bootchart can be invoked in several different ways:</para>
+
+ <variablelist class='bootchart-invocation'>
+
+ <varlistentry>
+ <title>Kernel invocation</title>
+ <listitem><para>The kernel can invoke systemd-bootchart
+ instead of the init process. In itself, systemd-bootchart
+ will invoke <filename>/sbin/init</filename> if invoked in
+ this matter.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <title>Started as a standalone program</title>
+ <listitem><para>One can execute systemd-bootchart as
+ normal application from the commandline. In this mode
+ it is highly recommended to pass the "-r" flag in order
+ to not graph the time elapsed since boot and before
+ systemd-bootchart was started, as it may result in
+ extremely large graphs.
+ </para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para>Please read systemd-bootchart --help or the bootchart.conf manual
+ page for information about the various options that influence how
+ systemd-bootchart operates.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Output</title>
+
+ <para>Systemd-bootchart generates SVG graphs. In order to render these
+ on a graphica display any SVG capable viewer can be used. It should be
+ noted that the SVG render engines in most browsers (including Chrome
+ and Firefox) are many times faster than dedicated graphical applications
+ like Gimp and Inkscape. Just point your browser at "file:///var/log"!
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>bootchart.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/bootchart/README b/src/bootchart/README
new file mode 100644
index 0000000..a209caf
--- /dev/null
+++ b/src/bootchart/README
@@ -0,0 +1,83 @@
+
+Bootchart - a 'startup' graphing tool
+
+--
+
+Bootchart is a tool, usually run at system startup, that collects and graphs
+the CPU and disk load of the system as it works. The output of bootchart is
+an SVG graph. Normally, bootchart is invoked as `bootchartd` by the kernel
+by passing "init=/sbin/bootchartd" to the kernel. Bootchart will then fork
+init off to resume normal system startup, while monitoring and logging
+startup information in the background.
+
+After collecting a certain amount of data (usually 15-30 seconds) the logging
+stops and a graph is generated from the logged information. This graph
+contains vital clues to which resources are being used, in which order, and
+where possible problems exist in the startup sequence of the system.
+
+Of course, bootchart can also be used at any moment in time to collect and
+graph some data for an amount of time. Bootchart does not even require root
+privileges to do so, and will happily run as a normal user. Bootchart graphs
+are by default written time-stamped in /var/log.
+
+--
+
+This version of bootchart was implemented from scratch and inspired by former
+incantations of bootchart:
+
+- The original bash/shell code implemented bootchart. This version logged all
+data into a compressed tarball for later processing, and did not create a graph
+on it's own.
+
+- The C-code implementation found in Ubuntu. This version replaced above shell
+code version with a faster and efficient data logger, but still did not graph
+code itself.
+
+- the original Java-based bootchart, the original graphing program that created
+a bootchart graph from logged data.
+
+- the pybootchartgui.py program, which created a graph based on the data logged
+by either standalone data logger.
+
+The version you are looking at combines these 2 parts into a single program,
+which makes running it and creating graphs a bit more efficient and simple.
+You can now run a single program at startup instead of 2. There are no timing
+problems (the graphing stage will never run if the logging stage didn't
+finish). The logged data isn't being written to disc first, then read again.
+Also, the data kept in memory is reduced to the absolute minimum needed to
+keep memory use low.
+
+--
+
+Requirements: glibc. Your kernel must have procfs support and several
+proc output options enabled:
+ CONFIG_PROC_FS
+ CONFIG_SCHEDSTATS
+ CONFIG_SCHED_DEBUG
+at a minimum. bootchartd itself does not require any graphics library
+to generate the SVG output file.
+
+--
+
+Configuration: please see bootchartd --help, as well as /etc/bootchartd.conf
+and/or /usr/share/doc/bootchart/bootchartd.conf.example for a list of
+configurable options.
+
+--
+
+Many thanks to those who contributed ideas and code:
+ - Ziga Mahkovec - Original bootchart author
+ - Anders Norgaard - PyBootchartgui
+ - Michael Meeks - bootchart2
+ - Scott James Remnant - Ubuntu C-based logger
+ - Arjan van der Ven - for the idea to merge bootgraph.pl functionality
+
+--
+
+For bugs, please contact the author or current maintainer:
+Auke Kok <auke-jan.h.kok at intel.com>
+
+--
+
+Download bootchart releases here: http://foo-projects.org/~sofar/bootchart/
+Source code is hosted here: git://github.com/sofar/bootchart
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
new file mode 100644
index 0000000..2eeb37a
--- /dev/null
+++ b/src/bootchart/bootchart.c
@@ -0,0 +1,352 @@
+/*
+ * bootchart.c
+ *
+ * Copyright (C) 2009-2012 Intel Coproration
+ *
+ * Authors:
+ * Auke Kok <auke-jan.h.kok at intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <getopt.h>
+#include <limits.h>
+#include <errno.h>
+
+
+#include "bootchart.h"
+
+double graph_start;
+double log_start;
+double sampletime[MAXSAMPLES];
+struct ps_struct *ps_first;
+struct block_stat_struct blockstat[MAXSAMPLES];
+int entropy_avail[MAXSAMPLES];
+struct cpu_stat_struct cpustat[MAXCPUS];
+int pscount;
+int cpus;
+double interval;
+FILE *of;
+int overrun = 0;
+static int exiting = 0;
+
+/* graph defaults */
+int entropy = 0;
+int initcall = 1;
+int relative;
+int filter = 1;
+int pss = 0;
+int samples;
+int len = 500; /* we record len+1 (1 start sample) */
+double hz = 25.0; /* 20 seconds log time */
+double scale_x = 100.0; /* 100px = 1sec */
+double scale_y = 20.0; /* 16px = 1 process bar */
+
+char init_path[PATH_MAX] = "/sbin/init";
+char output_path[PATH_MAX] = "/var/log";
+
+static struct rlimit rlim;
+
+static void signal_handler(int sig)
+{
+ if (sig++)
+ sig--;
+ exiting = 1;
+}
+
+
+int main(int argc, char *argv[])
+{
+ struct sigaction sig;
+ struct ps_struct *ps;
+ char output_file[PATH_MAX];
+ char datestr[200];
+ time_t t;
+ FILE *f;
+ int gind;
+ int i;
+
+ memset(&t, 0, sizeof(time_t));
+
+ rlim.rlim_cur = 4096;
+ rlim.rlim_max = 4096;
+ (void) setrlimit(RLIMIT_NOFILE, &rlim);
+
+ f = fopen("/etc/systemd/bootchart.conf", "r");
+ if (f) {
+ char buf[256];
+ char *key;
+ char *val;
+
+ while (fgets(buf, 80, f) != NULL) {
+ char *c;
+
+ c = strchr(buf, '\n');
+ if (c) *c = 0; /* remove trailing \n */
+
+ if (buf[0] == '#')
+ continue; /* comment line */
+
+ key = strtok(buf, "=");
+ if (!key)
+ continue;
+ val = strtok(NULL, "=");
+ if (!val)
+ continue;
+
+ // todo: filter leading/trailing whitespace
+
+ if (!strcmp(key, "samples"))
+ len = atoi(val);
+ if (!strcmp(key, "freq"))
+ hz = atof(val);
+ if (!strcmp(key, "rel"))
+ relative = atoi(val);
+ if (!strcmp(key, "filter"))
+ filter = atoi(val);
+ if (!strcmp(key, "pss"))
+ pss = atoi(val);
+ if (!strcmp(key, "output"))
+ strncpy(output_path, val, PATH_MAX - 1);
+ if (!strcmp(key, "init"))
+ strncpy(init_path, val, PATH_MAX - 1);
+ if (!strcmp(key, "scale_x"))
+ scale_x = atof(val);
+ if (!strcmp(key, "scale_y"))
+ scale_y = atof(val);
+ if (!strcmp(key, "entropy"))
+ entropy = atoi(val);
+ }
+ fclose(f);
+ }
+
+ while (1) {
+ static struct option opts[] = {
+ {"rel", 0, NULL, 'r'},
+ {"freq", 1, NULL, 'f'},
+ {"samples", 1, NULL, 'n'},
+ {"pss", 0, NULL, 'p'},
+ {"output", 1, NULL, 'o'},
+ {"init", 1, NULL, 'i'},
+ {"filter", 0, NULL, 'F'},
+ {"help", 0, NULL, 'h'},
+ {"scale-x", 1, NULL, 'x'},
+ {"scale-y", 1, NULL, 'y'},
+ {"entropy", 0, NULL, 'e'},
+ {NULL, 0, NULL, 0}
+ };
+
+ gind = 0;
+
+ i = getopt_long(argc, argv, "erpf:n:o:i:Fhx:y:", opts, &gind);
+ if (i == -1)
+ break;
+ switch (i) {
+ case 'r':
+ relative = 1;
+ break;
+ case 'f':
+ hz = atof(optarg);
+ break;
+ case 'F':
+ filter = 0;
+ break;
+ case 'n':
+ len = atoi(optarg);
+ break;
+ case 'o':
+ strncpy(output_path, optarg, PATH_MAX - 1);
+ break;
+ case 'i':
+ strncpy(init_path, optarg, PATH_MAX - 1);
+ break;
+ case 'p':
+ pss = 1;
+ break;
+ case 'x':
+ scale_x = atof(optarg);
+ break;
+ case 'y':
+ scale_y = atof(optarg);
+ break;
+ case 'e':
+ entropy = 1;
+ break;
+ case 'h':
+ fprintf(stderr, "Usage: %s [OPTIONS]\n", argv[0]);
+ fprintf(stderr, " --rel, -r Record time relative to recording\n");
+ fprintf(stderr, " --freq, -f N Sample frequency [%f]\n", hz);
+ fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", len);
+ fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", scale_x);
+ fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", scale_y);
+ fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
+ fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
+ fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", output_path);
+ fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", init_path);
+ fprintf(stderr, " --filter, -F Disable filtering of processes from the graph\n");
+ fprintf(stderr, " that are of less importance or short-lived\n");
+ fprintf(stderr, " --help, -h Display this message\n");
+ fprintf(stderr, "See the installed README and bootchartd.conf.example for more information.\n");
+ exit (EXIT_SUCCESS);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (len > MAXSAMPLES) {
+ fprintf(stderr, "Error: samples exceeds maximum\n");
+ exit(EXIT_FAILURE);
+ }
+
+ if (hz <= 0.0) {
+ fprintf(stderr, "Error: Frequency needs to be > 0\n");
+ exit(EXIT_FAILURE);
+ }
+
+ /*
+ * If the kernel executed us through init=/sbin/bootchartd, then
+ * fork:
+ * - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
+ * - child logs data
+ */
+ if (getpid() == 1) {
+ if (fork()) {
+ /* parent */
+ execl(init_path, init_path, NULL);
+ }
+ }
+
+ /* start with empty ps LL */
+ ps_first = malloc(sizeof(struct ps_struct));
+ if (!ps_first) {
+ perror("malloc(ps_struct)");
+ exit(EXIT_FAILURE);
+ }
+ memset(ps_first, 0, sizeof(struct ps_struct));
+
+ /* handle TERM/INT nicely */
+ memset(&sig, 0, sizeof(struct sigaction));
+ sig.sa_handler = signal_handler;
+ sigaction(SIGHUP, &sig, NULL);
+
+ interval = (1.0 / hz) * 1000000000.0;
+
+ log_uptime();
+
+ /* main program loop */
+ while (!exiting) {
+ int res;
+ double sample_stop;
+ struct timespec req;
+ time_t newint_s;
+ long newint_ns;
+ double elapsed;
+ double timeleft;
+
+ sampletime[samples] = gettime_ns();
+
+ /* wait for /proc to become available, discarding samples */
+ if (!(graph_start > 0.0))
+ log_uptime();
+ else
+ log_sample(samples);
+
+ sample_stop = gettime_ns();
+
+ elapsed = (sample_stop - sampletime[samples]) * 1000000000.0;
+ timeleft = interval - elapsed;
+
+ newint_s = (time_t)(timeleft / 1000000000.0);
+ newint_ns = (long)(timeleft - (newint_s * 1000000000.0));
+
+ /*
+ * check if we have not consumed our entire timeslice. If we
+ * do, don't sleep and take a new sample right away.
+ * we'll lose all the missed samples and overrun our total
+ * time
+ */
+ if ((newint_ns > 0) || (newint_s > 0)) {
+ req.tv_sec = newint_s;
+ req.tv_nsec = newint_ns;
+
+ res = nanosleep(&req, NULL);
+ if (res) {
+ if (errno == EINTR) {
+ /* caught signal, probably HUP! */
+ break;
+ }
+ perror("nanosleep()");
+ exit (EXIT_FAILURE);
+ }
+ } else {
+ overrun++;
+ /* calculate how many samples we lost and scrap them */
+ len = len + ((int)(newint_ns / interval));
+ }
+
+ samples++;
+
+ if (samples > len)
+ break;
+
+ }
+
+ /* do some cleanup, close fd's */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (ps->schedstat)
+ close(ps->schedstat);
+ if (ps->sched)
+ close(ps->sched);
+ if (ps->smaps)
+ fclose(ps->smaps);
+ }
+ closedir(proc);
+
+ t = time(NULL);
+ strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", output_path, datestr);
+
+ of = fopen(output_file, "w");
+ if (!of) {
+ perror("open output_file");
+ exit (EXIT_FAILURE);
+ }
+
+ svg_do();
+
+ fprintf(stderr, "bootchartd: Wrote %s\n", output_file);
+ fclose(of);
+
+ /* nitpic cleanups */
+ ps = ps_first;
+ while (ps->next_ps) {
+ struct ps_struct *old = ps;
+ ps = ps->next_ps;
+ free(old->sample);
+ free(old);
+ }
+ free(ps->sample);
+ free(ps);
+
+ /* don't complain when overrun once, happens most commonly on 1st sample */
+ if (overrun > 1)
+ fprintf(stderr, "bootchartd: Warning: sample time overrun %i times\n", overrun);
+
+ return 0;
+}
diff --git a/src/bootchart/bootchart.conf b/src/bootchart/bootchart.conf
new file mode 100644
index 0000000..06c1b47
--- /dev/null
+++ b/src/bootchart/bootchart.conf
@@ -0,0 +1,20 @@
+
+# This file is part of systemd.
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# See systemd-bootchart.conf(5) for details
+
+#samples=500
+#freq=25
+#rel=0
+#filter=1
+#output=<folder name, defaults to /var/log>
+#init=/path/to/init-binary
+#pss=0
+#entropy=0
+#scale_x=100
+#scale_y=20
diff --git a/src/bootchart/bootchart.h b/src/bootchart/bootchart.h
new file mode 100644
index 0000000..0d8bed1
--- /dev/null
+++ b/src/bootchart/bootchart.h
@@ -0,0 +1,117 @@
+/*
+ * bootchart.h
+ *
+ * Copyright (C) 2009-2012 Intel Coproration
+ *
+ * Authors:
+ * Auke Kok <auke-jan.h.kok at intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <dirent.h>
+
+#define MAXCPUS 16
+#define MAXPIDS 65535
+#define MAXSAMPLES 8192
+
+
+struct block_stat_struct {
+ /* /proc/vmstat pgpgin & pgpgout */
+ int bi;
+ int bo;
+};
+
+struct cpu_stat_sample_struct {
+ /* /proc/schedstat fields 10 & 11 (after name) */
+ double runtime;
+ double waittime;
+};
+
+struct cpu_stat_struct {
+ /* per cpu array */
+ struct cpu_stat_sample_struct sample[MAXSAMPLES];
+};
+
+/* per process, per sample data we will log */
+struct ps_sched_struct {
+ /* /proc/<n>/schedstat fields 1 & 2 */
+ double runtime;
+ double waittime;
+ int pss;
+};
+
+/* process info */
+struct ps_struct {
+ struct ps_struct *next_ps; /* SLL pointer */
+ struct ps_struct *parent; /* ppid ref */
+ struct ps_struct *children; /* children */
+ struct ps_struct *next; /* siblings */
+
+ /* must match - otherwise it's a new process with same PID */
+ char name[16];
+ int pid;
+ int ppid;
+
+ /* cache fd's */
+ int sched;
+ int schedstat;
+ FILE *smaps;
+
+ /* index to first/last seen timestamps */
+ int first;
+ int last;
+
+ /* records actual start time, may be way before bootchart runs */
+ double starttime;
+
+ /* record human readable total cpu time */
+ double total;
+
+ /* largest PSS size found */
+ int pss_max;
+
+ /* for drawing connection lines later */
+ double pos_x;
+ double pos_y;
+
+ struct ps_sched_struct *sample;
+};
+
+extern int entropy_avail[];
+
+extern double graph_start;
+extern double log_start;
+extern double sampletime[];
+extern struct ps_struct *ps_first;
+extern struct block_stat_struct blockstat[];
+extern struct cpu_stat_struct cpustat[];
+extern int pscount;
+extern int relative;
+extern int filter;
+extern int pss;
+extern int entropy;
+extern int initcall;
+extern int samples;
+extern int cpus;
+extern int len;
+extern double hz;
+extern double scale_x;
+extern double scale_y;
+extern int overrun;
+extern double interval;
+
+extern char output_path[PATH_MAX];
+extern char init_path[PATH_MAX];
+
+extern FILE *of;
+extern DIR *proc;
+
+extern double gettime_ns(void);
+extern void log_uptime(void);
+extern void log_sample(int sample);
+
+extern void svg_do(void);
diff --git a/src/bootchart/log.c b/src/bootchart/log.c
new file mode 100644
index 0000000..89c7b35
--- /dev/null
+++ b/src/bootchart/log.c
@@ -0,0 +1,420 @@
+/*
+ * log.c
+ *
+ * Copyright (C) 2009-2012 Intel Coproration
+ *
+ * Authors:
+ * Auke Kok <auke-jan.h.kok at intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#define _GNU_SOURCE 1
+#include <unistd.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <time.h>
+
+
+#include "bootchart.h"
+
+/*
+ * Alloc a static 4k buffer for stdio - primarily used to increase
+ * PSS buffering from the default 1k stdin buffer to reduce
+ * read() overhead.
+ */
+static char smaps_buf[4096];
+DIR *proc;
+
+
+double gettime_ns(void)
+{
+ struct timespec now;
+
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ return (now.tv_sec + (now.tv_nsec / 1000000000.0));
+}
+
+
+void log_uptime(void)
+{
+ FILE *f;
+ char str[32];
+ double uptime;
+
+ f = fopen("/proc/uptime", "r");
+ if (!f)
+ return;
+ if (!fscanf(f, "%s %*s", str)) {
+ fclose(f);
+ return;
+ }
+ fclose(f);
+ uptime = strtod(str, NULL);
+
+ log_start = gettime_ns();
+
+ /* start graph at kernel boot time */
+ if (relative)
+ graph_start = log_start;
+ else
+ graph_start = log_start - uptime;
+}
+
+
+static char *bufgetline(char *buf)
+{
+ char *c;
+
+ if (!buf)
+ return NULL;
+
+ c = strchr(buf, '\n');
+ if (c)
+ c++;
+ return c;
+}
+
+
+void log_sample(int sample)
+{
+ static int vmstat;
+ static int schedstat;
+ FILE *st;
+ char buf[4095];
+ char key[256];
+ char val[256];
+ char rt[256];
+ char wt[256];
+ char *m;
+ int c;
+ int p;
+ int mod;
+ static int e_fd;
+ ssize_t s;
+ ssize_t n;
+ struct dirent *ent;
+
+ if (!vmstat) {
+ /* block stuff */
+ vmstat = open("/proc/vmstat", O_RDONLY);
+ if (vmstat == -1) {
+ perror("open /proc/vmstat");
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ n = pread(vmstat, buf, sizeof(buf) - 1, 0);
+ if (n <= 0) {
+ close(vmstat);
+ return;
+ }
+ buf[n] = '\0';
+
+ m = buf;
+ while (m) {
+ if (sscanf(m, "%s %s", key, val) < 2)
+ goto vmstat_next;
+ if (!strcmp(key, "pgpgin"))
+ blockstat[sample].bi = atoi(val);
+ if (!strcmp(key, "pgpgout")) {
+ blockstat[sample].bo = atoi(val);
+ break;
+ }
+vmstat_next:
+ m = bufgetline(m);
+ if (!m)
+ break;
+ }
+
+ if (!schedstat) {
+ /* overall CPU utilization */
+ schedstat = open("/proc/schedstat", O_RDONLY);
+ if (schedstat == -1) {
+ perror("open /proc/schedstat");
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ n = pread(schedstat, buf, sizeof(buf) - 1, 0);
+ if (n <= 0) {
+ close(schedstat);
+ return;
+ }
+ buf[n] = '\0';
+
+ m = buf;
+ while (m) {
+ if (sscanf(m, "%s %*s %*s %*s %*s %*s %*s %s %s", key, rt, wt) < 3)
+ goto schedstat_next;
+
+ if (strstr(key, "cpu")) {
+ c = atoi((const char*)(key+3));
+ if (c > MAXCPUS)
+ /* Oops, we only have room for MAXCPUS data */
+ break;
+ cpustat[c].sample[sample].runtime = atoll(rt);
+ cpustat[c].sample[sample].waittime = atoll(wt);
+
+ if (c == cpus)
+ cpus = c + 1;
+ }
+schedstat_next:
+ m = bufgetline(m);
+ if (!m)
+ break;
+ }
+
+ if (entropy) {
+ if (!e_fd) {
+ e_fd = open("/proc/sys/kernel/random/entropy_avail", O_RDONLY);
+ }
+
+ if (e_fd) {
+ n = pread(e_fd, buf, sizeof(buf) - 1, 0);
+ if (n > 0)
+ entropy_avail[sample] = atoi(buf);
+ }
+ }
+
+ /* all the per-process stuff goes here */
+ if (!proc) {
+ /* find all processes */
+ proc = opendir("/proc");
+ if (!proc)
+ return;
+ } else {
+ rewinddir(proc);
+ }
+
+ while ((ent = readdir(proc)) != NULL) {
+ char filename[PATH_MAX];
+ int pid;
+ struct ps_struct *ps;
+
+ if ((ent->d_name[0] < '0') || (ent->d_name[0] > '9'))
+ continue;
+
+ pid = atoi(ent->d_name);
+
+ if (pid >= MAXPIDS)
+ continue;
+
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (ps->pid == pid)
+ break;
+ }
+
+ /* end of our LL? then append a new record */
+ if (ps->pid != pid) {
+ char t[32];
+ struct ps_struct *parent;
+
+ ps->next_ps = malloc(sizeof(struct ps_struct));
+ if (!ps->next_ps) {
+ perror("malloc(ps_struct)");
+ exit (EXIT_FAILURE);
+ }
+ memset(ps->next_ps, 0, sizeof(struct ps_struct));
+ ps = ps->next_ps;
+ ps->pid = pid;
+
+ ps->sample = malloc(sizeof(struct ps_sched_struct) * (len + 1));
+ if (!ps->sample) {
+ perror("malloc(ps_struct)");
+ exit (EXIT_FAILURE);
+ }
+ memset(ps->sample, 0, sizeof(struct ps_sched_struct) * (len + 1));
+
+ pscount++;
+
+ /* mark our first sample */
+ ps->first = sample;
+
+ /* get name, start time */
+ if (!ps->sched) {
+ sprintf(filename, "/proc/%d/sched", pid);
+ ps->sched = open(filename, O_RDONLY);
+ if (ps->sched == -1)
+ continue;
+ }
+
+ s = pread(ps->sched, buf, sizeof(buf) - 1, 0);
+ if (s <= 0) {
+ close(ps->sched);
+ continue;
+ }
+
+ if (!sscanf(buf, "%s %*s %*s", key))
+ continue;
+
+ strncpy(ps->name, key, 16);
+ /* discard line 2 */
+ m = bufgetline(buf);
+ if (!m)
+ continue;
+
+ m = bufgetline(m);
+ if (!m)
+ continue;
+
+ if (!sscanf(m, "%*s %*s %s", t))
+ continue;
+
+ ps->starttime = strtod(t, NULL) / 1000.0;
+
+ /* ppid */
+ sprintf(filename, "/proc/%d/stat", pid);
+ st = fopen(filename, "r");
+ if (!st)
+ continue;
+ if (!fscanf(st, "%*s %*s %*s %i", &p)) {
+ fclose(st);
+ continue;
+ }
+ fclose(st);
+ ps->ppid = p;
+
+ /*
+ * setup child pointers
+ *
+ * these are used to paint the tree coherently later
+ * each parent has a LL of children, and a LL of siblings
+ */
+ if (pid == 1)
+ continue; /* nothing to do for init atm */
+
+ /* kthreadd has ppid=0, which breaks our tree ordering */
+ if (ps->ppid == 0)
+ ps->ppid = 1;
+
+ parent = ps_first;
+ while ((parent->next_ps && parent->pid != ps->ppid))
+ parent = parent->next_ps;
+
+ if ((!parent) || (parent->pid != ps->ppid)) {
+ /* orphan */
+ ps->ppid = 1;
+ parent = ps_first->next_ps;
+ }
+
+ ps->parent = parent;
+
+ if (!parent->children) {
+ /* it's the first child */
+ parent->children = ps;
+ } else {
+ /* walk all children and append */
+ struct ps_struct *children;
+ children = parent->children;
+ while (children->next)
+ children = children->next;
+ children->next = ps;
+ }
+ }
+
+ /* else -> found pid, append data in ps */
+
+ /* below here is all continuous logging parts - we get here on every
+ * iteration */
+
+ /* rt, wt */
+ if (!ps->schedstat) {
+ sprintf(filename, "/proc/%d/schedstat", pid);
+ ps->schedstat = open(filename, O_RDONLY);
+ if (ps->schedstat == -1)
+ continue;
+ }
+
+ if (pread(ps->schedstat, buf, sizeof(buf) - 1, 0) <= 0) {
+ /* clean up our file descriptors - assume that the process exited */
+ close(ps->schedstat);
+ if (ps->sched)
+ close(ps->sched);
+ //if (ps->smaps)
+ // fclose(ps->smaps);
+ continue;
+ }
+ if (!sscanf(buf, "%s %s %*s", rt, wt))
+ continue;
+
+ ps->last = sample;
+ ps->sample[sample].runtime = atoll(rt);
+ ps->sample[sample].waittime = atoll(wt);
+
+ ps->total = (ps->sample[ps->last].runtime
+ - ps->sample[ps->first].runtime)
+ / 1000000000.0;
+
+ if (!pss)
+ goto catch_rename;
+ /* Pss */
+ if (!ps->smaps) {
+ sprintf(filename, "/proc/%d/smaps", pid);
+ ps->smaps = fopen(filename, "r");
+ setvbuf(ps->smaps, smaps_buf, _IOFBF, sizeof(smaps_buf));
+ if (!ps->smaps)
+ continue;
+ } else {
+ rewind(ps->smaps);
+ }
+
+ while (1) {
+ int pss_kb;
+
+ /* skip one line, this contains the object mapped */
+ if (fgets(buf, sizeof(buf), ps->smaps) == NULL)
+ break;
+ /* then there's a 28 char 14 line block */
+ if (fread(buf, 1, 28 * 14, ps->smaps) != 28 * 14)
+ break;
+
+ pss_kb = atoi(&buf[61]);
+ ps->sample[sample].pss += pss_kb;
+ }
+
+ if (ps->sample[sample].pss > ps->pss_max)
+ ps->pss_max = ps->sample[sample].pss;
+
+catch_rename:
+ /* catch process rename, try to randomize time */
+ mod = (hz < 4.0) ? 4.0 : (hz / 4.0);
+ if (((samples - ps->first) + pid) % (int)(mod) == 0) {
+
+ /* re-fetch name */
+ /* get name, start time */
+ if (!ps->sched) {
+ sprintf(filename, "/proc/%d/sched", pid);
+ ps->sched = open(filename, O_RDONLY);
+ if (ps->sched == -1)
+ continue;
+ }
+ if (pread(ps->sched, buf, sizeof(buf) - 1, 0) <= 0) {
+ /* clean up file descriptors */
+ close(ps->sched);
+ if (ps->schedstat)
+ close(ps->schedstat);
+ //if (ps->smaps)
+ // fclose(ps->smaps);
+ continue;
+ }
+
+ if (!sscanf(buf, "%s %*s %*s", key))
+ continue;
+
+ strncpy(ps->name, key, 16);
+ }
+ }
+}
diff --git a/src/bootchart/svg.c b/src/bootchart/svg.c
new file mode 100644
index 0000000..68ec539
--- /dev/null
+++ b/src/bootchart/svg.c
@@ -0,0 +1,1120 @@
+/*
+ * svg.c
+ *
+ * Copyright (C) 2009-2012 Intel Coproration
+ *
+ * Authors:
+ * Auke Kok <auke-jan.h.kok at intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <limits.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+#include "bootchart.h"
+
+
+#define time_to_graph(t) ((t) * scale_x)
+#define ps_to_graph(n) ((n) * scale_y)
+#define kb_to_graph(m) ((m) * scale_y * 0.0001)
+#define to_color(n) (192.0 - ((n) * 192.0))
+
+#define max(x, y) (((x) > (y)) ? (x) : (y))
+#define min(x, y) (((x) < (y)) ? (x) : (y))
+
+static char str[8092];
+
+#define svg(a...) do { snprintf(str, 8092, ## a); fputs(str, of); fflush(of); } while (0)
+
+static const char *colorwheel[12] = {
+ "rgb(255,32,32)", // red
+ "rgb(32,192,192)", // cyan
+ "rgb(255,128,32)", // orange
+ "rgb(128,32,192)", // blue-violet
+ "rgb(255,255,32)", // yellow
+ "rgb(192,32,128)", // red-violet
+ "rgb(32,255,32)", // green
+ "rgb(255,64,32)", // red-orange
+ "rgb(32,32,255)", // blue
+ "rgb(255,192,32)", // yellow-orange
+ "rgb(192,32,192)", // violet
+ "rgb(32,192,32)" // yellow-green
+};
+
+static double idletime = -1.0;
+static int pfiltered = 0;
+static int pcount = 0;
+static int kcount = 0;
+static float psize = 0;
+static float ksize = 0;
+static float esize = 0;
+
+
+static void svg_header(void)
+{
+ float w;
+ float h;
+
+ /* min width is about 1600px due to the label */
+ w = 150.0 + 10.0 + time_to_graph(sampletime[samples-1] - graph_start);
+ w = ((w < 1600.0) ? 1600.0 : w);
+
+ /* height is variable based on pss, psize, ksize */
+ h = 400.0 + (scale_y * 30.0) /* base graphs and title */
+ + (pss ? (100.0 * scale_y) + (scale_y * 7.0) : 0.0) /* pss estimate */
+ + psize + ksize + esize;
+
+ svg("<?xml version=\"1.0\" standalone=\"no\"?>\n");
+ svg("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" ");
+ svg("\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+
+ //svg("<g transform=\"translate(10,%d)\">\n", 1000 + 150 + (pcount * 20));
+ svg("<svg width=\"%.0fpx\" height=\"%.0fpx\" version=\"1.1\" ",
+ w, h);
+ svg("xmlns=\"http://www.w3.org/2000/svg\">\n\n");
+
+ /* write some basic info as a comment, including some help */
+ svg("<!-- This file is a bootchart SVG file. It is best rendered in a browser -->\n");
+ svg("<!-- such as Chrome/Chromium, firefox. Other applications that render -->\n");
+ svg("<!-- these files properly but much more slow are ImageMagick, gimp, -->\n");
+ svg("<!-- inkscape, etc.. To display the files on your system, just point -->\n");
+ svg("<!-- your browser to file:///var/log/ and click. This bootchart was -->\n\n");
+
+ svg("<!-- generated by bootchart version %s, running with options: -->\n", VERSION);
+ svg("<!-- hz=\"%f\" n=\"%d\" -->\n", hz, len);
+ svg("<!-- x=\"%f\" y=\"%f\" -->\n", scale_x, scale_y);
+ svg("<!-- rel=\"%d\" f=\"%d\" -->\n", relative, filter);
+ svg("<!-- p=\"%d\" e=\"%d\" -->\n", pss, entropy);
+ svg("<!-- o=\"%s\" i=\"%s\" -->\n\n", output_path, init_path);
+
+ /* style sheet */
+ svg("<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
+
+ svg(" rect { stroke-width: 1; }\n");
+ svg(" rect.cpu { fill: rgb(64,64,240); stroke-width: 0; fill-opacity: 0.7; }\n");
+ svg(" rect.wait { fill: rgb(240,240,0); stroke-width: 0; fill-opacity: 0.7; }\n");
+ svg(" rect.bi { fill: rgb(240,128,128); stroke-width: 0; fill-opacity: 0.7; }\n");
+ svg(" rect.bo { fill: rgb(192,64,64); stroke-width: 0; fill-opacity: 0.7; }\n");
+ svg(" rect.ps { fill: rgb(192,192,192); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");
+ svg(" rect.krnl { fill: rgb(240,240,0); stroke: rgb(128,128,128); fill-opacity: 0.7; }\n");
+ svg(" rect.box { fill: rgb(240,240,240); stroke: rgb(192,192,192); }\n");
+ svg(" rect.clrw { stroke-width: 0; fill-opacity: 0.7;}\n");
+ svg(" line { stroke: rgb(64,64,64); stroke-width: 1; }\n");
+ svg("// line.sec1 { }\n");
+ svg(" line.sec5 { stroke-width: 2; }\n");
+ svg(" line.sec01 { stroke: rgb(224,224,224); stroke-width: 1; }\n");
+ svg(" line.dot { stroke-dasharray: 2 4; }\n");
+ svg(" line.idle { stroke: rgb(64,64,64); stroke-dasharray: 10 6; stroke-opacity: 0.7; }\n");
+
+ svg(" .run { font-size: 8; font-style: italic; }\n");
+ svg(" text { font-family: Verdana, Helvetica; font-size: 10; }\n");
+ svg(" text.sec { font-size: 8; }\n");
+ svg(" text.t1 { font-size: 24; }\n");
+ svg(" text.t2 { font-size: 12; }\n");
+ svg(" text.idle { font-size: 18; }\n");
+
+ svg(" ]]>\n </style>\n</defs>\n\n");
+
+}
+
+
+static void svg_title(void)
+{
+ char cmdline[256] = "";
+ char filename[PATH_MAX];
+ char buf[256];
+ char rootbdev[16] = "Unknown";
+ char model[256] = "Unknown";
+ char date[256] = "Unknown";
+ char cpu[256] = "Unknown";
+ char build[256] = "Unknown";
+ char *c;
+ FILE *f;
+ time_t t;
+ struct utsname uts;
+
+ /* grab /proc/cmdline */
+ f = fopen("/proc/cmdline", "r");
+ if (f) {
+ if (!fgets(cmdline, 255, f))
+ sprintf(cmdline, "Unknown");
+ fclose(f);
+ }
+
+ /* extract root fs so we can find disk model name in sysfs */
+ c = strstr(cmdline, "root=/dev/");
+ if (c) {
+ strncpy(rootbdev, &c[10], 3);
+ rootbdev[3] = '\0';
+ }
+ sprintf(filename, "/sys/block/%s/device/model", rootbdev);
+ f = fopen(filename, "r");
+ if (f) {
+ if (!fgets(model, 255, f))
+ fprintf(stderr, "Error reading disk model for %s\n", rootbdev);
+ fclose(f);
+ }
+
+ /* various utsname parameters */
+ if (uname(&uts))
+ fprintf(stderr, "Error getting uname info\n");
+
+ /* date */
+ t = time(NULL);
+ strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %z", localtime(&t));
+
+ /* CPU type */
+ f = fopen("/proc/cpuinfo", "r");
+ if (f) {
+ while (fgets(buf, 255, f)) {
+ if (strstr(buf, "model name")) {
+ strncpy(cpu, &buf[13], 255);
+ break;
+ }
+ }
+ fclose(f);
+ }
+
+ /* Build - 1st line from /etc/system-release */
+ f = fopen("/etc/system-release", "r");
+ if (f) {
+ if (fgets(buf, 255, f))
+ strncpy(build, buf, 255);
+ fclose(f);
+ }
+
+ svg("<text class=\"t1\" x=\"0\" y=\"30\">Bootchart for %s - %s</text>\n",
+ uts.nodename, date);
+ svg("<text class=\"t2\" x=\"20\" y=\"50\">System: %s %s %s %s</text>\n",
+ uts.sysname, uts.release, uts.version, uts.machine);
+ svg("<text class=\"t2\" x=\"20\" y=\"65\">CPU: %s</text>\n",
+ cpu);
+ svg("<text class=\"t2\" x=\"20\" y=\"80\">Disk: %s</text>\n",
+ model);
+ svg("<text class=\"t2\" x=\"20\" y=\"95\">Boot options: %s</text>\n",
+ cmdline);
+ svg("<text class=\"t2\" x=\"20\" y=\"110\">Build: %s</text>\n",
+ build);
+ svg("<text class=\"t2\" x=\"20\" y=\"125\">Log start time: %.03fs</text>\n", log_start);
+ svg("<text class=\"t2\" x=\"20\" y=\"140\">Idle time: ");
+
+ if (idletime >= 0.0)
+ svg("%.03fs", idletime);
+ else
+ svg("Not detected");
+ svg("</text>\n");
+ svg("<text class=\"sec\" x=\"20\" y=\"155\">Graph data: %.03f samples/sec, recorded %i total, dropped %i samples, %i processes, %i filtered</text>\n",
+ hz, len, overrun, pscount, pfiltered);
+}
+
+
+static void svg_graph_box(int height)
+{
+ double d = 0.0;
+ int i = 0;
+
+ /* outside box, fill */
+ svg("<rect class=\"box\" x=\"%.03f\" y=\"0\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(0.0),
+ time_to_graph(sampletime[samples-1] - graph_start),
+ ps_to_graph(height));
+
+ for (d = graph_start; d <= sampletime[samples-1];
+ d += (scale_x < 2.0 ? 60.0 : scale_x < 10.0 ? 1.0 : 0.1)) {
+ /* lines for each second */
+ if (i % 50 == 0)
+ svg(" <line class=\"sec5\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ time_to_graph(d - graph_start),
+ time_to_graph(d - graph_start),
+ ps_to_graph(height));
+ else if (i % 10 == 0)
+ svg(" <line class=\"sec1\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ time_to_graph(d - graph_start),
+ time_to_graph(d - graph_start),
+ ps_to_graph(height));
+ else
+ svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ time_to_graph(d - graph_start),
+ time_to_graph(d - graph_start),
+ ps_to_graph(height));
+
+ /* time label */
+ if (i % 10 == 0)
+ svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n",
+ time_to_graph(d - graph_start),
+ -5.0,
+ d - graph_start);
+
+ i++;
+ }
+}
+
+
+static void svg_pss_graph(void)
+{
+ struct ps_struct *ps;
+ int i;
+
+ svg("\n\n<!-- Pss memory size graph -->\n");
+
+ svg("\n <text class=\"t2\" x=\"5\" y=\"-15\">Memory allocation - Pss</text>\n");
+
+ /* vsize 1000 == 1000mb */
+ svg_graph_box(100);
+ /* draw some hlines for usable memory sizes */
+ for (i = 100000; i < 1000000; i += 100000) {
+ svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"%.0f\" x2=\"%.03f\" y2=\"%.0f\"/>\n",
+ time_to_graph(.0),
+ kb_to_graph(i),
+ time_to_graph(sampletime[samples-1] - graph_start),
+ kb_to_graph(i));
+ svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.0f\">%dM</text>\n",
+ time_to_graph(sampletime[samples-1] - graph_start) + 5,
+ kb_to_graph(i), (1000000 - i) / 1000);
+ }
+ svg("\n");
+
+ /* now plot the graph itself */
+ for (i = 1; i < samples ; i++) {
+ int bottom;
+ int top;
+
+ bottom = 0;
+ top = 0;
+
+ /* put all the small pss blocks into the bottom */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (!ps)
+ continue;
+ if (ps->sample[i].pss <= (100 * scale_y))
+ top += ps->sample[i].pss;
+ };
+ svg(" <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ "rgb(64,64,64)",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ kb_to_graph(1000000.0 - top),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ kb_to_graph(top - bottom));
+
+ bottom = top;
+
+ /* now plot the ones that are of significant size */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (!ps)
+ continue;
+ /* don't draw anything smaller than 2mb */
+ if (ps->sample[i].pss > (100 * scale_y)) {
+ top = bottom + ps->sample[i].pss;
+ svg(" <rect class=\"clrw\" style=\"fill: %s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ colorwheel[ps->pid % 12],
+ time_to_graph(sampletime[i - 1] - graph_start),
+ kb_to_graph(1000000.0 - top),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ kb_to_graph(top - bottom));
+ bottom = top;
+ }
+ }
+ }
+
+ /* overlay all the text labels */
+ for (i = 1; i < samples ; i++) {
+ int bottom;
+ int top;
+
+ bottom = 0;
+ top = 0;
+
+ /* put all the small pss blocks into the bottom */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (!ps)
+ continue;
+ if (ps->sample[i].pss <= (100 * scale_y))
+ top += ps->sample[i].pss;
+ };
+
+ bottom = top;
+
+ /* now plot the ones that are of significant size */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (!ps)
+ continue;
+ /* don't draw anything smaller than 2mb */
+ if (ps->sample[i].pss > (100 * scale_y)) {
+ top = bottom + ps->sample[i].pss;
+ /* draw a label with the process / PID */
+ if ((i == 1) || (ps->sample[i - 1].pss <= (100 * scale_y)))
+ svg(" <text x=\"%.03f\" y=\"%.03f\">%s [%i]</text>\n",
+ time_to_graph(sampletime[i] - graph_start),
+ kb_to_graph(1000000.0 - bottom - ((top - bottom) / 2)),
+ ps->name,
+ ps->pid);
+ bottom = top;
+ }
+ }
+ }
+
+ /* debug output - full data dump */
+ svg("\n\n<!-- PSS map - csv format -->\n");
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (!ps)
+ continue;
+ svg("<!-- %s [%d] pss=", ps->name, ps->pid);
+ for (i = 0; i < samples ; i++) {
+ svg("%d," , ps->sample[i].pss);
+ }
+ svg(" -->\n");
+ }
+
+}
+
+static void svg_io_bi_bar(void)
+{
+ double max = 0.0;
+ double range;
+ int max_here = 0;
+ int i;
+
+ svg("<!-- IO utilization graph - In -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - read</text>\n");
+
+ /*
+ * calculate rounding range
+ *
+ * We need to round IO data since IO block data is not updated on
+ * each poll. Applying a smoothing function loses some burst data,
+ * so keep the smoothing range short.
+ */
+ range = 0.25 / (1.0 / hz);
+ if (range < 2.0)
+ range = 2.0; /* no smoothing */
+
+ /* surrounding box */
+ svg_graph_box(5);
+
+ /* find the max IO first */
+ for (i = 1; i < samples; i++) {
+ int start;
+ int stop;
+ double tot;
+
+ start = max(i - ((range / 2) - 1), 0);
+ stop = min(i + (range / 2), samples - 1);
+
+ tot = (double)(blockstat[stop].bi - blockstat[start].bi)
+ / (stop - start);
+ if (tot > max) {
+ max = tot;
+ max_here = i;
+ }
+ tot = (double)(blockstat[stop].bo - blockstat[start].bo)
+ / (stop - start);
+ if (tot > max)
+ max = tot;
+ }
+
+ /* plot bi */
+ for (i = 1; i < samples; i++) {
+ int start;
+ int stop;
+ double tot;
+ double pbi;
+
+ start = max(i - ((range / 2) - 1), 0);
+ stop = min(i + (range / 2), samples);
+
+ tot = (double)(blockstat[stop].bi - blockstat[start].bi)
+ / (stop - start);
+ pbi = tot / max;
+
+ if (pbi > 0.001)
+ svg("<rect class=\"bi\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ (scale_y * 5) - (pbi * (scale_y * 5)),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ pbi * (scale_y * 5));
+
+ /* labels around highest value */
+ if (i == max_here) {
+ svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",
+ time_to_graph(sampletime[i] - graph_start) + 5,
+ ((scale_y * 5) - (pbi * (scale_y * 5))) + 15,
+ max / 1024.0 / (interval / 1000000000.0));
+ }
+ }
+}
+
+static void svg_io_bo_bar(void)
+{
+ double max = 0.0;
+ double range;
+ int max_here = 0;
+ int i;
+
+ svg("<!-- IO utilization graph - out -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">IO utilization - write</text>\n");
+
+ /*
+ * calculate rounding range
+ *
+ * We need to round IO data since IO block data is not updated on
+ * each poll. Applying a smoothing function loses some burst data,
+ * so keep the smoothing range short.
+ */
+ range = 0.25 / (1.0 / hz);
+ if (range < 2.0)
+ range = 2.0; /* no smoothing */
+
+ /* surrounding box */
+ svg_graph_box(5);
+
+ /* find the max IO first */
+ for (i = 1; i < samples; i++) {
+ int start;
+ int stop;
+ double tot;
+
+ start = max(i - ((range / 2) - 1), 0);
+ stop = min(i + (range / 2), samples - 1);
+
+ tot = (double)(blockstat[stop].bi - blockstat[start].bi)
+ / (stop - start);
+ if (tot > max)
+ max = tot;
+ tot = (double)(blockstat[stop].bo - blockstat[start].bo)
+ / (stop - start);
+ if (tot > max) {
+ max = tot;
+ max_here = i;
+ }
+ }
+
+ /* plot bo */
+ for (i = 1; i < samples; i++) {
+ int start;
+ int stop;
+ double tot;
+ double pbo;
+
+ start = max(i - ((range / 2) - 1), 0);
+ stop = min(i + (range / 2), samples);
+
+ tot = (double)(blockstat[stop].bo - blockstat[start].bo)
+ / (stop - start);
+ pbo = tot / max;
+
+ if (pbo > 0.001)
+ svg("<rect class=\"bo\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ (scale_y * 5) - (pbo * (scale_y * 5)),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ pbo * (scale_y * 5));
+
+ /* labels around highest bo value */
+ if (i == max_here) {
+ svg(" <text class=\"sec\" x=\"%.03f\" y=\"%.03f\">%0.2fmb/sec</text>\n",
+ time_to_graph(sampletime[i] - graph_start) + 5,
+ ((scale_y * 5) - (pbo * (scale_y * 5))),
+ max / 1024.0 / (interval / 1000000000.0));
+ }
+ }
+}
+
+
+static void svg_cpu_bar(void)
+{
+ int i;
+
+ svg("<!-- CPU utilization graph -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">CPU utilization</text>\n");
+ /* surrounding box */
+ svg_graph_box(5);
+
+ /* bars for each sample, proportional to the CPU util. */
+ for (i = 1; i < samples; i++) {
+ int c;
+ double trt;
+ double ptrt;
+
+ ptrt = trt = 0.0;
+
+ for (c = 0; c < cpus; c++)
+ trt += cpustat[c].sample[i].runtime - cpustat[c].sample[i - 1].runtime;
+
+ trt = trt / 1000000000.0;
+
+ trt = trt / (double)cpus;
+
+ if (trt > 0.0)
+ ptrt = trt / (sampletime[i] - sampletime[i - 1]);
+
+ if (ptrt > 1.0)
+ ptrt = 1.0;
+
+ if (ptrt > 0.001) {
+ svg("<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ (scale_y * 5) - (ptrt * (scale_y * 5)),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ ptrt * (scale_y * 5));
+ }
+ }
+}
+
+static void svg_wait_bar(void)
+{
+ int i;
+
+ svg("<!-- Wait time aggregation box -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">CPU wait</text>\n");
+
+ /* surrounding box */
+ svg_graph_box(5);
+
+ /* bars for each sample, proportional to the CPU util. */
+ for (i = 1; i < samples; i++) {
+ int c;
+ double twt;
+ double ptwt;
+
+ ptwt = twt = 0.0;
+
+ for (c = 0; c < cpus; c++)
+ twt += cpustat[c].sample[i].waittime - cpustat[c].sample[i - 1].waittime;
+
+ twt = twt / 1000000000.0;
+
+ twt = twt / (double)cpus;
+
+ if (twt > 0.0)
+ ptwt = twt / (sampletime[i] - sampletime[i - 1]);
+
+ if (ptwt > 1.0)
+ ptwt = 1.0;
+
+ if (ptwt > 0.001) {
+ svg("<rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ ((scale_y * 5) - (ptwt * (scale_y * 5))),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ ptwt * (scale_y * 5));
+ }
+ }
+}
+
+
+static void svg_entropy_bar(void)
+{
+ int i;
+
+ svg("<!-- entropy pool graph -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">Entropy pool size</text>\n");
+ /* surrounding box */
+ svg_graph_box(5);
+
+ /* bars for each sample, scale 0-4096 */
+ for (i = 1; i < samples; i++) {
+ /* svg("<!-- entropy %.03f %i -->\n", sampletime[i], entropy_avail[i]); */
+ svg("<rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[i - 1] - graph_start),
+ ((scale_y * 5) - ((entropy_avail[i] / 4096.) * (scale_y * 5))),
+ time_to_graph(sampletime[i] - sampletime[i - 1]),
+ (entropy_avail[i] / 4096.) * (scale_y * 5));
+ }
+}
+
+
+static struct ps_struct *get_next_ps(struct ps_struct *ps)
+{
+ /*
+ * walk the list of processes and return the next one to be
+ * painted
+ */
+ if (ps == ps_first)
+ return ps->next_ps;
+
+ /* go deep */
+ if (ps->children)
+ return ps->children;
+
+ /* find siblings */
+ if (ps->next)
+ return ps->next;
+
+ /* go back for parent siblings */
+ while (1) {
+ if (ps->parent)
+ if (ps->parent->next)
+ return ps->parent->next;
+ ps = ps->parent;
+ if (!ps)
+ return ps;
+ }
+
+ return NULL;
+}
+
+
+static int ps_filter(struct ps_struct *ps)
+{
+ if (!filter)
+ return 0;
+
+ /* can't draw data when there is only 1 sample (need start + stop) */
+ if (ps->first == ps->last)
+ return -1;
+
+ /* don't filter kthreadd */
+ if (ps->pid == 2)
+ return 0;
+
+ /* drop stuff that doesn't use any real CPU time */
+ if (ps->total <= 0.001)
+ return -1;
+
+ return 0;
+}
+
+
+static void svg_do_initcall(int count_only)
+{
+ FILE *f;
+ double t;
+ char func[256];
+ int ret;
+ int usecs;
+
+ /* can't plot initcall when disabled or in relative mode */
+ if (!initcall || relative) {
+ kcount = 0;
+ return;
+ }
+
+ if (!count_only) {
+ svg("<!-- initcall -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">Kernel init threads</text>\n");
+ /* surrounding box */
+ svg_graph_box(kcount);
+ }
+
+ kcount = 0;
+
+ /*
+ * Initcall graphing - parses dmesg buffer and displays kernel threads
+ * This somewhat uses the same methods and scaling to show processes
+ * but looks a lot simpler. It's overlaid entirely onto the PS graph
+ * when appropriate.
+ */
+
+ f = popen("dmesg", "r");
+ if (!f)
+ return;
+
+ while (!feof(f)) {
+ int c;
+ int z = 0;
+ char l[256];
+
+ if (fgets(l, sizeof(l) - 1, f) == NULL)
+ continue;
+
+ c = sscanf(l, "[%lf] initcall %s %*s %d %*s %d %*s",
+ &t, func, &ret, &usecs);
+ if (c != 4) {
+ /* also parse initcalls done by module loading */
+ c = sscanf(l, "[%lf] initcall %s %*s %*s %d %*s %d %*s",
+ &t, func, &ret, &usecs);
+ if (c != 4)
+ continue;
+ }
+
+ /* chop the +0xXX/0xXX stuff */
+ while(func[z] != '+')
+ z++;
+ func[z] = 0;
+
+ if (count_only) {
+ /* filter out irrelevant stuff */
+ if (usecs >= 1000)
+ kcount++;
+ continue;
+ }
+
+ svg("<!-- thread=\"%s\" time=\"%.3f\" elapsed=\"%d\" result=\"%d\" -->\n",
+ func, t, usecs, ret);
+
+ if (usecs < 1000)
+ continue;
+
+ /* rect */
+ svg(" <rect class=\"krnl\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(t - (usecs / 1000000.0)),
+ ps_to_graph(kcount),
+ time_to_graph(usecs / 1000000.0),
+ ps_to_graph(1));
+
+ /* label */
+ svg(" <text x=\"%.03f\" y=\"%.03f\">%s <tspan class=\"run\">%.03fs</tspan></text>\n",
+ time_to_graph(t - (usecs / 1000000.0)) + 5,
+ ps_to_graph(kcount) + 15,
+ func,
+ usecs / 1000000.0);
+
+ kcount++;
+ }
+
+ fclose(f);
+}
+
+
+static void svg_ps_bars(void)
+{
+ struct ps_struct *ps;
+ int i = 0;
+ int j = 0;
+ int w;
+ int pid;
+
+ svg("<!-- Process graph -->\n");
+
+ svg("<text class=\"t2\" x=\"5\" y=\"-15\">Processes</text>\n");
+
+ /* surrounding box */
+ svg_graph_box(pcount);
+
+ /* pass 2 - ps boxes */
+ ps = ps_first;
+ while ((ps = get_next_ps(ps))) {
+ double starttime;
+ int t;
+
+ if (!ps)
+ continue;
+
+ /* leave some trace of what we actually filtered etc. */
+ svg("<!-- %s [%i] ppid=%i runtime=%.03fs -->\n", ps->name, ps->pid,
+ ps->ppid, ps->total);
+
+ /* it would be nice if we could use exec_start from /proc/pid/sched,
+ * but it's unreliable and gives bogus numbers */
+ starttime = sampletime[ps->first];
+
+ if (!ps_filter(ps)) {
+ /* remember where _to_ our children need to draw a line */
+ ps->pos_x = time_to_graph(starttime - graph_start);
+ ps->pos_y = ps_to_graph(j+1); /* bottom left corner */
+ } else {
+ /* hook children to our parent coords instead */
+ ps->pos_x = ps->parent->pos_x;
+ ps->pos_y = ps->parent->pos_y;
+
+ /* if this is the last child, we might still need to draw a connecting line */
+ if ((!ps->next) && (ps->parent))
+ svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ ps->parent->pos_x,
+ ps_to_graph(j-1) + 10.0, /* whee, use the last value here */
+ ps->parent->pos_x,
+ ps->parent->pos_y);
+ continue;
+ }
+
+ svg(" <rect class=\"ps\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(starttime - graph_start),
+ ps_to_graph(j),
+ time_to_graph(sampletime[ps->last] - starttime),
+ ps_to_graph(1));
+
+ /* paint cpu load over these */
+ for (t = ps->first + 1; t < ps->last; t++) {
+ double rt, prt;
+ double wt, wrt;
+
+ /* calculate over interval */
+ rt = ps->sample[t].runtime - ps->sample[t-1].runtime;
+ wt = ps->sample[t].waittime - ps->sample[t-1].waittime;
+
+ prt = (rt / 1000000000) / (sampletime[t] - sampletime[t-1]);
+ wrt = (wt / 1000000000) / (sampletime[t] - sampletime[t-1]);
+
+ /* this can happen if timekeeping isn't accurate enough */
+ if (prt > 1.0)
+ prt = 1.0;
+ if (wrt > 1.0)
+ wrt = 1.0;
+
+ if ((prt < 0.1) && (wrt < 0.1)) /* =~ 26 (color threshold) */
+ continue;
+
+ svg(" <rect class=\"wait\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[t - 1] - graph_start),
+ ps_to_graph(j),
+ time_to_graph(sampletime[t] - sampletime[t - 1]),
+ ps_to_graph(wrt));
+
+ /* draw cpu over wait - TODO figure out how/why run + wait > interval */
+ svg(" <rect class=\"cpu\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\n",
+ time_to_graph(sampletime[t - 1] - graph_start),
+ ps_to_graph(j + (1.0 - prt)),
+ time_to_graph(sampletime[t] - sampletime[t - 1]),
+ ps_to_graph(prt));
+ }
+
+ /* determine where to display the process name */
+ if (sampletime[ps->last] - sampletime[ps->first] < 1.5)
+ /* too small to fit label inside the box */
+ w = ps->last;
+ else
+ w = ps->first;
+
+ /* text label of process name */
+ svg(" <text x=\"%.03f\" y=\"%.03f\">%s [%i] <tspan class=\"run\">%.03fs</tspan></text>\n",
+ time_to_graph(sampletime[w] - graph_start) + 5.0,
+ ps_to_graph(j) + 14.0,
+ ps->name,
+ ps->pid,
+ (ps->sample[ps->last].runtime - ps->sample[ps->first].runtime) / 1000000000.0);
+ /* paint lines to the parent process */
+ if (ps->parent) {
+ /* horizontal part */
+ svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ time_to_graph(starttime - graph_start),
+ ps_to_graph(j) + 10.0,
+ ps->parent->pos_x,
+ ps_to_graph(j) + 10.0);
+
+ /* one vertical line connecting all the horizontal ones up */
+ if (!ps->next)
+ svg(" <line class=\"dot\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ ps->parent->pos_x,
+ ps_to_graph(j) + 10.0,
+ ps->parent->pos_x,
+ ps->parent->pos_y);
+ }
+
+ j++; /* count boxes */
+
+ svg("\n");
+ }
+
+ /* last pass - determine when idle */
+ pid = getpid();
+ /* make sure we start counting from the point where we actually have
+ * data: assume that bootchart's first sample is when data started
+ */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (ps->pid == pid)
+ break;
+ }
+
+ for (i = ps->first; i < samples - (hz / 2); i++) {
+ double crt;
+ double brt;
+ int c;
+
+ /* subtract bootchart cpu utilization from total */
+ crt = 0.0;
+ for (c = 0; c < cpus; c++)
+ crt += cpustat[c].sample[i + ((int)hz / 2)].runtime - cpustat[c].sample[i].runtime;
+ brt = ps->sample[i + ((int)hz / 2)].runtime - ps->sample[i].runtime;
+
+ /*
+ * our definition of "idle":
+ *
+ * if for (hz / 2) we've used less CPU than (interval / 2) ...
+ * defaults to 4.0%, which experimentally, is where atom idles
+ */
+ if ((crt - brt) < (interval / 2.0)) {
+ idletime = sampletime[i] - graph_start;
+ svg("\n<!-- idle detected at %.03f seconds -->\n",
+ idletime);
+ svg("<line class=\"idle\" x1=\"%.03f\" y1=\"%.03f\" x2=\"%.03f\" y2=\"%.03f\" />\n",
+ time_to_graph(idletime),
+ -scale_y,
+ time_to_graph(idletime),
+ ps_to_graph(pcount) + scale_y);
+ svg("<text class=\"idle\" x=\"%.03f\" y=\"%.03f\">%.01fs</text>\n",
+ time_to_graph(idletime) + 5.0,
+ ps_to_graph(pcount) + scale_y,
+ idletime);
+ break;
+ }
+ }
+}
+
+
+static void svg_top_ten_cpu(void)
+{
+ struct ps_struct *top[10];
+ struct ps_struct emptyps;
+ struct ps_struct *ps;
+ int n, m;
+
+ memset(&emptyps, 0, sizeof(struct ps_struct));
+ for (n=0; n < 10; n++)
+ top[n] = &emptyps;
+
+ /* walk all ps's and setup ptrs */
+ ps = ps_first;
+ while ((ps = get_next_ps(ps))) {
+ for (n = 0; n < 10; n++) {
+ if (ps->total <= top[n]->total)
+ continue;
+ /* cascade insert */
+ for (m = 9; m > n; m--)
+ top[m] = top[m-1];
+ top[n] = ps;
+ break;
+ }
+ }
+
+ svg("<text class=\"t2\" x=\"20\" y=\"0\">Top CPU consumers:</text>\n");
+ for (n = 0; n < 10; n++)
+ svg("<text class=\"t3\" x=\"20\" y=\"%d\">%3.03fs - %s[%d]</text>\n",
+ 20 + (n * 13),
+ top[n]->total,
+ top[n]->name,
+ top[n]->pid);
+}
+
+
+static void svg_top_ten_pss(void)
+{
+ struct ps_struct *top[10];
+ struct ps_struct emptyps;
+ struct ps_struct *ps;
+ int n, m;
+
+ memset(&emptyps, 0, sizeof(struct ps_struct));
+ for (n=0; n < 10; n++)
+ top[n] = &emptyps;
+
+ /* walk all ps's and setup ptrs */
+ ps = ps_first;
+ while ((ps = get_next_ps(ps))) {
+ for (n = 0; n < 10; n++) {
+ if (ps->pss_max <= top[n]->pss_max)
+ continue;
+ /* cascade insert */
+ for (m = 9; m > n; m--)
+ top[m] = top[m-1];
+ top[n] = ps;
+ break;
+ }
+ }
+
+ svg("<text class=\"t2\" x=\"20\" y=\"0\">Top PSS consumers:</text>\n");
+ for (n = 0; n < 10; n++)
+ svg("<text class=\"t3\" x=\"20\" y=\"%d\">%dK - %s[%d]</text>\n",
+ 20 + (n * 13),
+ top[n]->pss_max,
+ top[n]->name,
+ top[n]->pid);
+}
+
+
+void svg_do(void)
+{
+ struct ps_struct *ps;
+
+ memset(&str, 0, sizeof(str));
+
+ ps = ps_first;
+
+ /* count initcall thread count first */
+ svg_do_initcall(1);
+ ksize = (kcount ? ps_to_graph(kcount) + (scale_y * 2) : 0);
+
+ /* then count processes */
+ while ((ps = get_next_ps(ps))) {
+ if (!ps_filter(ps))
+ pcount++;
+ else
+ pfiltered++;
+ }
+ psize = ps_to_graph(pcount) + (scale_y * 2);
+
+ esize = (entropy ? scale_y * 7 : 0);
+
+ /* after this, we can draw the header with proper sizing */
+ svg_header();
+
+ svg("<g transform=\"translate(10,400)\">\n");
+ svg_io_bi_bar();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 7.0));
+ svg_io_bo_bar();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 14.0));
+ svg_cpu_bar();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 21.0));
+ svg_wait_bar();
+ svg("</g>\n\n");
+
+ if (kcount) {
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 28.0));
+ svg_do_initcall(0);
+ svg("</g>\n\n");
+ }
+
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 28.0) + ksize);
+ svg_ps_bars();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(10, 0)\">\n");
+ svg_title();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(10,200)\">\n");
+ svg_top_ten_cpu();
+ svg("</g>\n\n");
+
+ if (entropy) {
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 28.0) + ksize + psize);
+ svg_entropy_bar();
+ svg("</g>\n\n");
+ }
+
+ if (pss) {
+ svg("<g transform=\"translate(10,%.03f)\">\n", 400.0 + (scale_y * 28.0) + ksize + psize + esize);
+ svg_pss_graph();
+ svg("</g>\n\n");
+
+ svg("<g transform=\"translate(410,200)\">\n");
+ svg_top_ten_pss();
+ svg("</g>\n\n");
+ }
+
+ /* svg footer */
+ svg("\n</svg>\n");
+}
--
1.7.11.2
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