[systemd-devel] Different bootchart versions (was: systemd-udevd: excessive I/O usage)

[Paul Menzel]

Dear Auke,


Am Montag, den 04.06.2012, 13:02 -0700 schrieb Kok, Auke-jan H:
> On Mon, Jun 4, 2012 at 12:49 PM, Peeters Simon <peeters.simon at gmail.com> wrote:

> > while trying to optimize my bootup i noted that i could not squeeze it
> > under 17seconds userspace
> >
> > Looking at the bootchart revealed that this is mainly due to
> > systemd-udevd consuming 60% of my bootup I/O.
> > This means i lose 12 seconds of bootup just to one process.
> 
> can you post the bootchart SVG file?
> 
> I'm assuming you're using this version of bootchart:
> 
> http://foo-projects.org/~sofar/bootchart/bootchart-1.18.tar.gz

looking at Debian there are two packages.

        $ LANG=C aptitude show bootchart bootchart2
        Package: bootchart                       
        State: installed
        Automatically installed: yes
        Version: 0.10~svn407-3.3
        Priority: optional
        Section: admin
        Maintainer: J??rg Sommer <joerg at alea.gnuu.de>
        Architecture: all
        Uncompressed Size: 135 k
        Depends: psmisc, lsb-base (>= 3.0-6)
        Recommends: bootchart-view, acct
        Description: Boot process performance analyser
         Bootchart is a tool for performance analysis and visualization of the GNU/Linux boot process. Resource utilization and process information
         are collected during the boot process and are later rendered in a PNG, SVG or EPS encoded chart. 
         
         You can render the data with bootchart-view or at http://www.bootchart.org/download.html
        Homepage: http://www.bootchart.org/

        Package: bootchart2
        New: yes
        State: not installed
        Version: 0.14.2-1
        Priority: optional
        Section: utils
        Maintainer: David Paleino <dapal at debian.org>
        Architecture: i386
        Uncompressed Size: 126 k
        Depends: libc6 (>= 2.4)
        Recommends: pybootchartgui
        Conflicts: bootchart
        Description: boot process performance analyser
         bootchart2 is a boot process performance analyser: a tool that lets you collect and analyse data from your boot process. bootchart2 origins
         from bootchart, and has some advantages over it: 
         
         * more detailed kernel charting: uses the taskstats interface, instead of /proc/*/stat 
         * the data collector has been rewritten to make it faster 
           
         After the boot, you can view the logged data with a separately-provided GUI.
        Homepage: http://github.com/mmeeks/bootchart

Could you clarify the relation between the version you meantioned [1]
and bootchart2 maintained by Michael Meeks [1]? That would be awesome.

[…]


Thanks,

Paul


[1] http://foo-projects.org/~sofar/bootchart/
[2] http://github.com/mmeeks/bootchart
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part
URL: <http://lists.freedesktop.org/archives/systemd-devel/attachments/20120605/cb73d9b0/attachment.pgp>