[Intel-gfx] [CI i-g-t 2/2] intel_gpu_top: Remove clients support
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Fri Nov 26 14:20:17 UTC 2021
From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
When kernel feature was removed the intel_gpu_top part was forgotten.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Acked-by: Petri Latvala <petri.latvala at intel.com>
---
man/intel_gpu_top.rst | 4 -
tools/intel_gpu_top.c | 810 +-----------------------------------------
2 files changed, 1 insertion(+), 813 deletions(-)
diff --git a/man/intel_gpu_top.rst b/man/intel_gpu_top.rst
index f4dbfc5b44d9..b3b765b05feb 100644
--- a/man/intel_gpu_top.rst
+++ b/man/intel_gpu_top.rst
@@ -56,10 +56,6 @@ Supported keys:
'q' Exit from the tool.
'h' Show interactive help.
'1' Toggle between aggregated engine class and physical engine mode.
- 'n' Toggle display of numeric client busyness overlay.
- 's' Toggle between sort modes (runtime, total runtime, pid, client id).
- 'i' Toggle display of clients which used no GPU time.
- 'H' Toggle between per PID aggregation and individual clients.
DEVICE SELECTION
================
diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 7311038a39f4..41c59a72c09d 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -627,562 +627,6 @@ static void pmu_sample(struct engines *engines)
}
}
-enum client_status {
- FREE = 0, /* mbz */
- ALIVE,
- PROBE
-};
-
-struct clients;
-
-struct client {
- struct clients *clients;
-
- enum client_status status;
- int sysfs_root;
- int busy_root;
- unsigned int id;
- unsigned int pid;
- char name[24];
- char print_name[24];
- unsigned int samples;
- unsigned long total_runtime;
- unsigned long last_runtime;
- struct engines *engines;
- unsigned long *val;
- uint64_t *last;
-};
-
-struct clients {
- unsigned int num_clients;
- unsigned int active_clients;
-
- unsigned int num_classes;
- struct engine_class *class;
-
- char sysfs_root[128];
-
- struct client *client;
-};
-
-#define for_each_client(clients, c, tmp) \
- for ((tmp) = (clients)->num_clients, c = (clients)->client; \
- (tmp > 0); (tmp)--, (c)++)
-
-static struct clients *init_clients(const char *drm_card)
-{
- struct clients *clients;
- const char *slash;
- ssize_t ret;
- int dir;
-
- clients = malloc(sizeof(*clients));
- if (!clients)
- return NULL;
-
- memset(clients, 0, sizeof(*clients));
-
- if (drm_card) {
- slash = rindex(drm_card, '/');
- assert(slash);
- } else {
- slash = "card0";
- }
-
- ret = snprintf(clients->sysfs_root, sizeof(clients->sysfs_root),
- "/sys/class/drm/%s/clients/", slash);
- assert(ret > 0 && ret < sizeof(clients->sysfs_root));
-
- dir = open(clients->sysfs_root, O_DIRECTORY | O_RDONLY);
- if (dir < 0) {
- free(clients);
- clients = NULL;
- } else {
- close(dir);
- }
-
- return clients;
-}
-
-static int __read_to_buf(int fd, char *buf, unsigned int bufsize)
-{
- ssize_t ret;
- int err;
-
- ret = read(fd, buf, bufsize - 1);
- err = errno;
- if (ret < 1) {
- errno = ret < 0 ? err : ENOMSG;
-
- return -1;
- }
-
- if (ret > 1 && buf[ret - 1] == '\n')
- buf[ret - 1] = '\0';
- else
- buf[ret] = '\0';
-
- return 0;
-}
-
-static int
-__read_client_field(int root, const char *field, char *buf, unsigned int bufsize)
-{
- int fd, ret;
-
- fd = openat(root, field, O_RDONLY);
- if (fd < 0)
- return -1;
-
- ret = __read_to_buf(fd, buf, bufsize);
-
- close(fd);
-
- return ret;
-}
-
-static uint64_t
-read_client_busy(struct client *client, unsigned int class)
-{
- const char *class_str[] = { "0", "1", "2", "3", "4", "5", "6", "7" };
- char buf[256], *b;
- int ret;
-
- assert(class < ARRAY_SIZE(class_str));
- if (class >= ARRAY_SIZE(class_str))
- return 0;
-
- assert(client->sysfs_root >= 0);
- if (client->sysfs_root < 0)
- return 0;
-
- if (client->busy_root < 0)
- client->busy_root = openat(client->sysfs_root, "busy",
- O_RDONLY | O_DIRECTORY);
-
- assert(client->busy_root);
- if (client->busy_root < 0)
- return 0;
-
- ret = __read_client_field(client->busy_root, class_str[class], buf,
- sizeof(buf));
- if (ret) {
- close(client->busy_root);
- client->busy_root = -1;
- return 0;
- }
-
- /*
- * Handle both single integer and key=value formats by skipping
- * leading non-digits.
- */
- b = buf;
- while (*b && !isdigit(*b))
- b++;
-
- return strtoull(b, NULL, 10);
-}
-
-static struct client *
-find_client(struct clients *clients, enum client_status status, unsigned int id)
-{
- unsigned int start, num;
- struct client *c;
-
- start = status == FREE ? clients->active_clients : 0; /* Free block at the end. */
- num = clients->num_clients - start;
-
- for (c = &clients->client[start]; num; c++, num--) {
- if (status != c->status)
- continue;
-
- if (status == FREE || c->id == id)
- return c;
- }
-
- return NULL;
-}
-
-static void update_client(struct client *c, unsigned int pid, char *name)
-{
- uint64_t val[c->clients->num_classes];
- unsigned int i;
-
- if (c->pid != pid)
- c->pid = pid;
-
- if (strcmp(c->name, name)) {
- char *p;
-
- strncpy(c->name, name, sizeof(c->name) - 1);
- strncpy(c->print_name, name, sizeof(c->print_name) - 1);
-
- p = c->print_name;
- while (*p) {
- if (!isprint(*p))
- *p = '*';
- p++;
- }
- }
-
- for (i = 0; i < c->clients->num_classes; i++)
- val[i] = read_client_busy(c, c->clients->class[i].class);
-
- c->last_runtime = 0;
- c->total_runtime = 0;
-
- for (i = 0; i < c->clients->num_classes; i++) {
- if (val[i] < c->last[i])
- continue; /* It will catch up soon. */
-
- c->total_runtime += val[i];
- c->val[i] = val[i] - c->last[i];
- c->last_runtime += c->val[i];
- c->last[i] = val[i];
- }
-
- c->samples++;
- c->status = ALIVE;
-}
-
-static void
-add_client(struct clients *clients, unsigned int id, unsigned int pid,
- char *name, int sysfs_root)
-{
- struct client *c;
-
- assert(!find_client(clients, ALIVE, id));
-
- c = find_client(clients, FREE, 0);
- if (!c) {
- unsigned int idx = clients->num_clients;
-
- clients->num_clients += (clients->num_clients + 2) / 2;
- clients->client = realloc(clients->client,
- clients->num_clients * sizeof(*c));
- assert(clients->client);
-
- c = &clients->client[idx];
- memset(c, 0, (clients->num_clients - idx) * sizeof(*c));
- }
-
- c->sysfs_root = sysfs_root;
- c->busy_root = -1;
- c->id = id;
- c->clients = clients;
- c->val = calloc(clients->num_classes, sizeof(c->val));
- c->last = calloc(clients->num_classes, sizeof(c->last));
- assert(c->val && c->last);
-
- update_client(c, pid, name);
-}
-
-static void free_client(struct client *c)
-{
- if (c->sysfs_root >= 0)
- close(c->sysfs_root);
- if (c->busy_root >= 0)
- close(c->busy_root);
- free(c->val);
- free(c->last);
- memset(c, 0, sizeof(*c));
-}
-
-static int
-read_client_sysfs(char *buf, int bufsize, const char *sysfs_root,
- unsigned int id, const char *field, int *client_root)
-{
- ssize_t ret;
-
- if (*client_root < 0) {
- char namebuf[256];
-
- ret = snprintf(namebuf, sizeof(namebuf), "%s/%u",
- sysfs_root, id);
- assert(ret > 0 && ret < sizeof(namebuf));
- if (ret <= 0 || ret == sizeof(namebuf))
- return -1;
-
- *client_root = open(namebuf, O_RDONLY | O_DIRECTORY);
- }
-
- if (*client_root < 0)
- return -1;
-
- return __read_client_field(*client_root, field, buf, bufsize);
-}
-
-static int client_last_cmp(const void *_a, const void *_b)
-{
- const struct client *a = _a;
- const struct client *b = _b;
- long tot_a, tot_b;
-
- /*
- * Sort clients in descending order of runtime in the previous sampling
- * period for active ones, followed by inactive. Tie-breaker is client
- * id.
- */
-
- tot_a = a->status == ALIVE ? a->last_runtime : -1;
- tot_b = b->status == ALIVE ? b->last_runtime : -1;
-
- tot_b -= tot_a;
- if (tot_b > 0)
- return 1;
- if (tot_b < 0)
- return -1;
-
- return (int)b->id - a->id;
-}
-
-static int client_total_cmp(const void *_a, const void *_b)
-{
- const struct client *a = _a;
- const struct client *b = _b;
- long tot_a, tot_b;
-
- tot_a = a->status == ALIVE ? a->total_runtime : -1;
- tot_b = b->status == ALIVE ? b->total_runtime : -1;
-
- tot_b -= tot_a;
- if (tot_b > 0)
- return 1;
- if (tot_b < 0)
- return -1;
-
- return (int)b->id - a->id;
-}
-
-static int client_id_cmp(const void *_a, const void *_b)
-{
- const struct client *a = _a;
- const struct client *b = _b;
- int id_a, id_b;
-
- id_a = a->status == ALIVE ? a->id : -1;
- id_b = b->status == ALIVE ? b->id : -1;
-
- id_b -= id_a;
- if (id_b > 0)
- return 1;
- if (id_b < 0)
- return -1;
-
- return (int)b->id - a->id;
-}
-
-static int client_pid_cmp(const void *_a, const void *_b)
-{
- const struct client *a = _a;
- const struct client *b = _b;
- int pid_a, pid_b;
-
- pid_a = a->status == ALIVE ? a->pid : INT_MAX;
- pid_b = b->status == ALIVE ? b->pid : INT_MAX;
-
- pid_b -= pid_a;
- if (pid_b > 0)
- return -1;
- if (pid_b < 0)
- return 1;
-
- return (int)a->id - b->id;
-}
-
-static int (*client_cmp)(const void *, const void *) = client_last_cmp;
-
-static struct clients *sort_clients(struct clients *clients,
- int (*cmp)(const void *, const void *))
-{
- unsigned int active, free;
- struct client *c;
- int tmp;
-
- if (!clients)
- return clients;
-
- qsort(clients->client, clients->num_clients, sizeof(*clients->client),
- cmp);
-
- /* Trim excessive array space. */
- active = 0;
- for_each_client(clients, c, tmp) {
- if (c->status != ALIVE)
- break; /* Active clients are first in the array. */
- active++;
- }
-
- clients->active_clients = active;
-
- free = clients->num_clients - active;
- if (free > clients->num_clients / 2) {
- active = clients->num_clients - free / 2;
- if (active != clients->num_clients) {
- clients->num_clients = active;
- clients->client = realloc(clients->client,
- clients->num_clients *
- sizeof(*c));
- }
- }
-
- return clients;
-}
-
-static bool aggregate_pids = true;
-
-static struct clients *display_clients(struct clients *clients)
-{
- struct client *ac, *c, *cp = NULL;
- struct clients *aggregated;
- int tmp, num = 0;
-
- if (!aggregate_pids)
- goto out;
-
- /* Sort by pid first to make it easy to aggregate while walking. */
- sort_clients(clients, client_pid_cmp);
-
- aggregated = calloc(1, sizeof(*clients));
- assert(aggregated);
-
- ac = calloc(clients->num_clients, sizeof(*c));
- assert(ac);
-
- aggregated->num_classes = clients->num_classes;
- aggregated->class = clients->class;
- aggregated->client = ac;
-
- for_each_client(clients, c, tmp) {
- unsigned int i;
-
- if (c->status == FREE)
- break;
-
- assert(c->status == ALIVE);
-
- if ((cp && c->pid != cp->pid) || !cp) {
- ac = &aggregated->client[num++];
-
- /* New pid. */
- ac->clients = aggregated;
- ac->status = ALIVE;
- ac->id = -c->pid;
- ac->pid = c->pid;
- ac->busy_root = -1;
- ac->sysfs_root = -1;
- strcpy(ac->name, c->name);
- strcpy(ac->print_name, c->print_name);
- ac->engines = c->engines;
- ac->val = calloc(clients->num_classes,
- sizeof(ac->val[0]));
- assert(ac->val);
- ac->samples = 1;
- }
-
- cp = c;
-
- if (c->samples < 2)
- continue;
-
- ac->samples = 2; /* All what matters for display. */
- ac->total_runtime += c->total_runtime;
- ac->last_runtime += c->last_runtime;
-
- for (i = 0; i < clients->num_classes; i++)
- ac->val[i] += c->val[i];
- }
-
- aggregated->num_clients = num;
- aggregated->active_clients = num;
-
- clients = aggregated;
-
-out:
- return sort_clients(clients, client_cmp);
-}
-
-static void free_clients(struct clients *clients)
-{
- struct client *c;
- unsigned int tmp;
-
- for_each_client(clients, c, tmp) {
- free(c->val);
- free(c->last);
- }
-
- free(clients->client);
- free(clients);
-}
-
-static struct clients *scan_clients(struct clients *clients)
-{
- struct dirent *dent;
- struct client *c;
- unsigned int id;
- int tmp;
- DIR *d;
-
- if (!clients)
- return clients;
-
- for_each_client(clients, c, tmp) {
- assert(c->status != PROBE);
- if (c->status == ALIVE)
- c->status = PROBE;
- else
- break; /* Free block at the end of array. */
- }
-
- d = opendir(clients->sysfs_root);
- if (!d)
- return clients;
-
- while ((dent = readdir(d)) != NULL) {
- char name[24], pid[24];
- int ret, root = -1, *pr;
-
- if (dent->d_type != DT_DIR)
- continue;
- if (!isdigit(dent->d_name[0]))
- continue;
-
- id = atoi(dent->d_name);
-
- c = find_client(clients, PROBE, id);
-
- if (c)
- pr = &c->sysfs_root;
- else
- pr = &root;
-
- ret = read_client_sysfs(name, sizeof(name), clients->sysfs_root,
- id, "name", pr);
- ret |= read_client_sysfs(pid, sizeof(pid), clients->sysfs_root,
- id, "pid", pr);
- if (!ret) {
- if (!c)
- add_client(clients, id, atoi(pid), name, root);
- else
- update_client(c, atoi(pid), name);
- } else if (c) {
- c->status = PROBE; /* Will be deleted below. */
- }
- }
-
- closedir(d);
-
- for_each_client(clients, c, tmp) {
- if (c->status == PROBE)
- free_client(c);
- else if (c->status == FREE)
- break;
- }
-
- return display_clients(clients);
-}
-
static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" };
static void n_spaces(const unsigned int n)
@@ -1324,18 +768,6 @@ json_close_struct(void)
fflush(stdout);
}
-static void
-__json_add_member(const char *key, const char *val)
-{
- assert(json_indent_level < ARRAY_SIZE(json_indent));
-
- fprintf(out, "%s%s\"%s\": \"%s\"",
- json_struct_members ? ",\n" : "",
- json_indent[json_indent_level], key, val);
-
- json_struct_members++;
-}
-
static unsigned int
json_add_member(const struct cnt_group *parent, struct cnt_item *item,
unsigned int headers)
@@ -2061,157 +1493,6 @@ print_engines(struct engines *engines, double t, int lines, int w, int h)
return lines;
}
-static int
-print_clients_header(struct clients *clients, int lines,
- int con_w, int con_h, int *class_w)
-{
- if (output_mode == INTERACTIVE) {
- const char *pidname = " PID NAME ";
- unsigned int num_active = 0;
- int len = strlen(pidname);
-
- if (lines++ >= con_h)
- return lines;
-
- printf("\033[7m");
- printf("%s", pidname);
-
- if (lines++ >= con_h || len >= con_w)
- return lines;
-
- if (clients->num_classes) {
- unsigned int i;
- int width;
-
- for (i = 0; i < clients->num_classes; i++) {
- if (clients->class[i].num_engines)
- num_active++;
- }
-
- *class_w = width = (con_w - len) / num_active;
-
- for (i = 0; i < clients->num_classes; i++) {
- const char *name = clients->class[i].name;
- int name_len = strlen(name);
- int pad = (width - name_len) / 2;
- int spaces = width - pad - name_len;
-
- if (!clients->class[i].num_engines)
- continue; /* Assert in the ideal world. */
-
- if (pad < 0 || spaces < 0)
- continue;
-
- n_spaces(pad);
- printf("%s", name);
- n_spaces(spaces);
- len += pad + name_len + spaces;
- }
- }
-
- n_spaces(con_w - len);
- printf("\033[0m\n");
- } else {
- if (clients->num_classes)
- pops->open_struct("clients");
- }
-
- return lines;
-}
-
-static bool numeric_clients;
-static bool filter_idle;
-
-static int
-print_client(struct client *c, struct engines *engines, double t, int lines,
- int con_w, int con_h, unsigned int period_us, int *class_w)
-{
- struct clients *clients = c->clients;
- unsigned int i;
-
- if (output_mode == INTERACTIVE) {
- if (filter_idle && (!c->total_runtime || c->samples < 2))
- return lines;
-
- lines++;
-
- printf("%6u %17s ", c->pid, c->print_name);
-
- for (i = 0; c->samples > 1 && i < clients->num_classes; i++) {
- double pct;
-
- if (!clients->class[i].num_engines)
- continue; /* Assert in the ideal world. */
-
- pct = (double)c->val[i] / period_us / 1e3 * 100 /
- clients->class[i].num_engines;
-
- /*
- * Guard against possible time-drift between sampling
- * client data and time we obtained our time-delta from
- * PMU.
- */
- if (pct > 100.0)
- pct = 100.0;
-
- print_percentage_bar(pct, *class_w, numeric_clients);
- }
-
- putchar('\n');
- } else if (output_mode == JSON) {
- char buf[64];
-
- snprintf(buf, sizeof(buf), "%u", c->id);
- pops->open_struct(buf);
-
- __json_add_member("name", c->print_name);
-
- snprintf(buf, sizeof(buf), "%u", c->pid);
- __json_add_member("pid", buf);
-
- if (c->samples > 1) {
- pops->open_struct("engine-classes");
-
- for (i = 0; i < clients->num_classes; i++) {
- double pct;
-
- snprintf(buf, sizeof(buf), "%s",
- clients->class[i].name);
- pops->open_struct(buf);
-
- pct = (double)c->val[i] / period_us / 1e3 * 100;
- snprintf(buf, sizeof(buf), "%f", pct);
- __json_add_member("busy", buf);
-
- __json_add_member("unit", "%");
-
- pops->close_struct();
- }
-
- pops->close_struct();
- }
-
- pops->close_struct();
- }
-
- return lines;
-}
-
-static int
-print_clients_footer(struct clients *clients, double t,
- int lines, int con_w, int con_h)
-{
- if (output_mode == INTERACTIVE) {
- if (lines++ < con_h)
- printf("\n");
- } else {
- if (clients->num_classes)
- pops->close_struct();
- }
-
- return lines;
-}
-
static bool stop_top;
static void sigint_handler(int sig)
@@ -2267,31 +1548,6 @@ static void interactive_stdin(void)
assert(ret == 0);
}
-static void select_client_sort(void)
-{
- struct {
- int (*cmp)(const void *, const void *);
- const char *msg;
- } cmp[] = {
- { client_last_cmp, "Sorting clients by current GPU usage." },
- { client_total_cmp, "Sorting clients by accummulated GPU usage." },
- { client_pid_cmp, "Sorting clients by pid." },
- { client_id_cmp, "Sorting clients by sysfs id." },
- };
- static unsigned int client_sort;
-
-bump:
- if (++client_sort >= ARRAY_SIZE(cmp))
- client_sort = 0;
-
- client_cmp = cmp[client_sort].cmp;
- header_msg = cmp[client_sort].msg;
-
- /* Sort by client id makes no sense with pid aggregation. */
- if (aggregate_pids && client_cmp == client_id_cmp)
- goto bump;
-}
-
static bool in_help;
static void process_help_stdin(void)
@@ -2334,29 +1590,9 @@ static void process_normal_stdin(void)
else
header_msg = "Showing physical engines.";
break;
- case 'i':
- filter_idle ^= true;
- if (filter_idle)
- header_msg = "Hiding inactive clients.";
- else
- header_msg = "Showing inactive clients.";
- break;
- case 'n':
- numeric_clients ^= true;
- break;
- case 's':
- select_client_sort();
- break;
case 'h':
in_help = true;
break;
- case 'H':
- aggregate_pids ^= true;
- if (aggregate_pids)
- header_msg = "Aggregating clients.";
- else
- header_msg = "Showing individual clients.";
- break;
};
}
}
@@ -2384,10 +1620,6 @@ static void show_help_screen(void)
printf(
"Help for interactive commands:\n\n"
" '1' Toggle between aggregated engine class and physical engine mode.\n"
-" 'n' Toggle display of numeric client busyness overlay.\n"
-" 's' Toggle between sort modes (runtime, total runtime, pid, client id).\n"
-" 'i' Toggle display of clients which used no GPU time.\n"
-" 'H' Toggle between per PID aggregation and individual clients.\n"
"\n"
" 'h' or 'q' Exit interactive help.\n"
"\n");
@@ -2396,7 +1628,6 @@ static void show_help_screen(void)
int main(int argc, char **argv)
{
unsigned int period_us = DEFAULT_PERIOD_MS * 1000;
- struct clients *clients = NULL;
int con_w = -1, con_h = -1;
char *output_path = NULL;
struct engines *engines;
@@ -2530,23 +1761,15 @@ int main(int argc, char **argv)
ret = EXIT_SUCCESS;
- clients = init_clients(card.pci_slot_name[0] ? card.card : NULL);
init_engine_classes(engines);
- if (clients) {
- clients->num_classes = engines->num_classes;
- clients->class = engines->class;
- }
pmu_sample(engines);
- scan_clients(clients);
codename = igt_device_get_pretty_name(&card, false);
while (!stop_top) {
- struct clients *disp_clients;
bool consumed = false;
- int j, lines = 0;
struct winsize ws;
- struct client *c;
+ int lines = 0;
double t;
/* Update terminal size. */
@@ -2565,8 +1788,6 @@ int main(int argc, char **argv)
pmu_sample(engines);
t = (double)(engines->ts.cur - engines->ts.prev) / 1e9;
- disp_clients = scan_clients(clients);
-
if (stop_top)
break;
@@ -2586,41 +1807,12 @@ int main(int argc, char **argv)
lines = print_engines(engines, t, lines, con_w, con_h);
- if (disp_clients) {
- int class_w;
-
- lines = print_clients_header(disp_clients, lines,
- con_w, con_h,
- &class_w);
-
- for_each_client(disp_clients, c, j) {
- assert(c->status != PROBE);
- if (c->status != ALIVE)
- break; /* Active clients are first in the array. */
-
- if (lines >= con_h)
- break;
-
- lines = print_client(c, engines, t,
- lines, con_w,
- con_h, period_us,
- &class_w);
- }
-
- lines = print_clients_footer(disp_clients, t,
- lines, con_w,
- con_h);
- }
-
pops->close_struct();
}
if (stop_top)
break;
- if (disp_clients != clients)
- free_clients(disp_clients);
-
if (output_mode == INTERACTIVE)
process_stdin(period_us);
else
--
2.32.0
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