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overlay: Count number of semaphores used by each process

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This required me to contract the per-process information considerably,
hopefully readability is not sacrificed too much.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-26 14:11:27 +01:00
parent 1e65d5ac2f
commit 908df374a9
3 changed files with 55 additions and 55 deletions
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14
overlay/gpu-perf.c
View File

@ -249,6 +249,19 @@ static int flip_complete(struct gpu_perf *gp, const void *event)
return 1;
}
static int ring_sync(struct gpu_perf *gp, const void *event)
{
const struct sample_event *sample = event;
struct gpu_perf_comm *comm;
comm = lookup_comm(gp, sample->pid);
if (comm == NULL)
return 0;
comm->nr_sema++;
return 1;
}
static int wait_begin(struct gpu_perf *gp, const void *event)
{
const struct sample_event *sample = event;
@ -300,6 +313,7 @@ void gpu_perf_init(struct gpu_perf *gp, unsigned flags)
if (perf_tracepoint_open(gp, "i915", "i915_gem_request_wait_begin", wait_begin) == 0)
perf_tracepoint_open(gp, "i915", "i915_gem_request_wait_end", wait_end);
perf_tracepoint_open(gp, "i915", "i915_flip_complete", flip_complete);
perf_tracepoint_open(gp, "i915", "i915_gem_ring_sync_to", ring_sync);
if (gp->nr_events == 0) {
gp->error = "i915.ko tracepoints not available";

2
overlay/gpu-perf.h
View File

@ -50,7 +50,7 @@ struct gpu_perf {
void *user_data;
uint64_t wait_time;
uint64_t busy_time;
uint32_t nr_sema;
} *comm;
struct gpu_perf_time {
struct gpu_perf_time *next;

94
overlay/overlay.c
View File

@ -282,9 +282,9 @@ static void show_gpu_perf(struct overlay_context *ctx, struct overlay_gpu_perf *
};
struct gpu_perf_comm *comm, **prev;
const char *ring_name[] = {
"render",
"video",
"blt",
"R",
"V",
"B",
};
double range[2];
char buf[1024];
@ -361,7 +361,42 @@ static void show_gpu_perf(struct overlay_context *ctx, struct overlay_gpu_perf *
cairo_fill(ctx->cr);
for (prev = &gp->gpu_perf.comm; (comm = *prev) != NULL; ) {
int need_comma = 0;
int need_comma = 0, len;
if (comm->name[0] == '\0')
goto skip_comm;
len = sprintf(buf, "%s:", comm->name);
for (n = 0; n < 3; n++) {
if (comm->nr_requests[n] == 0)
continue;
len += sprintf(buf + len, "%s %d%s", need_comma ? "," : "", comm->nr_requests[n], ring_name[n]);
need_comma = true;
}
if (comm->wait_time) {
if (comm->wait_time > 1000*1000) {
len += sprintf(buf + len, "%s %.1fms waits",
need_comma ? "," : "",
comm->wait_time / (1000*1000.));
} else if (comm->wait_time > 100) {
len += sprintf(buf + len, "%s %.1fus waits",
need_comma ? "," : "",
comm->wait_time / 1000.);
} else {
len += sprintf(buf, "%s %.0fns waits",
need_comma ? "," : "",
(double)comm->wait_time);
}
need_comma = true;
comm->wait_time = 0;
}
if (comm->nr_sema) {
len += sprintf(buf + len, "%s %d syncs",
need_comma ? "," : "",
comm->nr_sema);
need_comma = true;
comm->nr_sema = 0;
}
if (comm->user_data) {
struct chart *c = comm->user_data;
@ -373,59 +408,10 @@ static void show_gpu_perf(struct overlay_context *ctx, struct overlay_gpu_perf *
} else
cairo_set_source_rgba(ctx->cr, 1, 1, 1, 1);
cairo_move_to(ctx->cr, x, y);
sprintf(buf, "%s:", comm->name);
cairo_show_text(ctx->cr, buf);
for (n = 0; n < 3; n++) {
if (comm->nr_requests[n] == 0)
continue;
sprintf(buf, "%s %d %s", need_comma ? "," : "", comm->nr_requests[n], ring_name[n]);
cairo_show_text(ctx->cr, buf);
need_comma = true;
}
if (comm->wait_time) {
buf[0] = '\0';
if (comm->wait_time > 1000*1000) {
sprintf(buf, "%s %.1f ms waiting",
need_comma ? "," : "",
comm->wait_time / (1000*1000.));
} else if (comm->wait_time > 100) {
sprintf(buf, "%s %.1f us waiting",
need_comma ? "," : "",
comm->wait_time / 1000.);
} else {
sprintf(buf, "%s %.0f ns waiting",
need_comma ? "," : "",
(double)comm->wait_time);
}
if (buf[0] != '\0') {
cairo_show_text(ctx->cr, buf);
need_comma = true;
}
comm->wait_time = 0;
}
if (comm->busy_time) {
buf[0] = '\0';
if (comm->busy_time > 1000*1000) {
sprintf(buf, "%s %.1f ms busy",
need_comma ? "," : "",
comm->busy_time / (1000*1000.));
} else if (comm->busy_time > 100) {
sprintf(buf, "%s %.1f us busy",
need_comma ? "," : "",
comm->busy_time / 1000.);
} else {
sprintf(buf, "%s %.0f ns busy",
need_comma ? "," : "",
(double)comm->busy_time);
}
if (buf[0] != '\0') {
cairo_show_text(ctx->cr, buf);
need_comma = true;
}
comm->busy_time = 0;
}
y += 14;
skip_comm:
memset(comm->nr_requests, 0, sizeof(comm->nr_requests));
if (strcmp(comm->name, get_comm(comm->pid, buf, sizeof(buf)))) {
*prev = comm->next;