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Code Issues Releases Wiki Activity

overlay: Remove busy estimation

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Too inaccurate to be useful.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-22 01:30:02 +01:00
parent 4572067c88
commit b20a6b8279
2 changed files with 6 additions and 56 deletions
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57
overlay/gpu-perf.c
View File

@ -241,51 +241,6 @@ static int request_add(struct gpu_perf *gp, const void *event)
return 1;
}
static int busy_start(struct gpu_perf *gp, const void *event)
{
const struct sample_event *sample = event;
struct gpu_perf_comm *comm;
struct gpu_perf_time *busy;
comm = lookup_comm(gp, sample->pid);
if (comm == NULL)
return 0;
busy = malloc(sizeof(*busy));
if (busy == NULL)
return 0;
busy->ring = sample->raw[1];
busy->seqno = sample->raw[2];
busy->time = sample->time;
busy->comm = comm;
busy->next = gp->busy;
gp->busy = busy;
return 0;
}
static int busy_end(struct gpu_perf *gp, const void *event)
{
const struct sample_event *sample = event;
struct gpu_perf_time *busy, **prev;
for (prev = &gp->busy; (busy = *prev) != NULL; prev = &busy->next) {
if (busy->ring != sample->raw[1])
continue;
if (busy->seqno != sample->raw[2])
continue;
busy->comm->busy_time += sample->time - busy->time;
*prev = busy->next;
free(busy);
return 1;
}
return 0;
}
static int flip_complete(struct gpu_perf *gp, const void *event)
{
const struct sample_event *sample = event;
@ -309,11 +264,10 @@ static int wait_begin(struct gpu_perf *gp, const void *event)
return 0;
wait->comm = comm;
wait->ring = sample->raw[1];
wait->seqno = sample->raw[2];
wait->time = sample->time;
wait->next = gp->wait;
gp->wait = wait;
wait->next = gp->wait[sample->raw[1]];
gp->wait[sample->raw[1]] = wait;
return 0;
}
@ -323,10 +277,7 @@ static int wait_end(struct gpu_perf *gp, const void *event)
const struct sample_event *sample = event;
struct gpu_perf_time *wait, **prev;
for (prev = &gp->wait; (wait = *prev) != NULL; prev = &wait->next) {
if (wait->ring != sample->raw[1])
continue;
for (prev = &gp->wait[sample->raw[1]]; (wait = *prev) != NULL; prev = &wait->next) {
if (wait->seqno != sample->raw[2])
continue;
@ -346,8 +297,6 @@ void gpu_perf_init(struct gpu_perf *gp, unsigned flags)
gp->page_size = getpagesize();
perf_tracepoint_open(gp, "i915", "i915_gem_request_add", request_add);
if (perf_tracepoint_open(gp, "i915", "i915_gem_ring_complete", busy_end) == 0)
perf_tracepoint_open(gp, "i915", "i915_gem_ring_dispatch", busy_start);
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);

5
overlay/gpu-perf.h
View File

@ -27,6 +27,8 @@
#include <stdint.h>
#define MAX_RINGS 4
struct gpu_perf {
int page_size;
int nr_cpus;
@ -52,10 +54,9 @@ struct gpu_perf {
struct gpu_perf_time {
struct gpu_perf_time *next;
struct gpu_perf_comm *comm;
int ring;
uint32_t seqno;
uint64_t time;
} *wait, *busy;
} *wait[MAX_RINGS];
};
void gpu_perf_init(struct gpu_perf *gp, unsigned flags);