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overlay: Correct layout of ring/seqno in raw sample

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For seqno completion, the events are too coarse i.e. one event may
signal the completion of a few seqno. We will need to sort the events to
properly compute the busy times.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-08-17 23:07:01 +01:00
parent 67f533f836
commit f185f46114
2 changed files with 11 additions and 2 deletions
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12
overlay/gpu-perf.c
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@ -231,6 +231,7 @@ static int busy_start(struct gpu_perf *gp, const void *event)
if (busy == NULL)
return 0;
busy->ring = sample->raw[1];
busy->seqno = sample->raw[2];
busy->time = sample->time;
busy->comm = comm;
@ -246,6 +247,9 @@ static int busy_end(struct gpu_perf *gp, const void *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;
@ -279,7 +283,8 @@ static int wait_begin(struct gpu_perf *gp, const void *event)
return 0;
wait->comm = comm;
wait->seqno = sample->raw[3];
wait->ring = sample->raw[1];
wait->seqno = sample->raw[2];
wait->time = sample->time;
wait->next = gp->wait;
gp->wait = wait;
@ -293,7 +298,10 @@ static int wait_end(struct gpu_perf *gp, const void *event)
struct gpu_perf_time *wait, **prev;
for (prev = &gp->wait; (wait = *prev) != NULL; prev = &wait->next) {
if (wait->seqno != sample->raw[3])
if (wait->ring != sample->raw[1])
continue;
if (wait->seqno != sample->raw[2])
continue;
wait->comm->wait_time += sample->time - wait->time;

1
overlay/gpu-perf.h
View File

@ -25,6 +25,7 @@ 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;