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benchmarks/gem_blt: Measure the throughput of synchronous copies

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-03-01 15:06:43 +00:00
parent b59bcb811a
commit f3751d53bd
1 changed files with 14 additions and 3 deletions
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17
benchmarks/gem_blt.c
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@ -178,7 +178,9 @@ static int gem_linear_blt(int fd,
return (b+2 - batch) * sizeof(uint32_t);
}
static int run(int object, int batch, int time, int reps)
#define SYNC 0x1
static int run(int object, int batch, int time, int reps, unsigned flags)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 exec[3];
@ -257,6 +259,10 @@ static int run(int object, int batch, int time, int reps)
/* Guess how many loops we need for 0.1s */
count = baseline((uint64_t)object * batch, 100);
if (flags & SYNC) {
time *= count / 2;
count = 1;
}
while (reps--) {
double min = HUGE_VAL;
@ -289,9 +295,10 @@ int main(int argc, char **argv)
int reps = 13;
int time = 2000;
int batch = 1;
unsigned flags = 0;
int c;
while ((c = getopt (argc, argv, "s:b:r:t:")) != -1) {
while ((c = getopt (argc, argv, "Ss:b:r:t:")) != -1) {
switch (c) {
case 's':
size = atoi(optarg);
@ -299,6 +306,10 @@ int main(int argc, char **argv)
size = 4096;
break;
case 'S':
flags |= SYNC;
break;
case 't':
time = atoi(optarg);
if (time < 1)
@ -322,5 +333,5 @@ int main(int argc, char **argv)
}
}
return run(size, batch, time, reps);
return run(size, batch, time, reps, flags);
}