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igt/gem_ctx_thrash: Tweak resource limits

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On some systems (ok, most systems!) we may need to enlarge the allowed
number of open files in order to create enough fd to fill the aperture.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87572
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-01-06 09:59:47 +00:00
parent eaa1e8e127
commit 25cf0551c7
1 changed files with 12 additions and 0 deletions
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12
tests/gem_ctx_thrash.c
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@ -28,6 +28,7 @@
#include <pthread.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include "ioctl_wrappers.h"
#include "igt_aux.h"
@ -140,6 +141,7 @@ processes(void)
{
int *all_fds;
uint64_t aperture;
struct rlimit rlim;
int ppgtt_mode;
int ctx_size;
int obj_size;
@ -165,6 +167,16 @@ processes(void)
igt_info("Creating %d contexts (assuming of size %d)\n",
num_ctx, ctx_size);
intel_require_memory(num_ctx, ctx_size, CHECK_RAM | CHECK_SWAP);
/* tweak rlimits to allow us to create this many files */
igt_assert(getrlimit(RLIMIT_NOFILE, &rlim) == 0);
if (rlim.rlim_cur < ALIGN(num_ctx + 1024, 1024)) {
rlim.rlim_cur = ALIGN(num_ctx + 1024, 1024);
if (rlim.rlim_cur > rlim.rlim_max)
rlim.rlim_max = rlim.rlim_cur;
igt_assert(setrlimit(RLIMIT_NOFILE, &rlim) == 0);
}
all_fds = malloc(num_ctx * sizeof(int));
igt_assert(all_fds);
for (n = 0; n < num_ctx; n++) {