From: Oscar Mateo <[email protected]> With Full PPGTT, each new fd creates a new context and thus a new PPGTT, so we have to reduce the number of simultaneous fds or face OOM problems. For every new PPGTT, its PDEs are stored in the GGTT which imposes a limit of 1024 new contexts. We want to leave at least 1/4 of the GGTT available for "important" stuff like scanout buffers, so never open more than 768 fds.
v2: Unconditionally use the lower limit, as suggested by Daniel Vetter Signed-off-by: Oscar Mateo <[email protected]> --- tests/gem_close_race.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/gem_close_race.c b/tests/gem_close_race.c index 6064c02..3a2d847 100644 --- a/tests/gem_close_race.c +++ b/tests/gem_close_race.c @@ -136,7 +136,7 @@ static void run(int child) gem_read(fd, handle, 0, &handle, sizeof(handle)); } -#define NUM_FD 32000 +#define NUM_FD 768 struct thread { pthread_mutex_t mutex; @@ -222,7 +222,7 @@ igt_main } igt_subtest("process-exit") { - igt_fork(child, 2000) + igt_fork(child, NUM_FD) run(child); igt_waitchildren(); } -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
