On Fri, Dec 13, 2013 at 04:24:37PM +0000, [email protected] wrote:
> 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]>
Merged, thanks for the patch. And --in-reply-to preferred for resending
;-)
-Daniel
> ---
> 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
>
> _______________________________________________
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--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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