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* [PATCH] drm/i915: Default to more lenient force preempt timeout
@ 2019-11-25 16:27 Chris Wilson
  2019-11-25 16:27 ` [Intel-gfx] " Chris Wilson
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Chris Wilson @ 2019-11-25 16:27 UTC (permalink / raw)
  To: intel-gfx; +Cc: Eero Tamminen

Based on a sampling of a number of benchmarks across platforms, by
default opt for a more much lenient timeout so that we should not
adversely affect existing clients.

640ms ought to be enough for anyone.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112169
Fixes: 3a7a92aba8fb ("drm/i915/execlists: Force preemption")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Cc: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
---
 drivers/gpu/drm/i915/Kconfig.profile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile
index 1799537a3228..c280b6ae38eb 100644
--- a/drivers/gpu/drm/i915/Kconfig.profile
+++ b/drivers/gpu/drm/i915/Kconfig.profile
@@ -25,7 +25,7 @@ config DRM_I915_HEARTBEAT_INTERVAL
 
 config DRM_I915_PREEMPT_TIMEOUT
 	int "Preempt timeout (ms, jiffy granularity)"
-	default 100 # milliseconds
+	default 640 # milliseconds
 	help
 	  How long to wait (in milliseconds) for a preemption event to occur
 	  when submitting a new context via execlists. If the current context
-- 
2.24.0

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^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2019-11-26 14:22 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-11-25 16:27 [PATCH] drm/i915: Default to more lenient force preempt timeout Chris Wilson
2019-11-25 16:27 ` [Intel-gfx] " Chris Wilson
2019-11-25 17:52 ` ✗ Fi.CI.BAT: failure for " Patchwork
2019-11-25 17:52   ` [Intel-gfx] " Patchwork
2019-11-26  9:32 ` [PATCH] " Tvrtko Ursulin
2019-11-26  9:32   ` [Intel-gfx] " Tvrtko Ursulin
2019-11-26 14:14   ` Joonas Lahtinen
2019-11-26 14:14     ` [Intel-gfx] " Joonas Lahtinen
2019-11-26 14:22     ` Chris Wilson
2019-11-26 14:22       ` [Intel-gfx] " Chris Wilson

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