From 8d15ede5cc6b66d5176856060b94196bc3382283 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 25 Nov 2019 16:27:37 +0000 Subject: [PATCH] drm/i915: Default to a more lenient forced preemption timeout Based on a sampling of a number of benchmarks across platforms, by default opt for a much more lenient timeout so that we should not adversely affect existing "good" 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 Cc: Joonas Lahtinen Cc: Eero Tamminen Cc: Dmitry Rogozhkin Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20191125162737.2161069-1-chris@chris-wilson.co.uk (cherry picked from commit 5766a5ffc6a69595903865518c43636bde0e4ac4) Signed-off-by: Joonas Lahtinen --- 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 -- 2.30.2