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Commit 392db573 authored by Tim Murray's avatar Tim Murray
Browse files

Set cpuset from surfaceflinger. 

SurfaceFlinger shouldn't be limited to little cores exclusively, as the
binder threads should be placed on big cores when they are in the
critical path for a RenderThread.

bug 25745866

Change-Id: I9fb65f6d951733f91b4735ff27018411b58b2bfb
parent bc9bc0e0

services/surfaceflinger/Android.mk

+4 −0
Original line number Diff line number Diff line
@@ -122,6 +122,10 @@ LOCAL_LDFLAGS := -Wl,--version-script,art/sigchainlib/version-script.txt -Wl,--e 
LOCAL_CFLAGS := -DLOG_TAG=\"SurfaceFlinger\"

LOCAL_CPPFLAGS := -std=c++11



ifneq ($(ENABLE_CPUSETS),)

    LOCAL_CFLAGS += -DENABLE_CPUSETS

endif



LOCAL_SRC_FILES := \

    main_surfaceflinger.cpp

services/surfaceflinger/main_surfaceflinger.cpp

+7 −0
Original line number Diff line number Diff line
@@ -41,6 +41,13 @@ int main(int, char**) { 


    set_sched_policy(0, SP_FOREGROUND);



#ifdef ENABLE_CPUSETS

    // Put most SurfaceFlinger threads in the system-background cpuset

    // Keeps us from unnecessarily using big cores

    // Do this after the binder thread pool init

    set_cpuset_policy(0, SP_SYSTEM);

#endif



    // initialize before clients can connect

    flinger->init();