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Commit 73e35540 authored by Wei Wang's avatar Wei Wang
Browse files

Let blkio cgroup follow sched_policy 

This reverts commit e8678cf8.

With b/131214885 resolved, we should reland the change for bg sched group.
If a thread explicitly calls set_sched_policy to set a thread to background, it should not be latency sensitive.

This would help background I/O impacting foreground I/O e.g. b/65727988

Test: build and boot
Bug: 140209629
Change-Id: I218db084fb733cad57af8a5eae926818a6a2cdb8
parent 8c8ce02e

libprocessgroup/sched_policy.cpp

+16 −4
Original line number Diff line number Diff line
@@ -134,15 +134,27 @@ int set_sched_policy(int tid, SchedPolicy policy) { 


    switch (policy) {

        case SP_BACKGROUND:

            return SetTaskProfiles(tid, {"HighEnergySaving", "TimerSlackHigh"}, true) ? 0 : -1;

            return SetTaskProfiles(tid, {"HighEnergySaving", "LowIoPriority", "TimerSlackHigh"},

                                   true)

                           ? 0

                           : -1;

        case SP_FOREGROUND:

        case SP_AUDIO_APP:

        case SP_AUDIO_SYS:

            return SetTaskProfiles(tid, {"HighPerformance", "TimerSlackNormal"}, true) ? 0 : -1;

            return SetTaskProfiles(tid, {"HighPerformance", "HighIoPriority", "TimerSlackNormal"},

                                   true)

                           ? 0

                           : -1;

        case SP_TOP_APP:

            return SetTaskProfiles(tid, {"MaxPerformance", "TimerSlackNormal"}, true) ? 0 : -1;

            return SetTaskProfiles(tid, {"MaxPerformance", "MaxIoPriority", "TimerSlackNormal"},

                                   true)

                           ? 0

                           : -1;

        case SP_RT_APP:

            return SetTaskProfiles(tid, {"RealtimePerformance", "TimerSlackNormal"}, true) ? 0 : -1;

            return SetTaskProfiles(

                           tid, {"RealtimePerformance", "MaxIoPriority", "TimerSlackNormal"}, true)

                           ? 0

                           : -1;

        default:

            return SetTaskProfiles(tid, {"TimerSlackNormal"}, true) ? 0 : -1;

    }