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libutils: use system_background for low prio tasks in framework

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Bug: 201428466
Test: Build and boot check system_server's sched group
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: Iffc47fdaf3ef8fba6eb01a12cf534a0393e3e91c
This commit is contained in:
Wei Wang 2021-09-29 15:35:58 -07:00
parent 0b23b2a346
commit c39d60d114
1 changed files with 4 additions and 2 deletions
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6
libutils/Threads.cpp
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@ -86,8 +86,10 @@ struct thread_data_t {
// A new thread will be in its parent's sched group by default,
// so we just need to handle the background case.
// currently set to system_background group which is different
// from background group for app.
if (prio >= ANDROID_PRIORITY_BACKGROUND) {
SetTaskProfiles(0, {"SCHED_SP_BACKGROUND"}, true);
SetTaskProfiles(0, {"SCHED_SP_SYSTEM"}, true);
}
if (name) {
@ -313,7 +315,7 @@ int androidSetThreadPriority(pid_t tid, int pri)
}
if (pri >= ANDROID_PRIORITY_BACKGROUND) {
rc = SetTaskProfiles(tid, {"SCHED_SP_BACKGROUND"}, true) ? 0 : -1;
rc = SetTaskProfiles(tid, {"SCHED_SP_SYSTEM"}, true) ? 0 : -1;
} else if (curr_pri >= ANDROID_PRIORITY_BACKGROUND) {
SchedPolicy policy = SP_FOREGROUND;
// Change to the sched policy group of the process.