commit ab87979a006cedd067b988d1dfd6c617270302d5
author Wei Wang <wvw@google.com> Tue Nov 24 00:26:40 2020 -0800
committer Wei Wang <wvw@google.com> Tue Dec 01 19:46:02 2020 -0800
tree 6ed349bcacba103f53792dd129ef7ea8561f259a
parent 6a28572648bb5573c44a2a33f735ad86a8deb374

Add system-background cpu group

Add system-background cgroup hierarchy for uclamp and cpu bandwidth
tuning.

Bug: 170507876
Bug: 171740453
Test: boot and check cgroup
Change-Id: I41745e7b3ac5c1d7ea7dd77f5db39c6895047446

libprocessgroup/sched_policy.cpp

diff --git a/libprocessgroup/sched_policy.cpp b/libprocessgroup/sched_policy.cpp
index 698e74d..c51ee61 100644
--- a/libprocessgroup/sched_policy.cpp
+++ b/libprocessgroup/sched_policy.cpp
@@ -124,6 +124,8 @@
             return SetTaskProfiles(tid, {"SCHED_SP_FOREGROUND"}, true) ? 0 : -1;
         case SP_TOP_APP:
             return SetTaskProfiles(tid, {"SCHED_SP_TOP_APP"}, true) ? 0 : -1;
+        case SP_SYSTEM:
+            return SetTaskProfiles(tid, {"SCHED_SP_SYSTEM"}, true) ? 0 : -1;
         case SP_RT_APP:
             return SetTaskProfiles(tid, {"SCHED_SP_RT_APP"}, true) ? 0 : -1;
         default:
@@ -258,7 +260,7 @@
      */
     static constexpr const char* kSchedProfiles[SP_CNT + 1] = {
             "SCHED_SP_DEFAULT", "SCHED_SP_BACKGROUND", "SCHED_SP_FOREGROUND",
-            "SCHED_SP_DEFAULT", "SCHED_SP_FOREGROUND", "SCHED_SP_FOREGROUND",
+            "SCHED_SP_SYSTEM",  "SCHED_SP_FOREGROUND", "SCHED_SP_FOREGROUND",
             "SCHED_SP_TOP_APP", "SCHED_SP_RT_APP",     "SCHED_SP_DEFAULT"};
     if (policy < SP_DEFAULT || policy >= SP_CNT) {
         return nullptr;