commit bf5a070cd2d9bf8097df785e875470ecc8fa0101
author Florian Mayer <fmayer@google.com> Wed Apr 03 12:12:41 2019 +0100
committer Florian Mayer <fmayer@google.com> Wed Apr 03 12:12:41 2019 +0100
tree a4d87b4943f2906f7588b4558ed78b7e2c3f4cca
parent acc0f14924cf9a804b19c3df1881f441487436a9

Run in foreground cpuset.

Change-Id: I4434192eb5c7ab7fc24c6d8dee3d5f997a54544f
Bug: 126724929

heapprofd.rc

diff --git a/heapprofd.rc b/heapprofd.rc
index db4d836..2e69f60 100644
--- a/heapprofd.rc
+++ b/heapprofd.rc
@@ -17,7 +17,9 @@
     socket heapprofd stream 0666 root root
     user nobody
     group nobody readproc
-    writepid /dev/cpuset/system-background/tasks
+    # By default, this  daemon is idle. When profiling an app, we should unwind
+    # as fast as possible in the interest of the app being profiled.
+    writepid /dev/cpuset/foreground/tasks
     onrestart exec_background - nobody shell -- /system/bin/heapprofd --cleanup-after-crash
     # DAC_READ_SEARCH is denied by SELinux on user builds because the SELinux
     # permission is userdebug_or_eng only.