commit af989d5a5d42d9c43f93c3197d1ced659046b289
author Victor Hsieh <victorhsieh@google.com> Tue Jan 25 13:59:50 2022 -0800
committer Victor Hsieh <victorhsieh@google.com> Tue Jan 25 17:02:49 2022 -0800
tree e7bbdd80c45b47c2de0868538031745517e3cdea
parent 7cce6d43739b41392139587882040f79e8a87bb9

Allow CompOS VM to use all CPUs by default

In early boot, if dalvik.vm.boot-dex2oat-threads is not specified,
dex2oat will run in #CPU threads.

Currently, we're still using one CPU in the VM if
dalvik.vm.boot-dex2oat-threads not specified. This change gives the VM
the same number of CPUs, which will allow dex2oat to leverage all CPUs.

Bug: 197358423
Test: Run `composd_cmd staged-apex-compile` on oriole
      # Before: ~90s
      # After:  ~60s
Test: enable adb, check /proc/cpuinfo
Change-Id: Ifb8908ab44eacf42960f6e4d9b12edca6370d594

compos/composd/Android.bp

diff --git a/compos/composd/Android.bp b/compos/composd/Android.bp
index 3b545e5..55a3107 100644
--- a/compos/composd/Android.bp
+++ b/compos/composd/Android.bp
@@ -18,6 +18,7 @@
         "libcompos_common",
         "libcomposd_native_rust",
         "libminijail_rust",
+        "libnum_cpus",
         "libnix",
         "liblibc",
         "liblog_rust",