tree e1ac420b5364e4c9850b0547dfc95e706e9477bd
parent d4806f80d8a1c0fcd853678dfea5bae45fcb38c1
author Kelvin Zhang <zhangkelvin@google.com> 1671481661 -0800
committer Kelvin Zhang <zhangkelvin@google.com> 1671492976 -0800

Throttle metric writing by 3 seconds

After aosp/2320000 , pref writes are atomic but slower. Since
update_engine frequently writes metrics such as bytes downloaded to
disk, update time is negatively impacted. Throttle metric writing to
mitigate.

Bug: 259174530
Test: th
Change-Id: I09be219fa08d5569a5cb5b808e07da3d71a8131c