tree 991df17e1290852c2706a3688295daae0bfd367a
parent c3983c9134dd37cd36fa9ea37aa91b08fa7b9c56
author Connor O'Brien <connoro@google.com> 1551483630 -0800
committer Connor O'Brien <connoro@google.com> 1552008448 +0000

ANDROID: cpufreq: times: don't copy invalid freqs from freq table

Invalid frequency checks are a bottleneck in reading
/proc/uid_time_in_state, but there's no reason to include invalid
frequencies in our local copies of frequency tables. Revise
cpufreq_times_create_policy() to only copy valid frequencies, and
eliminate all the checks this change makes unnecessary.

Bug: 111216804
Test: cat /proc/uid_time_in_state & confirm values & format are sane
Test: /proc/uid_time_in_state read times reduced by ~40%
Change-Id: Ib71f002c9dddb8458ba088d73ba61b49deb72b1c
Signed-off-by: Connor O'Brien <connoro@google.com>