tree 1fae04f161df337a1d650eb330f37ff7af75fd87
parent 5d678da3d692c37fbf4900f7f60d8bff2f097b16
author Josh Lehan <krellan@google.com> 1604744049 -0800
committer Josh Lehan <krellan@google.com> 1668575212 -0800

Adding new feature of core PID loop logging

This differs from the normal logging,
as this focuses on the core of the PID loop computations.

All variables within the core pid/ec/pid.cpp pid()
function are now logged, so math can be debugged.

Output is throttled to only log a new line
when it changes, or when 60 seconds have elapsed.

Creates 2 files for each PID loop,
one showing coefficients that were configured for it,
and one showing the variables changing over time.

Enable by --corelogging command line option,
or by creating /etc/thermal.d/corelogging file.

Tested:
Log files appear as expected, when enabled.
No changes noticed, when this feature is disabled.

Signed-off-by: Josh Lehan <krellan@google.com>
Change-Id: I3f37fe918e7cbc6fb885ffa2f268600d5a317d32