commit 18f1bf8826af12be50a65f6b08dc740966b823eb
author Misha Wagner <mishaw@google.com> Wed Oct 20 13:25:34 2021 +0100
committer Misha Wagner <mishaw@google.com> Fri Nov 05 14:17:12 2021 +0000
tree c6991032c906f57e2405541a28af439f483d33d5
parent d31d4472249d8b067b12cc2f3445e7482337365e

Add ATRACE calls to Adaptive CPU.

This allows us to measure the performance of Adaptive CPU with Perfetto
traces (with power or hal tags enabled).

I've collected some traces of Adaptive CPU running on a raven:
- Average duration of the RunMainLoop_compute code is ~400-500us.
- Enabling tracing increases runtime by ~10%.
- Enabling debug logging increases runtime by ~20%.
- Adding disabled ATRACE calls does not seem to impact runtime.

Test: manual inspection of traces
Bug: 188770301
Change-Id: Ib0313eaff7c1a9bf06f3acab8478d5f9d72cb476