tree 710920f227100d60e8edd312acdcd79c804d152e
parent b52c694036cc077b0fc7935d8e0b4181dbdd3bd5
author Fadi Meawad <fmeawad@google.com> 1544134452 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1548891956 +0000

[tracing] Reland "Make TRACE_DURATION use trace duration complete events"

This is a reland of a3b4302f688a1b0c2d62d41883a4a44a465169fb

This CL was reverted due to lack of support in measure.
The measure library support was added in:
https://fuchsia-review.googlesource.com/c/garnet/+/246312

TEST: The garnet-*-perf-* bot was failing before the support was added, but now it is green.

PT-72 #done

Original change's description:
> [tracing] Make TRACE_DURATION use trace duration complete events
>
> ... instead of a start and end events. Saving ~50% in buffer and JSON
> sizes.
>
> There is no noticeable change in performance for NTRACE, tracing
> disabled, category disabled and tracing enabled.
>
> The compiled code size is less than or nearly equal the old version for 4
> or less arguments but it is bigger for 8 arguments and more, issue
> tracked in PT-87.
>
> TEST: fx shell /system/test/sys/trace-test
> TEST: fx shell trace-benchmark
>
> PT-72 #done

Change-Id: I21510f2ffd1b7d79a622927bc999ce8cb9375396