Stack sampling profiler: update to 10% full disable experiment

Stack sampling profiler: update to 10% full disable experiment

Stability and performance numbers from the current 50% GPU process enable rate
look good. Move on to the third experiment configuration in the associated bug,
to test performance impact of enabling the profiler for both GPU and browser
processes vs. enabling for neither process.

This CL deviates from the roll out percentages in the bug by performing the
experiment on 10% of launches rather than 50%. The experiment will be enabled
over the holiday period, so the lower percentage will provide enough data while
minimizing data volume differences for the browser process.

BUG=650869
Committed: https://crrev.com/d3dd30380494ceec5e7d5737cb5387ea75f431b9
Cr-Commit-Position: refs/heads/master@{#437936}

[Mike Wittman, 2016-12-12 19:26:47]

wittman@chromium.org changed reviewers:
+ thakis@chromium.org

[Mike Wittman, 2016-12-12 19:26:49]

Hi Nico, please take a look.

[Nico, 2016-12-12 20:13:20]

rs-lgtm

[Mike Wittman, 2016-12-12 20:15:11]

The CQ bit was checked by wittman@chromium.org

[commit-bot: I haz the power, 2016-12-12 20:16:37]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-12 22:41:18]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481573711284420, "parent_rev":
"8d9727e8bcb51a3bc82696895f25cff6d473d356", "commit_rev":
"d011c612bc476eb2f4a1551af45cbf144431f30d"}

[commit-bot: I haz the power, 2016-12-12 22:41:49]

Description was changed from

==========
Stack sampling profiler: update to 10% full disable experiment

Stability and performance numbers from the current 50% GPU process enable rate
look good. Move on to the third experiment configuration in the associated bug,
to test performance impact of enabling the profiler for both GPU and browser
processes vs. enabling for neither process.

This CL deviates from the roll out percentages in the bug by performing the
experiment on 10% of launches rather than 50%. The experiment will be enabled
over the holiday period, so the lower percentage will provide enough data while
minimizing data volume differences for the browser process.

BUG=650869
==========

to

==========
Stack sampling profiler: update to 10% full disable experiment

Stability and performance numbers from the current 50% GPU process enable rate
look good. Move on to the third experiment configuration in the associated bug,
to test performance impact of enabling the profiler for both GPU and browser
processes vs. enabling for neither process.

This CL deviates from the roll out percentages in the bug by performing the
experiment on 10% of launches rather than 50%. The experiment will be enabled
over the holiday period, so the lower percentage will provide enough data while
minimizing data volume differences for the browser process.

BUG=650869

Review-Url: https://codereview.chromium.org/2571483003
==========

[commit-bot: I haz the power, 2016-12-12 22:41:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-12 22:45:42]

Description was changed from

==========
Stack sampling profiler: update to 10% full disable experiment

Stability and performance numbers from the current 50% GPU process enable rate
look good. Move on to the third experiment configuration in the associated bug,
to test performance impact of enabling the profiler for both GPU and browser
processes vs. enabling for neither process.

This CL deviates from the roll out percentages in the bug by performing the
experiment on 10% of launches rather than 50%. The experiment will be enabled
over the holiday period, so the lower percentage will provide enough data while
minimizing data volume differences for the browser process.

BUG=650869

Review-Url: https://codereview.chromium.org/2571483003
==========

to

==========
Stack sampling profiler: update to 10% full disable experiment

Stability and performance numbers from the current 50% GPU process enable rate
look good. Move on to the third experiment configuration in the associated bug,
to test performance impact of enabling the profiler for both GPU and browser
processes vs. enabling for neither process.

This CL deviates from the roll out percentages in the bug by performing the
experiment on 10% of launches rather than 50%. The experiment will be enabled
over the holiday period, so the lower percentage will provide enough data while
minimizing data volume differences for the browser process.

BUG=650869

Committed: https://crrev.com/d3dd30380494ceec5e7d5737cb5387ea75f431b9
Cr-Commit-Position: refs/heads/master@{#437936}
==========

[commit-bot: I haz the power, 2016-12-12 22:45:42]

Patchset 1 (id:??) landed as
https://crrev.com/d3dd30380494ceec5e7d5737cb5387ea75f431b9
Cr-Commit-Position: refs/heads/master@{#437936}