Adjust memory sizes of persistent histogram allocations.

Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
TBR=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2604433002
Cr-Commit-Position: refs/heads/master@{#441688}
Committed: https://chromium.googlesource.com/chromium/src/+/867f4553745f6106db762b4260397740760aaacf

[bcwhite, 2016-12-22 19:22:29]

Description was changed from

==========
Adjust memory sizes of persistent histogram allocations.

BUG=675600
==========

to

==========
Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
==========

[bcwhite, 2016-12-22 19:22:30]

bcwhite@chromium.org changed reviewers:
+ asvitkine@chromium.org

[Alexei Svitkine (slow), 2017-01-03 19:53:24]

lgtm

[bcwhite, 2017-01-05 16:38:35]

Description was changed from

==========
Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
==========

to

==========
Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
TBR=jochen@chromium.org
==========

[bcwhite, 2017-01-05 16:38:35]

bcwhite@chromium.org changed reviewers:
+ jochen@chromium.org

[bcwhite, 2017-01-05 16:38:46]

The CQ bit was checked by bcwhite@chromium.org

[commit-bot: I haz the power, 2017-01-05 16:39:13]

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, 2017-01-05 17:29:14]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483634326261630, "parent_rev":
"2c16ab44ad1354882c47d7ed49a4c5d77441857b", "commit_rev":
"867f4553745f6106db762b4260397740760aaacf"}

[commit-bot: I haz the power, 2017-01-05 17:29:42]

Description was changed from

==========
Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
TBR=jochen@chromium.org
==========

to

==========
Adjust memory sizes of persistent histogram allocations.

Most subprocesses have very few histograms and so use little of the
memory they are given.  64KiB is a typical minimum allocation, though.

Browser histogram memory usage has increased now that subprocess
histograms are fully merged into the main process.

BUG=675600
TBR=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2604433002
Cr-Commit-Position: refs/heads/master@{#441688}
Committed:
https://chromium.googlesource.com/chromium/src/+/867f4553745f6106db762b426039...
==========

[commit-bot: I haz the power, 2017-01-05 17:29:43]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/867f4553745f6106db762b426039...