All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=605132

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxJ6GsQkM


Bot(s) for this bug's original alert(s):

linux-release

=== Auto-CCing suspected CL author eae@chromium.org ===

Hi eae@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Revert "Segment strings on dot and comma in addition to space and tab"
Author  : eae
Commit description:
  
Revert r386022 (commit 63f4a420e42667f2167b7fcf4a9ac8e10f66e792) as the
anticipated performance win from the speculative change didn't pan out.

BUG= 593679 
TBR=lushnikov@chromium.org

Review URL: https://codereview.chromium.org/1884463005

Cr-Commit-Position: refs/heads/master@{#388291}
Commit  : 72e9e09a5a7c36eb6d8eda68a9eda1757eda3294
Date    : Tue Apr 19 20:09:54 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@388273         50.784344   0.952679    5           good
chromium@388285         51.667869   0.802413    5           good
chromium@388288         51.196878   1.409769    5           good
chromium@388290         51.746931   0.526803    5           good
chromium@388291         34.680641   1.257687    5           bad         <-
chromium@388297         34.685843   0.575425    5           bad

Bisect job ran on: linux_perf_bisect
Bug ID: 605132

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.layout
Test Metric: flexbox-lots-of-data/flexbox-lots-of-data
Relative Change: 31.70%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_bisect/builds/6447
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9014850812172959408


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=605132

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

This reverted an optimization that we decided not to proceed with as it has unintended side-effects.