All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=678578

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgv-P5rgoM


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8991306484894486896

My code is activated only when taking heap snapshot in devtools.

Uhm you are definitely right.
I'll nudge -1 the regression (there are other v8 changes in the point immediately after).

actually there is a broader regression just before, so this is a dupe of  Issue 678308 .

===== BISECT JOB RESULTS =====
Status: failed


=== Bisection aborted ===
The bisect was aborted because Bisect cannot identify a culprit: Bisect failed to reproduce the regression with enough confidence.
Please contact the the team (see below) if you believe this is in error.

===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N   Good?
chromium@441035  16064045  948700   21  good
chromium@441036  16002085  1300931  21  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 678578

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/browse_social/browse_social_facebook
Relative Change: 0.39%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/1036
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991306484894486896


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  https://chromeperf.appspot.com/bad_bisect?try_job_id=6338206449008640

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