All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=732298

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgluT9zAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg5s-vlgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1pyj_AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglprXqwkM


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

linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977001948417235648

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : hpayer
  Commit : cf8f7bdc9d5ee314a10fe043e421ec95604d4eca
  Date   : Wed Jun 07 13:21:28 2017
  Subject: [heap] Increase memory reducer activation limit for external memory changes.

Bisect Details
  Configuration: linux_perf_bisect
  Benchmark    : v8.infinite_scroll_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_max/tumblr
  Change       : 7.20% | 49288578.6667 -> 52837286.6667

Revision                           Result                  N
chromium@477645                    49288579 +- 387254      6      good
chromium@477662                    49266991 +- 137719      6      good
chromium@477670                    49348928 +- 390449      6      good
chromium@477674                    49588551 +- 977621      6      good
chromium@477676                    49288135 +- 360167      6      good
chromium@477677                    49292573 +- 453240      6      good
chromium@477677,v8@f2cd359ac9      49498732 +- 986556      6      good
chromium@477677,v8@d2066154c8      49158161 +- 410576      6      good
chromium@477677,v8@cf8f7bdc9d      52867412 +- 241245      6      bad       <--
chromium@477678                    52902759 +- 368990      6      bad
chromium@477711                    53049217 +- 883012      6      bad
chromium@477776                    52837287 +- 436240      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=tumblr v8.infinite_scroll_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977001948417235648

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6448632926044160


| 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 Speed>Bisection.  Thank you!