All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=754635

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5d5cb07b6e5e0b10bf22346478ed7f4bd6cf825a0b1a75b1fa5432ae7df9da93


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971563550432656992

=== BISECT JOB RESULTS ===
Perf regression found but unable to continue

Bisect was stopped because a commit couldn't be classified as either
good or bad.


Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_max/browse_news/browse_news_washingtonpost

Revision             Result                   N
chromium@491494      11183345 +- 1667312      21      good
chromium@491553      11327270 +- 3211668      21      unknown
chromium@491611      12386322 +- 6281968      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.washingtonpost v8.browsing_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971563550432656992


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971545239655665792

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_max/browse_news/browse_news_washingtonpost

Revision             Result                   N
chromium@491494      11236457 +- 2536358      21      good
chromium@491611      12585961 +- 6426088      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.washingtonpost v8.browsing_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971545239655665792


For feedback, file a bug with component Speed>Bisection

Regression is just a return to state at point id 489894.