All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=863900

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=3bbb953be75c25e21aa9d4bc1fb2637c0d4c6e0a1b5b8ecc90f6953b22a5d38f


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

health-plan-clankium-phone
health-plan-webview-low-end-phone
health-plan-webview-phone
perf-go-phone-1024
perf-go-phone-512
perf-go-webview-phone
perf-monochrome-n-phone

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8940834099699594416

=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: webview-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/browse_social/browse_social_facebook_infinite_scroll


Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook.infinite.scroll system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8940834099699594416


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8940213703195427680

This is a pretty widespread and large regression. Let's try to figure out if it's intended.

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

Suspected Commit
  Author : Khushal
  Commit : 81a71217973e595b574783c2496629311051450f
  Date   : Mon Jul 09 22:48:23 2018
  Subject: gpu: Add memory tracing for ServiceTransferCache.

Bisect Details
  Configuration: clankium-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/load_media/load_media_imgur
  Change       : 5049.70% | 2108620.0 -> 108587576.0

Revision                                       Result                N
android-chrome@96555ff9c3                      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573466      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573486      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573491      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573494      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573495      2108620 +- 0.0        6      good
android-chrome@96555ff9c3,chromium@573496      108587576 +- 0.0      6      bad       <--
android-chrome@96555ff9c3,chromium@573506      108587576 +- 0.0      6      bad
android-chrome@96555ff9c3,chromium@573545      108587576 +- 0.0      6      bad
android-chrome@0c23a72c68                      108587576 +- 0.0      6      bad
android-chrome@7b94b395a3                      108587576 +- 0.0      6      bad
android-chrome@cd63705090                      108587576 +- 0.0      6      bad
android-chrome@cb4b582a48                      108587576 +- 0.0      6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chrome --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.media.imgur system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8940213703195427680


For feedback, file a bug with component Speed>Bisection