All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=865868

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d5b7df7236abe42986e40790d713b37b4532ac178b8e2fb9ca8700d7fbb23da7


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

health-plan-clankium-low-end-phone
health-plan-clankium-phone
health-plan-webview-phone
perf-go-phone-1024
perf-go-webview-phone

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8940499360278260848

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: INFRA_FAILURE

The bisect was able to narrow the range, you can try running with:
  good_revision: 4a9d09e563df548cea6a3ad93a7c4f293a8f7633
  bad_revision : 21289d5be9936171c5ed5d8a0c8e7ed361f971f1

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: clankium-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_media/load_media_facebook_photos
  Change       : 13.71% | 2874810.0 -> 3268905.33333

Revision                                       Result                  N
android-chrome@74662f91c8                      2874810 +- 31622.4      6      good
android-chrome@74662f91c8,chromium@575926      2845809 +- 856.929      6      good
android-chrome@74662f91c8,chromium@575929      2859044 +- 13582.1      6      good
android-chrome@74662f91c8,chromium@575930      3259894 +- 13668.2      6      bad
android-chrome@74662f91c8,chromium@575931      3269243 +- 20320.0      6      bad
android-chrome@74662f91c8,chromium@575935      3264001 +- 14147.8      6      bad
android-chrome@1032e70048                      3260038 +- 6687.84      6      bad
android-chrome@4e67b217c5                      3281519 +- 13629.2      6      bad
android-chrome@22c1f49355                      3268905 +- 24458.9      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.facebook.photos 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/8940499360278260848


For feedback, file a bug with component Speed>Bisection

Manually duping as 

  46a78fb Revert "[embedded-builtins] Enable on all arches except x86 for benchmarks" by Sigurd Schneider

is in the roll and the symptoms fit.