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Issue 755231 link

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Issue metadata

Status: Duplicate
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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49%-4782.3% regression in system_health.memory_mobile at 493151:493555

Project Member Reported by fmea...@chromium.org, Aug 14 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 14 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755231

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a6540fb3cd914340b9aa732dcd6a2200df1d55f066a1124fd4577b16cc552b21


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

android-nexus5X
android-one
chromium-rel-mac12
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 14 2017

Mergedinto: 754810
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Eric Karl
  Commit : dd8208f70e44b269eb09d26e506f79f9c1d2eefb
  Date   : Thu Aug 10 20:34:31 2017
  Subject: Reduce GPU image cache to 512KB

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/load_search/load_search_google
  Change       : 4740.05% | 11556.0 -> 559316.0

Revision             Result              N
chromium@493218      11556.0 +- 0.0      6      good
chromium@493387      11556.0 +- 0.0      6      good
chromium@493471      11556.0 +- 0.0      6      good
chromium@493513      11556.0 +- 0.0      6      good
chromium@493524      11556.0 +- 0.0      6      good
chromium@493525      11556.0 +- 0.0      6      good
chromium@493526      559316 +- 0.0       6      bad       <--
chromium@493527      559316 +- 0.0       6      bad
chromium@493529      559316 +- 0.0       6      bad
chromium@493534      559316 +- 0.0       6      bad
chromium@493555      559316 +- 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-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.search.google 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/8971261345934745312


For feedback, file a bug with component Speed>Bisection

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