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Issue 713103 link

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Issue metadata

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

Blocked on:
issue 713149



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34.3%-38.3% regression in system_health.common_mobile at 463395:464059

Project Member Reported by alexclarke@chromium.org, Apr 19 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=713103

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggr3ouAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_Lu8rQsM


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

android-nexus5X
android-webview-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 19 2017

Mergedinto: 711366
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : yosin
  Commit : e14aacd2baf5cf9c4a5e457384e0b0f73c0163c4
  Date   : Tue Apr 11 08:33:37 2017
  Subject: Get rid of computeVisibleSelectionInDOMTreeDeprecated() in InputMethodController::textInputType() and textInputInfo()

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/background_news/background_news_nytimes
  Change       : 34.69% | 433.7285 -> 584.197833333

Revision             Result                  N
chromium@463560      433.729 +- 40.6092      6      good
chromium@463569      410.663 +- 46.1886      6      good
chromium@463573      419.963 +- 62.2959      6      good
chromium@463574      412.678 +- 48.8757      6      good
chromium@463575      592.351 +- 63.5916      6      bad       <--
chromium@463577      576.493 +- 90.3032      6      bad
chromium@463594      584.198 +- 104.094      6      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=background.news.nytimes system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981888242261558496

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5887457289043968


| 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!
Blockedon: 713149

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