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Issue 798350 link

Starred by 1 user
Status: Assigned
Owner:
yangguo@chromium.org
Cc:
yangguo@chromium.org
█ alexclarke@chromium.org
u...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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16.3%-17.3% regression in blink_perf.bindings at 526242:526264

Project Member Reported by alexclarke@chromium.org, Jan 2 2018 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jan 2 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=798350

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=71cbd0a3e6bc94ee06b47ff2c6d68ded00b2b23fc75a9c3efd43e35319e24940


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jan 2 2018 


=== BISECT JOB RESULTS ===
NO Perf regression found, tests failed to produce values

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : first-child/first-child


Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.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 blink_perf.bindings

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8958517048573009920


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Jan 3 2018 


=== BISECT JOB RESULTS ===
NO Perf regression found, tests failed to produce values

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : node-type/node-type


Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.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 blink_perf.bindings

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8958424092528574704


For feedback, file a bug with component Speed>Bisection

Comment 7 by sullivan@chromium.org, Jan 25 2018 

Re-bisecting to see if pinpoint encounters the same issue.
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jan 27 2018

Cc: u...@chromium.org yangguo@chromium.org
Owner: yangguo@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint.chromeperf.appspot.com/job/14f16442840000

Reduce max instance type enum value.
By yangguo@chromium.org · Fri Dec 22 19:08:18 2017
v8 @ c8736f689967c38afe940baa7839cc0b4afd888c

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
►

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