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No data received for cc_perftests from N5 and N7v2 since 415944 |
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Issue descriptionSee the link to graphs below.
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Sep 20 2016
Also seeing this on nexus 6. Dave any ideas what's happening here?
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Oct 5 2016
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8999611010228886208
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Oct 5 2016
Ping Dave, can you take a look?
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Oct 6 2016
=== Auto-CCing suspected CL author waffles@chromium.org === Hi waffles@chromium.org, the bisect results pointed to your CL below as possibly causing a regression. Please have a look at this info and see whether your CL be related. ===== BISECT JOB RESULTS ===== Status: completed ===== SUSPECTED CL(s) ===== Subject : Fix component-installer-controlled Flash path. Author : waffles Commit description: BUG=627959 Review-Url: https://codereview.chromium.org/2150573004 Cr-Commit-Position: refs/heads/master@{#405419} Commit : 3436cd4cbccb4c573185e2faefc248727e1baecb Date : Thu Jul 14 02:50:17 2016 ===== TESTED REVISIONS ===== Revision Mean Std Dev N Good? chromium@405407 242062 618.351 5 good chromium@405415 244173 2701.17 5 good chromium@405417 244409 1678.49 5 good chromium@405418 243566 1175.4 5 good chromium@405419 259426 1457.69 5 bad <-- chromium@405423 257053 3446.54 5 bad chromium@405439 258800 2347.41 5 bad Bisect job ran on: winx64_zen_perf_bisect Bug ID: 645600 Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests page_cycler.intl_ar_fa_he Test Metric: vm_working_set_final_size_total/http___www.startimes.com_f.aspx Relative Change: 6.91% Score: 99.9 Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64_zen_perf_bisect/builds/529 Job details: https://chromeperf.appspot.com/buildbucket_job_status/8999611010228886208 Not what you expected? We'll investigate and get back to you! https://chromeperf.appspot.com/bad_bisect?try_job_id=5804460775833600 | 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 Tests>AutoBisect. Thank you!
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Oct 11 2016
I am confused about what this bisect was intended to accomplish; the original issue appears to be something about Android but the bisect was on winx64. Additionally, 415944 is way after 405419; is 405419 really a candidate for whatever issue this is? Either way, that CL should not affect Android, although it is known to change our perf test baselines because it affected how our test infra handles Flash (e.g. actually running the plugin, instead of displaying a plugin placeholder). We don't do Flash on Android, so seems unlikely this bisect is giving us the information we're after. Assuming that's all a correct understanding, assigning back to rschoen for further triage.
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Nov 24 2016
Ryan, I can't find where a regression occurred. In every graph, this is a progression. Also, based on comment #6, the revision range for the bisect was incorrect.
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Aug 16 2017
We've removed data stoppage alerts. |
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Comment 1 by rsch...@chromium.org
, Sep 9 2016