All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=736189

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1peB_QoM


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

chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976029622064871792

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

Suspected Commit
  Author : hans
  Commit : ba2ff9ad0d643a443575c839e56ae9edf7106643
  Date   : Mon Jun 05 02:02:06 2017
  Subject: Revert of "win: Set is_clang=true by default over the weekend."

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : service_worker.service_worker_micro_benchmark
  Metric       : concurrent_10_response_50_percentile/concurrent_10_response_50_percentile
  Change       : 8.86% | 6.21 -> 6.76

Revision             Result                    N
chromium@476914      6.21 +- 0.0620484         6      good
chromium@476918      6.23833 +- 0.0896289      6      good
chromium@476920      6.27167 +- 0.0623164      6      good
chromium@476921      6.74667 +- 0.138323       6      bad       <--
chromium@476927      6.83667 +- 0.141716       6      bad
chromium@476940      6.76 +- 0.104163          6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests service_worker.service_worker_micro_benchmark

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976029622064871792

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5652473882083328


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| / \ | file a bug with component Speed>Bisection.  Thank you!