All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=871588

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9fa6cf892444591db80b4eb8169d0b3a6b44edeee63ecb85e77317c2c6fd0d00


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

mac-10_13_laptop_high_end-perf

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/15ecbd0c640000

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/15ecbd0c640000

HTTP status code 401: Login Required

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14c8a064640000

📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/14c8a064640000

Use 10 threads instead of 1 while uploading screenshots by meacer@chromium.org
https://chromium.googlesource.com/chromium/src/+/e81e468d66fb5e2b33470a2a16beeb49d702b99b
309.3 → 124.6 (-184.8)

Roll src/third_party/perfetto 37a1543bfe3a..c2ace4e71f59 (1 commits) by perfetto-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com
https://chromium.googlesource.com/chromium/src/+/8647e112dfa418f20f6ab128985c5be4256d0be3
124.6 → 184.5 (+59.87)

Delay audio service launch on the browser startup. by olka@chromium.org
https://chromium.googlesource.com/chromium/src/+/eab3705f9a20d53fc2cdb1a6ad447562aa24ae5b
186.2 → 208.5 (+22.3)

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

Hi Fredrik,

Could you please assign this to someone who can help since Olka is OOO? Thanks

Max is back on Monday 8/20. Ping back if you think this is more urgent.

Fixed by the revert: https://chromium.googlesource.com/chromium/src/+/ad431de21f242b69619733b9a208415bb18a8dd4.