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Issue 826667 link

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Issue metadata

Status: WontFix
Owner:
Closed: Mar 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 3
Type: Bug



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API regression

Project Member Reported by cbruni@chromium.org, Mar 28 2018

Issue description

Comment 1 by cbruni@chromium.org, Mar 28 2018

Cc: cbruni@google.com
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 28 2018

Cc: dproy@chromium.org benjhayden@chromium.org
Owner: dproy@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14cb8007440000

Get navigation info without using FrameLoader snapshots by dproy@chromium.org
https://chromium.googlesource.com/catapult/+/5d35a2c7122c1ac4a9a37e7743a19f628f25a38b

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

Comment 4 by dproy@chromium.org, Mar 29 2018

Status: WontFix (was: Assigned)
From what I understand, for the previous few builds, TTI was not being detected, and therefore only slices upto DOMContentLoaded [1] was counted in API:duration. After that change, TTI was detected again, slices upto TTI were counted, and it was obviously a bigger range and thus had bigger duration.

Marking as WontFix. Reopen if you believe otherwise.

[1]" https://cs.chromium.org/chromium/src/third_party/catapult/tracing/tracing/metrics/v8/runtime_stats_metric.html?l=157&rcl=9e3d4c4b70e0407995dc013e1cd8a92892f18c22

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