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Issue 893838 link

Starred by 1 user
Status: WontFix
Owner:
kouhei@chromium.org
Closed: Nov 1
Cc:
kouhei@chromium.org
m...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4% regression in system_health.common_desktop at 596087:596109

Project Member Reported by m...@chromium.org, Oct 9 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 9 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=893838

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e4211fdfdbd016e8a583a8116fe33284653ef519f40dd00445d70c8fe59df570


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

linux-perf

system_health.common_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 10

Cc: kouhei@chromium.org
Owner: kouhei@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/13b107d8e40000

Add UMA for SignedExchange certchain fetch time by kouhei@chromium.org
https://chromium.googlesource.com/chromium/src/+/20f5c0c639835693730e7eebded3332891c7d756
cpu_time_percentage: 0.3025 → 0.3144 (+0.0119)

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

Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

Comment 5 by kouhei@google.com, Oct 22 

The CL only affects SXG cert fetch path, which is behind the flag.
Reran bisect.
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Oct 22 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/1492051ae40000

Comment 7 by kouhei@google.com, Nov 1

Status: WontFix (was: Assigned)
Can't repro.
►

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