[Webkit-unassigned] [Bug 249340] New: [ews] Optimization to reduce number of results database lookups

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249340

            Bug ID: 249340
           Summary: [ews] Optimization to reduce number of results
                    database lookups
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aakash_jain at apple.com

When there are lot of test failures, we consult results db for every failure. However, we can bypass the retry logic only if ALL the test failures are pre-existing. If even one failure is not pre-existing, we can't benefit from results database lookups. So, we can optimize the number of results database calls, by skipping consulting results-db for further tests the moment we know that one of the test failure is not pre-existing.

Number of test failures (and resulting number of results db calls) can be lot for some queues, e.g.: 170 on GTK-WK2-Tests-EWS queue in https://ews-build.webkit.org/#/builders/35/builds/34489/steps/23/logs/test-failures . Even on mac/ios queue it can be upto 60 failures (after https://commits.webkit.org/257442@main). So this change would help reduce unnecessary results database calls in those cases.

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