Closed
Bug 1370961
Opened 8 years ago
Closed 1 year ago
Benchmark.js patterned high margin of error
Categories
(Core :: JavaScript Engine, defect, P3)
Tracking
()
RESOLVED
INCOMPLETE
People
(Reporter: timolawl, Unassigned)
Details
(Keywords: triage-deferred)
Attachments
(1 file)
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246.04 KB,
image/png
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Details |
firefox variance.PNG
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170605125726
Steps to reproduce:
Spawn a webworker to run benchmark.js and compare the performance of two test cases.
Actual results:
Benchmark.js test case margin of error is extremely high for the first test if both test cases are the same. If the tests differ (i.e., the first test is slower), then the high variance seems to shift to the second test.
Expected results:
Variance should be roughly the same at low values. This is the result in Firefox 53. In the attached image, Firefox 54 is on the main window on the left, and Firefox 53 is the result on the right.
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Updated•8 years ago
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Component: Untriaged → JavaScript Engine
Product: Firefox → Core
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Updated•8 years ago
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Keywords: triage-deferred
Priority: -- → P3
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Updated•3 years ago
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Severity: normal → S3
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Updated•1 year ago
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Status: UNCONFIRMED → RESOLVED
Closed: 1 year ago
Resolution: --- → INCOMPLETE
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Description
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