Bug 100037

Summary: PerformanceTests/runner.js should limit output precision in relation to the stddev
Product: WebKit Reporter: Eric Seidel (no email) <eric>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: mjs, pdr, rniwa
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 77037    

Description Eric Seidel (no email) 2012-10-22 15:00:13 PDT 
PerformanceTests/runner.js should limit output precision in relation to the stddev

e.g.

avg 95.18194456386033 runs/s
median 95.1814733027575 runs/s
stdev 0.22485624887911804 runs/s
min 94.7867298578199 runs/s
max 95.4653937947494 runs/s

It seems silly to output to 15 digits when the stddev says at best 4 of those are useful.

Maybe keying off the stddev is incorrect and we should just output only 4 digits anyway?