<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>100037</bug_id>
          
          <creation_ts>2012-10-22 15:00:13 -0700</creation_ts>
          <short_desc>PerformanceTests/runner.js should limit output precision in relation to the stddev</short_desc>
          <delta_ts>2012-11-19 10:27:19 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Tools / Tests</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>77037</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Eric Seidel (no email)">eric</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>mjs</cc>
    
    <cc>pdr</cc>
    
    <cc>rniwa</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>747931</commentid>
    <comment_count>0</comment_count>
    <who name="Eric Seidel (no email)">eric</who>
    <bug_when>2012-10-22 15:00:13 -0700</bug_when>
    <thetext>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?</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>