<?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>125948</bug_id>
          
          <creation_ts>2013-12-18 13:59:37 -0800</creation_ts>
          <short_desc>REGRESSION(r153112-r153296): 6-13% on Dromaeo/jslib-traverse-jquery and 4.5~7% on jslib-*-prototype</short_desc>
          <delta_ts>2013-12-20 13:12:07 -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>JavaScriptCore</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>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Ryosuke Niwa">rniwa</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>barraclough</cc>
    
    <cc>fpizlo</cc>
    
    <cc>ggaren</cc>
    
    <cc>mhahnenberg</cc>
    
    <cc>oliver</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>961091</commentid>
    <comment_count>0</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2013-12-18 13:59:37 -0800</bug_when>
    <thetext>https://perf.webkit.org/#mode=charts&amp;chartList=%5B%5B%22mac-lion%22%2C%22Dromaeo%2Fjslib-attr-prototype%3ARuns%22%5D%2C%5B%22mac-mountainlion%22%2C%22Dromaeo%2Fjslib-attr-prototype%3ARuns%22%5D%5D&amp;days=168&amp;zoom=%5B1374149809806.9011%2C1375498325363.4504%5D

http://trac.webkit.org/log/?rev=153296&amp;stop_rev=153112&amp;verbose=on

Appears to be coming from the initial FTL merge.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>961103</commentid>
    <comment_count>1</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2013-12-18 14:15:38 -0800</bug_when>
    <thetext>*** Bug 125949 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>961104</commentid>
    <comment_count>2</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2013-12-18 14:16:48 -0800</bug_when>
    <thetext>Dromaeo/jslib-event-prototype

https://perf.webkit.org/#mode=charts&amp;chartList=%5B%5B%22mac-mountainlion%22%2C%22Dromaeo%2Fjslib-event-prototype%3ARuns%22%5D%2C%5B%22mac-lion%22%2C%22Dromaeo%2Fjslib-event-prototype%3ARuns%22%5D%5D&amp;days=168&amp;zoom=%5B1374309311646.923%2C1374932818839.7363%5D

Dromaeo/jslib-style-prototype

https://perf.webkit.org/#mode=charts&amp;chartList=%5B%5B%22mac-mountainlion%22%2C%22Dromaeo%2Fjslib-style-prototype%3ARuns%22%5D%2C%5B%22mac-lion%22%2C%22Dromaeo%2Fjslib-style-prototype%3ARuns%22%5D%5D&amp;days=227&amp;zoom=%5B1374596496227.0615%2C1374765655445.4568%5D</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>961112</commentid>
    <comment_count>3</comment_count>
    <who name="Ryosuke Niwa">rniwa</who>
    <bug_when>2013-12-18 14:24:57 -0800</bug_when>
    <thetext>Also regressed Dromaeo/jslib-traverse-jquery by 6-13%:

https://perf.webkit.org/#mode=charts&amp;chartList=%5B%5B%22mac-lion%22%2C%22Dromaeo%2Fjslib-traverse-jquery%3ARuns%22%5D%2C%5B%22mac-mountainlion%22%2C%22Dromaeo%2Fjslib-traverse-jquery%3ARuns%22%5D%5D&amp;days=227&amp;zoom=%5B1374296323262.5205%2C1375471806619.7832%5D</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>962016</commentid>
    <comment_count>4</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2013-12-20 13:11:58 -0800</bug_when>
    <thetext>&lt;rdar://problem/15711018&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>962017</commentid>
    <comment_count>5</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2013-12-20 13:12:07 -0800</bug_when>
    <thetext>&lt;rdar://problem/15711019&gt;</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>