<?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>165550</bug_id>
          
          <creation_ts>2016-12-07 14:29:00 -0800</creation_ts>
          <short_desc>Add system trace points for JavaScript VM entry/exit</short_desc>
          <delta_ts>2016-12-20 16:53:19 -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>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</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>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Simon Fraser (smfr)">simon.fraser</reporter>
          <assigned_to name="Simon Fraser (smfr)">simon.fraser</assigned_to>
          <cc>benjamin</cc>
    
    <cc>cdumez</cc>
    
    <cc>cmarcelo</cc>
    
    <cc>commit-queue</cc>
    
    <cc>dbates</cc>
    
    <cc>ggaren</cc>
    
    <cc>keith_miller</cc>
    
    <cc>mark.lam</cc>
    
    <cc>msaboff</cc>
    
    <cc>saam</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>thorton</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1257372</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2016-12-07 14:29:00 -0800</bug_when>
    <thetext>Add system trace points for JavaScript VM entry/exit</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1257374</commentid>
    <comment_count>1</comment_count>
      <attachid>296425</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2016-12-07 14:29:36 -0800</bug_when>
    <thetext>Created attachment 296425
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1257400</commentid>
    <comment_count>2</comment_count>
      <attachid>296425</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2016-12-07 15:42:26 -0800</bug_when>
    <thetext>Comment on attachment 296425
Patch

Clearing flags on attachment: 296425

Committed r209489: &lt;http://trac.webkit.org/changeset/209489&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1257401</commentid>
    <comment_count>3</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2016-12-07 15:42:32 -0800</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1257739</commentid>
    <comment_count>4</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2016-12-08 10:07:15 -0800</bug_when>
    <thetext>Reverted r209489 for reason:

Likely caused large regressions on JetStream, Sunspider and Speedometer

Committed r209544: &lt;http://trac.webkit.org/changeset/209544&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1259509</commentid>
    <comment_count>5</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2016-12-13 12:44:55 -0800</bug_when>
    <thetext>Reverted r209544 for reason:

Looks like r209489 did not cause the performance regression after all

Committed r209773: &lt;http://trac.webkit.org/changeset/209773&gt;</thetext>
  </long_desc>
      
          <attachment
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              isprivate="0"
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            <attachid>296425</attachid>
            <date>2016-12-07 14:29:36 -0800</date>
            <delta_ts>2016-12-07 15:42:26 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-165550-20161207142857.patch</filename>
            <type>text/plain</type>
            <size>4493</size>
            <attacher name="Simon Fraser (smfr)">simon.fraser</attacher>
            
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