<?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>107678</bug_id>
          
          <creation_ts>2013-01-23 05:19:31 -0800</creation_ts>
          <short_desc>[chromium] Web Inspector: show when a vblank period is missed</short_desc>
          <delta_ts>2013-04-05 13:01:49 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Web Inspector (Deprecated)</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>WONTFIX</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Enhancement</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>107665</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Paul Lewis">aerotwist</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>apavlov</cc>
    
    <cc>keishi</cc>
    
    <cc>loislo</cc>
    
    <cc>paulirish</cc>
    
    <cc>pfeldman</cc>
    
    <cc>pmuellr</cc>
    
    <cc>vsevik</cc>
    
    <cc>web-inspector-bugs</cc>
    
    <cc>yurys</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>814128</commentid>
    <comment_count>0</comment_count>
    <who name="Paul Lewis">aerotwist</who>
    <bug_when>2013-01-23 05:19:31 -0800</bug_when>
    <thetext>It would be helpful to provide insight into when the vblank period has been missed and a frame had to be skipped.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>815313</commentid>
    <comment_count>1</comment_count>
    <who name="Paul Lewis">aerotwist</who>
    <bug_when>2013-01-24 03:51:15 -0800</bug_when>
    <thetext>More context:

We don&apos;t currently indicate to a developer in DevTools that they missed a frame. While this is implicitly deduced if the frame is &gt; 16.6ms (assuming a 60Hz screen) an additional record showing that they missed the frame would be an immediate indicator that rendering performance is suffering.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>870020</commentid>
    <comment_count>2</comment_count>
    <who name="Timothy Hatcher">timothy</who>
    <bug_when>2013-04-05 13:01:49 -0700</bug_when>
    <thetext>Chromium and V8 have left the building. Won&apos;t fix.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>