<?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>261364</bug_id>
          
          <creation_ts>2023-09-08 19:25:19 -0700</creation_ts>
          <short_desc>High system cpu load during IDL generation</short_desc>
          <delta_ts>2023-12-04 16:48:43 -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>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=265749</see_also>
          <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>
          
          <blocked>262321</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Elliott Williams">emw</reporter>
          <assigned_to name="Elliott Williams">emw</assigned_to>
          <cc>ap</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1976578</commentid>
    <comment_count>0</comment_count>
    <who name="Elliott Williams">emw</who>
    <bug_when>2023-09-08 19:25:19 -0700</bug_when>
    <thetext>On a M1 Ultra Mac Studio, WebCore’s derived sources target takes ~ 50sec to build, with most of that time spent generating IDLs. It scales to use all CPUs, but puts comparatively more load on the system than on user processes. We should figure out why this is such a system-heavy operation, and optimize it.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1977799</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2023-09-15 19:27:00 -0700</bug_when>
    <thetext>&lt;rdar://problem/115584014&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1979110</commentid>
    <comment_count>2</comment_count>
    <who name="Elliott Williams">emw</who>
    <bug_when>2023-09-21 13:22:03 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/18038</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1980801</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2023-09-27 21:08:42 -0700</bug_when>
    <thetext>Committed 268561@main (eadc88e2217f): &lt;https://commits.webkit.org/268561@main&gt;

Reviewed commits have been landed. Closing PR #18038 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1981075</commentid>
    <comment_count>4</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2023-09-28 13:28:27 -0700</bug_when>
    <thetext>Committed 268606@main (aa8545f5047b): &lt;https://commits.webkit.org/268606@main&gt;

Reviewed commits have been landed. Closing PR #18373 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>