Bug 149823 - GC should be more aggressive about canceling plans that will be DOA
Summary: GC should be more aggressive about canceling plans that will be DOA
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on: 149821
Blocks:
  Show dependency tree / graph
 
Reported: 2015-10-05 15:49 PDT by Filip Pizlo
Modified: 2015-10-05 15:49 PDT (History)
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Description Filip Pizlo 2015-10-05 15:49:47 PDT 
The GC used to be able to cancel FTL plans if the profiled DFG CodeBlock was going to be jettisoned.  Then, we regressed that code and made it so that GC canceled all FTL plans.  Then we removed the code to cancel FTL plans, except in cases where the owning executable was dead.

It might be worthwhile to bring some of that code back somehow.