Bug 151585 - [JSC] Run concurrent JIT in separate process?
Summary: [JSC] Run concurrent JIT in separate process?
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
Depends on:
Reported: 2015-11-24 01:58 PST by peavo
Modified: 2016-11-03 09:26 PDT (History)
2 users (show)

See Also:


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Description peavo 2015-11-24 01:58:43 PST
Just a thought: since most systems nowadays have multiple cores, wouldn't it make sense performance-wise to run concurrent code generation in separate processes, instead of threads?
Or maybe the overhead of starting processes are too big? I guess sharing data between the processes also might be an issue :)
Comment 1 Filip Pizlo 2016-11-03 09:26:26 PDT
The concurrent JIT reads whole JSC heap and a lot of the VM runtime state.  Given its heavy reliance on shared memory already, I don't think this would be practical.