Bug 193949

Summary: [JSC] CompleteSubpace is too large
Product: WebKit Reporter: Yusuke Suzuki <ysuzuki>
Component: JavaScriptCoreAssignee: Yusuke Suzuki <ysuzuki>
Status: NEW ---    
Severity: Normal    
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 193606    

Description Yusuke Suzuki 2019-01-28 19:39:36 PST 
One CompleteSubspace takes 4152B! The large part of this is just m_allocatorForSizeStep (4024B), which holds 503 Allocators.
This is so wasting since our size class is not so many typically (in default configuration, it becomes 18).