[webkit-dev] WTF::fastMalloc

Geoffrey Garen ggaren at apple.com
Tue Oct 1 15:23:42 PDT 2013

> Apple's Windows port uses FastMalloc and the last measurements we took show it to be a large performance gain over the default Windows malloc implementation.

I believe those measurements were taken 5 Windows versions ago.

> While this port is only used by iTunes these days, we still would not want to regress its performance. Can the new allocator be made to work with Windows?

The set of porting tasks is the same set I outlined for GTK.

The Windows port is missing many performance features, including tiled scrolling, LLInt, parallel garbage collection, DFG, and FTL. Given those other major missing pieces, I don’t think this piece is worth the porting time.


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