Status: New
Owner: ----
New issue 3466 by [email protected]: Several poor V8 performance cases
highlighted by GBA emulator project
http://code.google.com/p/v8/issues/detail?id=3466
I was recently pointed at several comments from a GBA emulator projet on
Github that contains several non-flattering observations about cases where
V8 performs poorly in relation to other browsers. Seems like these are
reasonable real-world scenarios that should be simple enough to isolate,
and are probably worth investigating.
De-Opt on object with two variants:
https://github.com/grantgalitz/IodineGBA/commit/3e7836413c05fa572961322a35044436eff723ad
TypedArray performance issue (No details):
https://github.com/grantgalitz/IodineGBA/commit/c4eb825acc8b3778e9a7e156c55697af3d4e4f41
Slow TypedArray .set (Possibly related to previous commit):
https://github.com/grantgalitz/IodineGBA/commit/ee7e0f3487a841d5ea5fef090c40d46a2e0cc003
Large switch statements (> 128 cases):
https://github.com/grantgalitz/IodineGBA/commit/1ea945bbc4cfa13a6a9845e312e6d08726fbe9f8
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