A new revision of the only working PS2 emulator, PCSX2 is out. The commit was made by GSdx author gabest with this changelog:
Not transferring unused vif registers to the MTVU thread can save at least half of the ring buffer space. The whole set is about 400 bytes, including padding, but I could find references to only 6 regs.
First tests indicate a 2-10% speed boost while using the MTVU hack and this new GSdx plugin.

PCSX2 homepage: http://pcsx2.net/
Official SVN download (from Orphis buildbot): http://pcsx2.net/svn.php


Finally, if you see this wraggster, please contact me