MMU speed hack and block merging?

[Trevlec]

Hi, i have a question, what is MMU speed hack and block merging in the game properties? gives me that a performance boost?

[HawaiianPunch]

I don't know about block merging, but MMU speed hack is basically a sped up version of the MMU hack, previously known as the TLB hack. If the game needs it, MMU Speed hack is faster than MMU hack but otherwise don't use it. Most games that require it have the setting put in automatically.

[LordVador]

MMU Speed Hack is needed to start some games. For Block Merging read this http://forums.dolphin-emu.org/showthread.php?tid=17663&highlight=block+merging