[PATCH] Speedup ::Enter() and ::Leave() in CriticalSection

[u-ra]

Hi,

CriticalSection::Enter() and Leave() are showing up quite high in my oprofile runs:

Code:

samples  %        image name               symbol name
46845    12.1507  dolphin-emu              Common::CriticalSection::Leave()
35088     9.1012  dolphin-emu              Common::CriticalSection::Enter()

With this patch, it goes down to:

Code:

samples  %        image name               symbol name
4150      1.3138  dolphin-emu              Common::CriticalSection::Enter()
3        9.5e-04  dolphin-emu              Common::CriticalSection::Leave()

I've tested this in NSMBW by leaving it idling on the World 1 Map running oprofile for 20 secs. Before the patch it idled with ~53FPS, after the patch it's ~55FPS.

My machine is an Athlon X2 240 with a Radeon HD4550 and 2 gigs of RAM running Ubuntu Maverick 64. Quite mediocre, really

[Jack Frost]

Commited as r6242.