From: Paul Mackerras <[EMAIL PROTECTED]> Date: Tue, 13 Mar 2007 11:37:32 +1100
> David Miller writes: > > > I ported this to sparc64 as per the patch below, tested on > > UP SunBlade1500 and 24 cpu Niagara T1000. > > Did you see any performance improvement? We used to have quicklists > on ppc, but I remain to be convinced that they actually help. It shaved about 3 or 4 seconds consistently off of my kernel build on Niagara which usually clocks in just over 4 minutes on this 24 thread machine. > Also, I didn't understand why we have to do quicklists to take > advantage of the fact that the pages are in a pristine state when they > are freed. I thought the whole point of the slab allocator was to be > able to take advantage of that... He just wants to side-step the issue in SLUB, which arguably is an attempt to simplify SLUB at the expense of functionality. I don't agree with that, but I'm merely preemptively testing his patches and porting them to sparc64 so it does not break when/if his code is merged in. After being bitten by stuff like this in the past, I've decided to become more proactive :) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
