[lkml]   [2008]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Switching TestSetPageLocked to trylock_page

On Tue, 5 Aug 2008, Nick Piggin wrote:
> The part that helps x86 is another patch further down my stack, which
> can avoid looking at the hashed page waitqueue at unlock_page-time.
> Basically this eliminates the entire page waitqueue from the cache
> footprint of fastpath workloads where the lock is uncontended (often:
> page faulting, write(2), writeout etc).

Hmm. Tell me more. Contention bit?


 \ /
  Last update: 2008-08-05 06:31    [W:0.113 / U:0.020 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site