lkml.org 
[lkml]   [2013]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v3 0/4] MCS Lock: MCS lock code cleanup and optimizations
From
On Wed, Nov 6, 2013 at 1:42 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> Perhaps I'm missing something here, but what is MCS lock and what is the
> value?

Its a kind of queued lock where each waiter spins on a a separate
memory word, instead of having them all spin on the lock's memory
word. This helps with scalability when many waiters queue on the same
lock.

--
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.


\
 
 \ /
  Last update: 2013-11-06 23:21    [W:1.550 / U:0.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site