lkml.org 
[lkml]   [2010]   [Nov]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpaths for slub
From
Date
On Tue, 2010-11-23 at 17:51 -0600, Christoph Lameter wrote:
> So there is no need even to disable preemption which will make the allocations
> scale well in a RT environment.

The RT thing isn't particularly about scaling per-se, its mostly about
working at all.

This thing still relies on disabling IRQs in the slow path, which means
its still going to be a lot of work to make it work on -rt.

It also heavily relies on bit-spinlocks, which again is going to need
changes for -rt.

But yes, the lockless fast path is nice, I'll try and get around to
reading it.


\
 
 \ /
  Last update: 2010-11-24 09:17    [W:0.373 / U:1.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site