lkml.org 
[lkml]   [2014]   [Aug]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH tip/core/rcu 0/16] RCU-tasks implementation
On Mon, Aug 11, 2014 at 03:48:40PM -0700, Paul E. McKenney wrote:
> Hello!
>
> This series provides v5 of a prototype of an RCU-tasks implementation,
> which has been requested to assist with tramopoline removal. This flavor
> of RCU is task-based rather than CPU-based, and has voluntary context
> switch, usermode execution, and the idle loops as its only quiescent
> states. This selection of quiescent states ensures that at the end
> of a grace period, there will no longer be any tasks depending on a
> trampoline that was removed before the beginning of that grace period.
> This works because such trampolines do not contain function calls,
> do not contain voluntary context switches, do not switch to usermode,
> and do not switch to idle.

[ . . . ]

> o There are probably still bugs.

And there probably are, but this version passes 10-hour rcutorture tests
in a few configurations, so getting reasonably robust.

Thanx, Paul



\
 
 \ /
  Last update: 2014-08-13 02:21    [W:0.424 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site