[lkml]   [2008]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 08 of 11] anon-vma-rwsem
Robin Holt wrote:
> Then we need to deposit the information needed to do the invalidate.
> Lastly, we would need to interrupt. Unfortunately, here we have a
> thundering herd. There could be up to 16256 processors interrupting the
> same processor. That will be a lot of work. It will need to look up the
> mm (without grabbing any sleeping locks in either xpmem or the kernel)
> and do the tlb invalidates.

You don't need to interrupt every time. Place your data in a queue (you
do support rmw operations, right?) and interrupt. Invalidates from
other processors will see that the queue hasn't been processed yet and
skip the interrupt.

error compiling committee.c: too many arguments to function

 \ /
  Last update: 2008-05-15 13:15    [W:0.113 / U:2.056 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site