lkml.org 
[lkml]   [2001]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: please revert bogus patch to vmscan.c
On Mon, Oct 29, 2001 at 03:22:28PM -0800, Linus Torvalds wrote:
> Does it make the accessed bit less reliable? Sure it does. But basically,
> either the page is accessed SO much that it stays in the TLB all the time
> (which is basically not really possible if you page heavily, I suspect),
> or it will age out of the TLB on its own at which point we get the
> accessed bit back.

Think of CPUs with tagged tlbs and lots of entries. Or even a system that
only runs 1 threaded app. Easily triggerable. If people want to optimise
it, great. But go for correctness first, please...

-ben
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:18    [W:0.116 / U:2.900 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site