lkml.org 
[lkml]   [1999]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PATCH 2.3.26: kmalloc GFP_ZERO
On Wed, 10 Nov 1999, Pavel Machek wrote:

>So you never do any task which is partly-cpu-bound and
>partly-io-bound? That tasks are pretty common in real life (starting

When you are I/O bound the page-fault rate is very very low and IMHO you
are not going to see any sensitive improvement. clear page become a
bottleneck only when the page fault rate is high.

Actually on x86 doing it in software would be a bad idea anyway as
currently there's no way to avoid cache pollution (and I don't have KNI
here). perloading cachelines at page fault time is the best thing to do
for x86 right now.

>[..] Not everyone has enough ram
>to to run make -j 5!

I understand as I don't use -j5 either ;). I tune -j to make sure all CPUs
are busy all the time and nothing more.

Andrea


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

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:0.085 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site