lkml.org 
[lkml]   [2008]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: vfat file system extreme fragmentation on multiprocessor
On Thu, 11 Sep 2008 20:01:16 +0200
Harun Scheutzow <harun04@scheutzow.de> wrote:

> I like to share the following observation made with different kernels of 2.6.x series

Yeah. ext2 and ext3 also showed major, major, major differences in
layout quality (and hence performance) when switching between
uniprocessor and multiprocessor environments, for the same reason. (UP was
far better).

It was fixed in ext3/4 by the in-core reservations code (recently
ported into ext2 as well).

This is why filesystem performance testing is far from complete if it
is performed only on SMP (or UP) machines.



\
 
 \ /
  Last update: 2008-09-12 01:53    [W:0.506 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site