lkml.org 
[lkml]   [2010]   [Jul]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH] vmscan: raise the bar to PAGEOUT_IO_SYNC stalls
From
On Sat, Jul 31, 2010 at 8:59 PM, Christoph Hellwig <hch@infradead.org> wrote:
> On Sat, Jul 31, 2010 at 08:55:57PM +0300, Pekka Enberg wrote:
>> Do you have CONFIG_SLUB enabled? It does high order allocations by
>> default for performance reasons.
>
> Yes. This is a kernel using slub.

You can pass "slub_debug=o" as a kernel parameter to disable higher
order allocations if you want to test things. The per-cache default
order is calculated in calculate_order() of mm/slub.c. How many CPUs
do you have on your system?


\
 
 \ /
  Last update: 2010-07-31 20:11    [W:0.157 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site