Related to: FC4 Sluggishness on a 466 MHz Celeron

Tony Nelson tonynelson at georgeanelson.com
Wed Jul 13 02:47:57 UTC 2005


At 2:08 PM -0500 7/12/05, Mike McCarty wrote:
>Tony Nelson wrote:
>
>>At 9:33 AM +0200 7/12/05, Klaasjan Brand wrote:
>>
>>
>>>On 7/11/05, Mike McCarty <mike.mccarty at sbcglobal.net> wrote:
>>>
>>>
>>>
>>>>FC2 has completely surprised me with how slow it is. I have a 2.7 GHz
>>>>Celeron
>>>>with 256MB RAM, and it takes 3 seconds to start a new xterm. The System
>>>>Monitor
>>>>shows 1-3% CPU occupancy, 154MB used RAM, and 96.9MB of swap. I'm a
>>>>little bit
>>>>surprised that it's using any swap with only 60% of memory full.
>>>>
>>>>
>>>The kernel tries to swap unused pages out to give more space to the
>>>disk cache (all the unused memory). You can adjust the swapping
>>>behaviour by writing a value to /proc/sys/vm/swappiness (see
>>>http://kerneltrap.org/node/1044).
>>>
>>>
>>
>>So did Con's patch ever made it into the kernel?  I see that my swappiness
>>is at 60, the default that Con's patch replaces.  2.6.11-1.35_FC3
>>
>>
>So is mine, and attempts to edit that file fail.

Works here.  Were you root?  Do you really mean "edit" or did you:

    # cat 59 >/proc/sys/vm/swappiness

I get permission denied as a normal user, while the value sticks if I'm
root.  The sign that the patch is in the kernel is that changes don't
stick.  So I suppose it never made it in.
____________________________________________________________________
TonyN.:'                       <mailto:tonynelson at georgeanelson.com>
      '                              <http://www.georgeanelson.com/>




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