Memory Tuning and Context Switches

[Tatu Salin]

How about if you try to kernel parameter updates? If you have Red-Hat servers you should be able getting more information about your kernel parameters using ipcs -l command. There is also good information available from the 

http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.db2.udb.uprun.doc/doc/t0008238.htm

__________________________
regards
Tatu.





> From: Andrew.Elliott at istat.ca
> To: redhat-list at redhat.com
> Date: Fri, 3 Apr 2009 14:00:39 -0400
> Subject: Memory Tuning and Context Switches
> 
> Hi again,
> 
>  
> 
> We've just upgraded to 12GB of ram and are still experiencing extremely high
> context switches, in some cases, 45000 (vmstat 3 100).
> 
>  
> 
> Does anyone have a link to a technical doc that has information specifically
> dealing with context switching and RAM optimization?
> 
>  
> 
> I'm thinking that I just need to give more cpu time to kswapd.  Comments?
> 
>  
> 
> Thanks.
> 
>  
> 
> I've already read this link:
> http://www.redhat.com/magazine/001nov04/features/vm/
> <http://www.redhat.com/magazine/001nov04/features/vm/> 
> 
>  
> 
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