OSMA Latencies

Arjan van de Ven arjanv at redhat.com
Wed Nov 13 12:25:00 CST 2002


On Wed, Nov 13, 2002 at 10:44:33AM -0600, Tim Korsrud wrote:
> 
> Hi,
> 
> I am trying to use a Dell PowerEdge 2650 for a realtime application.  I
> would like to run the OSMA agents on the machine, but when I run them, I get
> very high worst case latencies on the order of 500 ms.  If I stop the OSMA
> agents, the worst cast latency is 3.8 ms.
> 
> I have also tested a PowerEdge 1650 running the OSMA agents, and worst case
> latency is only 7.4 ms.
> 
> I am running Redhat 7.3, stock 2.4.18 kernel with the low latency patch.
> Latencies are tested using the realfeel package.

careful with that lowlatency patch! there are some bugs in it
(and the RHL 7.3 kernel includes the sane bits already, the update kernel
should do a LOT better than 7.4ms...)




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