[openib-general] Re: perftest on i386

Michael S. Tsirkin mst at mellanox.co.il
Sat May 21 22:19:51 PDT 2005


Quoting r. Bernhard Fischer <blist at aon.at>:
> Subject: perftest on i386
> 
> Hi,
> 
> On i386 UP, i see odd results during runs. The machine is basically
> idle.
> 
> The worst latency is always somewhere around exchange 12-80.
> Is this expected and if not, does somebody have an idea what may cause
> this?
> 
> Thank you,

scheduler moving one of the tasks (server or client) around.
If you have an SMP machine, you'll get more stable results using
taskset.

-- 
MST - Michael S. Tsirkin



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