[Beowulf] Help with inconsistent network performance

stephen mulcahy smulcahy at aplpi.com
Tue Dec 18 08:31:28 PST 2007

Brendan Moloney wrote:
> Any input on things to check would be greatly appreciated.

It might be useful to run some tools like dstat, top/htop, vmstat and 
iostat while performing the rendering and summarise any behaviour which 
co-incides with the hiccups.

Have you ganglia on your cluster? You might notice system resource 
spikes which co-incide with your hiccups.


Stephen Mulcahy, Applepie Solutions Ltd., Innovation in Business Center,
GMIT, Dublin Rd, Galway, Ireland.  +353.91.751262  http://www.aplpi.com
Registered in Ireland, no. 289353 (5 Woodlands Avenue, Renmore, Galway)

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