[Beowulf] NFS share - IO rate
jlb17 at duke.edu
Tue Apr 20 12:54:50 PDT 2010
On Tue, 20 Apr 2010 at 9:36pm, Henning Fehrmann wrote
> These extreme case illustrate the difficulty to interpret the results
> reliably. It would make more sense to have a tool at hand which starts a
> test on many clients simultaneously and do a count of the IO operation
> within a particular time interval. The simultaneity is not a problem
> here - this can be achieved by scripts. These results can be safely
> added together to obtain a overall IO-rate.
> Do you know such a tool or are there other ways to get a picture of a IO
> capability of cache-file server?
Have a look at IOR, which uses MPI to coordinate the clients.
QB3 Shared Cluster Sysadmin
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