[Beowulf] When is compute-node load-average "high" in the HPC context? Setting correct thresholds on a warning script.

Christopher Samuel samuel at unimelb.edu.au
Wed Sep 1 03:34:21 EDT 2010


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On 01/09/10 01:58, Reuti wrote:

> With recent kernels also (kernel) processes in D state
> count as running.

I wouldn't say recent, that goes back as far as I can
remember.

For instance I've seen RHEL3 (2.4.x - sort of) NFS servers
with load averages in the 80's where they were run with a lot
of nfsd's that were blocked waiting for I/O due to ext3.

cheers!
Chris
- -- 
 Christopher Samuel - Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computational Initiative
 Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
         http://www.vlsci.unimelb.edu.au/

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