[Linux-cluster] Resource groups

Bob Peterson rpeterso at redhat.com
Mon Mar 14 14:30:11 UTC 2011

----- Original Message -----
| Bob:
| You say this in your best practice document:
| "Our performance testing lab has experimented with various resource
| group sizes and found a performance problem with anything bigger than
| 768MB. Until this is properly diagnosed, we recommend staying below
| 768MB."
| What are the details? Nearly all of our FSes are created with 2Gb RGs.


I'm afraid I don't have many more details.  This was just a comment
that one of our performance guys sent to me a while back.  I haven't
had a chance to investigate his claims or look into what's going on.
I'll do some tests of my own, and if I can recreate a performance
problem based on rgrp size, I'll open a bugzilla record and analyze
what's going on.


Bob Peterson
Red Hat File Systems

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