[Linux-cluster] optimising DLM speed?

Steven Whitehouse swhiteho at redhat.com
Wed Feb 16 12:57:27 UTC 2011


Hi,

On Wed, 2011-02-16 at 12:02 +0000, Alan Brown wrote:
> > There is a config option to increase the resource table size though, 
> so perhaps you could try that?
> 
> ..details?
> 
> 
You can set it via the configfs interface:

echo "4096" > /sys/kernel/config/dlm//cluster/rsbtbl_size

It doesn't change once a lockspace has been created, so the new table
size needs to be set before mounting the filesystem, otherwise it will
not take effect. The size must be a power of two. Likewise the
lkbtbl_size can be set the same way,

Steve.

> 
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