[Linux-cluster] optimising DLM speed?

Alan Brown ajb2 at mssl.ucl.ac.uk
Wed Feb 16 19:41:04 UTC 2011

 > Directories of the size (number of entries) which you have indicated
should not be causing a problem as lookup should still be quite fast at
that scale.

Perhaps, but even so 4000 file directories usually take over a minute to 
"ls -l" , while 85k file/directories take 5 mins (20-40 mins on a bad 
day) - and this is mounted lock_dlm, single-node-only

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