Displaying 2 results from an estimated 2 matches for "dlm_wq".
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dlm_ct
2009 Aug 03
1
ocfs2 configuration/performance questions...
...ance with all 32 slots. I would assume
that HB is impacted since it would scan all 32 slots each iteration, is
that correct?
3) Prioritization... Has anybody performed any testing wrt to changing
priorities of the various OCFS2 tasks? I might presume that increasing
the priorities of the DLM (dlm_wq, dlm_thread) tasks might be a Good
Thing(tm). OTOH, could it lead to an unbalanced system wrt the other
ocfs2 tasks? Perhaps increasing all ocfs2 tasks? (wrt to the app
referencing the fs?) I'm a little worried about creating priority
inversion issues as this will be on a non-RT Linux OS inst...
2010 Dec 09
1
Extremely poor write performance, but read appears to be okay
...50 0.02
sdc 6.60 0.20 829.00 1.00 104.28 0.00
257.32 1.90 2.31 1.17 97.28
sdc1 6.60 0.20 829.00 1.00 104.28 0.00
257.32 1.90 2.31 1.17 97.28
I'm seeing a few weird kernel messages, such as:
Dec 7 14:07:50 growler kernel:
(dlm_wq,4793,4):dlm_deref_lockres_worker:2344 ERROR:
84B7C6421A6C4280AB87F569035C5368:O0000000000000016296ce900000000: node
14 trying to drop ref but it is already dropped!
Dec 7 14:07:50 growler kernel: lockres:
O0000000000000016296ce900000000, owner=0, state=0
Dec 7 14:07:50 growler kernel: last used...