Eric W. Bates
ericx at whoi.edu
Fri Aug 5 11:11:33 EDT 2016
We are migrating our cyrus from a venerable computer to a new one.
We've been gradually moving individuals over to the new machine and are
quite surprised at the poor performance characteristics we're seeing on
the new machine.
The new machine:
2 @ 6 core Xeon E5-2640
256 Gb memory
zfs built on 18 SAS drives with SSDs for zfs cache and log
Cyrus imapd 2.5.7
There are approximately 1000 copies of imapd running at any given moment.
The load average hovers around 5.
Can anyone suggest what we might look at to assess why imapd seems to be
such heavy lifting?
Clark 159a, MS 46
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