On Fri, Nov 11, 2011 at 04:23:47PM +0000, Guy wrote: > The original machine is running 2.3.16 without replication and the > average load rarely went over 1. On the new server running 2.4.12 > (details below) I'm seeing the average load hover around 5 constantly. > The new box is running replication and this appears to be set up > correctly as the logs look pretty clean. top shows CPU percentage for > each imapd process running quite high. The largest mailbox contains > about 3000 emails and is usually at 50 to 60% CPU.
I wonder if it's crc32 causing the difference. The replication will be adding some load too. And yes - you really want expunge_mode: delayed if you're running replication, or at least NOT expunge_mode: immediate. > expunge_mode: default That should be OK actually. > server101_sync_host: 10.10.10.10 > server201_sync_host: 10.11.10.11 You are syncing to two different backends. That will be using more CPU for sure, just because the same mailbox gets opened three times for every change. Bron. ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
