RE: Reducing I/O load of logging

From: John Lauro <>
Date: Fri, 13 Feb 2009 08:36:37 -0500

Actually, the high sys time was probably from the lsof. I should have had that run prior to vmstat, so it didn't get counted on the vmstat output.    

The grep on /var/messages completed too quick to really catch much. That said, your SYS time is a little high, especially after it finished. For an 8 core box, only 12.5% would mean one core dedicated to the task, and it rose from 4 to 16. Given that it was counted as sys and not user, and generated little I/O, indicates it might be slow memory processing on the cache.   Received on 2009/02/13 14:36

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