I’m always trying to find a good method of monitoring system performance and logging it, but today I ran into a rather strange issue that I couldn’t find on google.
sar 0 was returning high idle percentages:
sar -u 0
08:17:29 AM Â Â Â CPU Â Â %user Â Â %nice Â %system Â %iowait Â Â %idle
08:17:29 AM Â Â Â all Â Â 18.11 Â Â Â 0.01 Â Â 11.66 Â Â 70.22 Â Â 3549.42running top didn’t produce 3.5k % idle and in fact the system was nearly 98% idle.ÂThe quick fix is to simply runyum update sysstatThat fixed the problem immediately on the box I was using.Hope this helps someone else.