[CentOS] Re: Native Command Queueing

nate centos at linuxpowered.net
Thu Jul 24 23:28:40 UTC 2008

Matt wrote:

> How bad does the below look?  Dual core AM2 5600+ with 4G DDR2 and
> single SATA2 drive.
> 05:40:01 PM       CPU     %user     %nice   %system   %iowait     %idle
> 05:50:01 PM       all      7.20      0.00      2.49      5.08     85.23
> Average:          all     14.13      0.00      3.12     14.85     67.90

The average looks average.. with stats only collecting once every
10 minutes it's hard to say. I collect my stats using sar and pipe
them into cacti every minute.

If you get say into the 25-30% range I'd be concerned.

What kind of mail system are you running ? Is it simply a SMTP relay
or is mail being stored on the system and users accessing it? If
users are accessing it what type of mail storage(mbox, maildir, cyrus


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