[CentOS] sysstat out put
Simon Jolle "sjolle"
urandomdev at gmail.com
Wed Nov 28 20:56:24 UTC 2007
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On 11/28/2007 09:20 PM, Centos wrote:
> in our Sysstat output we have the following lines, any one knows what
> does it mean ?
> 00:00:01 CPU i000/s i008/s i009/s i014/s i066/s i074/s
> i082/s i090/s 01:20:01 0 248.09 0.00 0.00 0.00
> 0.00 0.00 0.04 91.06 01:20:01 1 255.06 0.00 0.00
> 4.59 0.00 0.00
I guess you are monitoring interrupt activity by processor (sar -I PROC).
See "Red Hat Linux 9: Red Hat Linux System Administration Primer"  or
the "sar" man page - Here quote from the guide:
> By using the command sar -I PROC, it is possible to break down
> interrupt activity by processor (on multiprocessor systems) and by
> interrupt level (from 0 to 15):
> This report (which has been truncated horizontally to fit on the
> page) includes one column for each interrupt level (the i002/s field
> illustrating the rate for interrupt level 2). If this were a
> multiprocessor system, there would be one line per sample period for
> each CPU.
> Another important point to note about this report is that sar adds or
> removes specific interrupt fields if no data is collected for that
> field. This can be seen in the example report above; the end of the
> report includes interrupt levels (3 and 10) that were not present at
> the start of the sampling period.
actually, I think Windows Vista has done more than virtually any OS
release to promote the use of Linux (Slashdot Kommentar, 4. Oct 07)
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