CentOS - Nov 2007 - sysstat out put

Hello

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    
0.09    0.00
01:20:01       2     245.37    0.00    0.00    4.41    0.00    0.00    
0.11    0.00
01:20:01       3     272.07    0.00    0.00    0.15    0.00    0.00    
0.12    0.00
01:30:01       0     255.40    0.00    0.00    0.00    0.00    0.00    
0.07   11.92
01:30:01       1     255.05    0.00    0.00    4.56    0.00    0.00    
0.00    0.00
01:30:01       2     255.06    0.00    0.00    4.56    0.00    0.00    
0.23    0.00
01:30:01       3    255.05    0.00    0.00    0.00    0.00    0.00    
0.12    0.00

Thanks for help

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On 11/28/2007 09:20 PM, Centos wrote:
> Hello
> 
> 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" [0]
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.
[0]
http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/admin-primer/s1-bandwidth-rhlspec.html

cheers
Simon

- --
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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