Re: sar has the correct information or the vmstat?

I remember at a Sun presentation once the presenter remarked that "vmstat was 
the official tool
and  'sar' started life as a student project and should be treated as such".

I dunno if thats truth or fiction.

Cheers
Connor

--- arun chakrapani rao <arunrao_oradba@xxxxxxxxxxx> wrote:
> Hi unix gurus
> which tool for checking the cpu utilization is
> reliable,
> is sar better or vmstat better on an hp box
> Please let me know 
> I am working on an HP itanium server out here and i am
> seeing that both these tools show lots of difference
> i understand that sar gives out the io stats along
> with the idle stats.
> I am seeing here that idle time based on vmstat shows
> it is 80 to 90% where as the sar shows the idle time
> is 50 to 60%
> But the top and the glance shows similar to what the
> vmstat shows.
> Hence i am not sure which is correct.
> A small output is being show here
> Sar 2 5000
> 15:58:18    %usr    %sys    %wio   %idle
> 15:58:30      19       4      32      44
> 15:58:32      14       4      22      61
> 15:58:34      13       3      18      66
> 15:58:36      14       4      26      56
> 15:58:38      21       5      33      42
> 
> Vmstat 2
> us sy id
> 12  4 84
> 13  2 85
> 18  4 78
> 16  4 81
> 13  3 84
> 13  3 84
> 20  5 74
> 13  6 81
> 
> Any help would be greatly appreciated.
> 
> Thanks in advance
> 
> Arun
> 
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Connor McDonald
Co-author: "Mastering Oracle PL/SQL - Practical Solutions"
Co-author: "Oracle Insight - Tales of the OakTable"

web: http://www.oracledba.co.uk
web: http://www.oaktable.net
email: connor_mcdonald@xxxxxxxxx

"GIVE a man a fish and he will eat for a day. But TEACH him how to fish, 
and...he will sit in a boat and drink beer all day"

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