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_at_yahoo.co.in> 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"
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Received on Tue Mar 29 2005 - 18:24:05 CST
