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[Xen-devel] Sar, iostat and vmstat

To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Sar, iostat and vmstat
From: "Apparao, Padmashree K" <padmashree.k.apparao@xxxxxxxxx>
Date: Fri, 12 May 2006 11:27:31 -0700
Delivery-date: Fri, 12 May 2006 11:28:40 -0700
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Thread-topic: Sar, iostat and vmstat

The sar and vmstat data seem to be very misleading while running inside
a guest or even in dom0. The numbers just don't add up.

For example, I see that when I run an app natively (linux) I see 1000
interrupts/sec, while running the same app inside a guest and collecting
sar either in dom0 or inside the guest, the number of interrupts is
about 40-60. 

Has anyone gotten these tools to work? Would appreciate some help to get
these tools working

- Padma

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