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[Xen-users] decreasing Xenmon overhead

To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] decreasing Xenmon overhead
From: "Ashish Gupta" <ashishgup@xxxxxxxxx>
Date: Tue, 29 May 2007 14:53:45 -0500
Delivery-date: Tue, 29 May 2007 12:52:03 -0700
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Hi,

I have been trying to run xenmon in its logging mode to collect statistics for offline analysis. However  I notice that at an interval of 100 ms or so the overhead imposed by dom0 is quite high , with upto 40% of CPU utilization.

Are there ways I can drastically reduce this overhead ? I read somwhere about event overhead, using event masks and python overhead,  but am not really sure how to use this information to reduce the overhead.

Any help is greatly appreciated !

thanks,
Ashish


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