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Re: [Xen-users] why xentop cpu utilities show over 100%
Flako ,thanks a lot.
-----ååéä-----
From: Flako
Sent: Wednesday, October 10, 2012 11:21 PM
To: xen-users@xxxxxxxxxxxxx
Subject: Re: [Xen-users] why xentop cpu utilities show over 100%
2012/10/10 Jun Hu <duanshuidao@xxxxxxxxxxx>:
Hi experts:
why cpu % show 135.6% which is over 100%ï
how do I compute exact cpu ulitities?
xentop - 20:43:55 Xen 4.1.3_02-0.5.1
2 domains: 2 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 4122636k total, 4117100k used, 5536k free CPUs: 2 @ 2793MHz
NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%)
VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO VBD_R
D VBD_WR VBD_RSECT VBD_WSECT SSID
Domain-0 -----r 184 4.8 1839104 44.6 no limit n/a
2 0 0 0 0 0
0 0 0 0 0
sles11sp2p -----r 1194 135.6 2097152 50.9 2097152 50.9
2 1 128 26 2 0 372
3 3360 121590 206784 0
From: hu jun
Sent: Friday, October 05, 2012 8:05 PM
To: Mahesh Thiagarajan ; .
Subject: Re: [Xen-users] virt-manager vs xentop
________________________________
From: duanshuidao@xxxxxxxxxxx
To: mahesh.thiagarajan@xxxxxxxxxx; xen-users@xxxxxxxxxxxxx
Subject: RE: [Xen-users] virt-manager vs xentop
Date: Fri, 5 Oct 2012 12:05:17 +0000
how to calculate cpu ulitities in xentop ? It often appears numbers above
100%.
this is my question too.
Date: Fri, 5 Oct 2012 10:52:52 +0530
From: mahesh.thiagarajan@xxxxxxxxxx
To: xen-users@xxxxxxxxxxxxxx
Subject: [Xen-users] virt-manager vs xentop
Hi,
To identify the suitable virtualization technology for a project, we
were evaluating XEN against openVZ in terms of CPU usage for a
networking application. The networking application indulges heavily in
data transfer between the virtual nodes/containers/OS's inside a high
end machine. While measuring the CPU usage of XEN, we see that the CPU
usage indicated by the virt-manager tool and xentop are way different.
In a four core machine, virt-manager indicates a cpu usage of 40% where
as xentop 130%.
100% indicates a core (vcpu) to 100%, ie if there are 4 cores, xm top
could indicate 400%
the 135.6 indicate that sles11sp2p is using cores of 1.3 dom0
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