[Xen-users] Re: What does xm top mean by the following:

[pv <vishnubhatt@xxxxxxxxx>]

Thx Mats - I'm not quite sure what the %-ages mean i.e. what is 100% - is it the sum of all the cpu(hw or hyperthreaded or vcpus) on all the domains?

 

Take for .e.g a data center utilizing 35% of CPU for a particular server;

And, enter Xen: and you have installed 2 instead of one server running on the same h/w w/ the hope of increasing utilization. 

So, instead of 35%, one is expected to see 35%+x afa utilization (is this true?)

 

It does not matter what base-line or metrics one is presented with (I'm happy w/ the top presentation); as long as it is clear and easy to explain to a 'CIO, CFO or VP-finance or an unsuspecting fellow-worker' - if you know what I mean, I'll look forward to some documentation or an explanation to this regard. Thx in advance.

--

 

On 7/1/06, pv <vishnubhatt@xxxxxxxxx> wrote:

I'm compiling some tarballs in both the guest domains below (fedora1 and fedora2), they're quite compute/cpu intensive, when I do a xm top, I get the following, can someone tell me what does it mean to have CPU at 98.6% on one guest domain while 84.9% in the other when the host/domain-0 is at 3.2%? Thx in advance.

 

--

xentop - 20:38:02   Xen 3.0-unstable
3 domains: 2 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 1038488k total, 1028408k used, 10080k free    CPUs: 2 @ 3391MHz
      NAME  STATE   CPU(sec) CPU(%)     MEM(k) MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) SSID
  Domain-0 -----r         41    3.2     131100   12.6   no limit       n/a     2    8      879      378    0
   fedora1 ------         91   98.6     437652   42.1     442368      42.6     1    2        8       34    0
   fedora2 -----r         60   84.9     437564   42.1     442368      42.6     1    2        7       36    0
 

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