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[Xen-devel] Xen Performance metrics

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Xen Performance metrics
From: <Lu.YJ@xxxxxxxxxxxx>
Date: Thu, 7 Apr 2011 17:20:37 +0800
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Thread-topic: [Xen-devel] Xen Performance metrics

Hi everyone,

 

I am studying the Xen performance metrics.

My questions are if we can get the following metrics from Xen hypervisor interface / XEND API (XEN management API) or not ?

cpu.extra.summation, cpu.ready.summation,

disk.busResets.summation, disk.commandsAborted.summation, disk.queueLatency.average,

mem.active.average, mem.overhead.average

If no, plan to add them? or How to add them?

 

As I study, there are the following results about XEN performance metrics on the current XEN 4.1.0.

BTW, VMWARE hypervisor can get all the metrics below.

We can determine if the VM / host encounter the bottleneck issues using the performance metrics.

 

Xen (hypervisor) interface

Xen enabled kernel (drivers like balloon, network / block backend, privcmd,…)

XEN (management) API

(XEND API)

Libvirt API

CPU

1. cpu.extra.summation

2. cpu.ready.summation

3. cpu.usagemhz.average

v

x

V

V

disk

4. disk.busResets.summation

5.disk.commandsAborted.summation

6. disk.totalLatency.average

7. disk.queueLatency.average

Throughput: An average of

8. disk.read.average and

9. disk.write.average

10. disk throughput

 = (disk.read.average +

disk.write.average ) /2

x

v

V

V

memory

11. mem.active.average

 

 

 

 

12. mem.consumed.average

v

x

V

 

V

 

13. mem.overhead.average

 

 

 

 

Memory Swapping:

14. mem.swapin.average,

15. mem.swapout.average

16. mem.swapped.average

v

x

x

V

17.mem.vmmemctl.average(balloon)

x

v

x

V

 

network

 

 

 

 

18. net.received.average,

19. net.transmitted.average and

20. net.usage.average

x

v

V

 

V

 

 

 

Thanks.

YJ

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