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[Xen-devel] Reg: Throughput b/w domU & dom0


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: <ramamurthy.suresh@xxxxxxxxx>
  • Date: Tue, 24 Jun 2008 10:38:33 +0530
  • Delivery-date: Mon, 23 Jun 2008 22:09:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcjVuFl8aHsqdqmOSbOX/Jl89XImcA==
  • Thread-topic: Reg: Throughput b/w domU & dom0

Note: Forgot to add the detail netperf results.

 

Hi all,

 

I used netperf to measure throughput between dom0 & domU.

 

The throughput between dom0 -> domU was 256.00 Mb/sec

                                    domU -> dom0 was 401.15 Mb/sec.

 

1) Dom0 –> DomU:

 

Recv

Socket

Size bytes

Send

Socket

Size bytes

Send

Message

Size bytes

Elapsed

Time

Secs.

Throughput

Mbs/sec

87380 

16384 

16384 

10.01

231.61

 

 

2) DomU –> Dom0:

 

Recv

Socket

Size bytes

Send

Socket

Size bytes

Send

Message

Size bytes

Elapsed

Time

Secs.

Throughput

Mbs/sec

87380 

16384 

16384 

10.01

409.11

 

The throughput between dom0 & domU seems to be very asymmetry. To my surprise the throughput between domU -> dom0 is more. The value which I specified are consistent values. Is there any reason for throughput being more between domU -> dom0? Please share if you have any information regarding this.

 

Thanks in advance,

Suresh.

 

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