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

[<ramamurthy.suresh@xxxxxxxxx>]

Hi,

I'm using CentOS 5.1 with Xen 3.0.3.

Thanks in advance,
Suresh.

-----Original Message-----
From: Zang Hongyong [mailto:zanghongyong@xxxxxxxxxx]
Sent: Wednesday, June 25, 2008 6:22 AM
To: Suresh Ramamurthy (WT01 - Embedded & Product Engineering); 
xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Reg: Throughput b/w domU & dom0

what's the version of Xen for your experiment?
　　

======== 2008-06-24 13:38:33 您在来信中写道： ========

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 ?C> DomU:

Recv
Socket
Size bytesSend
Socket
Size bytesSend
Message
Size bytesElapsed
Time
Secs.Throughput
Mbs/sec
87380 16384 16384 10.01231.61



2) DomU ?C> Dom0:

Recv
Socket
Size bytesSend
Socket
Size bytesSend
Message
Size bytesElapsed
Time
Secs.Throughput
Mbs/sec
87380 16384 16384 10.01409.11


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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　　　　　　　　致
礼！

　　　　　　　　　　　　　　Zang Hongyong
　　　　　　　　　　　　　　zanghongyong@xxxxxxxxxx
　　　　　　　　　　　　　　　2008-06-25

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