Re: [Xen-users] Xen Performance

[Grant McWilliams <grantmasterflash@xxxxxxxxx>]

On Wed, Oct 14, 2009 at 2:19 AM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:

On Wed, Oct 14, 2009 at 2:06 PM, Grant McWilliams

<grantmasterflash@xxxxxxxxx> wrote:
> On Tue, Oct 13, 2009 at 11:18 PM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
>> On Wed, Oct 14, 2009 at 12:54 AM, Grant McWilliams
>> <grantmasterflash@xxxxxxxxx> wrote:

>> > DomU to DomU -Â 1.93 Gbits/sec

>>

>> Ah ... so domU <-> domU is working FINE, right? That is similar with
>> the results I get :
>
> It isn't working fine. I said at the end of my message that the numbers
> aren't quite right because I didn't post both halves of the bidirectional
> test. The second half is 1/4 the speed of the first.

I posted the result for self-compiled 2.6.29-xen domU in my second
mail on this thread (I got around 1-2 Gbps). Here's one for domU with
RHEL's kernel-xen-2.6.18-164.2.1.el5 (same dom0):

# iperf -c 192.168.122.49 -r

------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------

Client connecting to 192.168.122.49, TCP port 5001

TCP window size: 85.3 KByte (default)
------------------------------------------------------------

[ Â5] local 192.168.122.144 port 64178 connected with 192.168.122.49 port 5001
[ ID] Interval    Transfer   Bandwidth
[ Â5] Â0.0-10.0 sec Â2.57 GBytes Â2.21 Gbits/sec
[ Â4] local 192.168.122.144 port 5001 connected with 192.168.122.49 port 45773
[ ID] Interval    Transfer   Bandwidth
[ Â4] Â0.0-10.0 sec Â2.66 GBytes Â2.29 Gbits/sec

--
Fajar

Looks like the Redhat kernel is faster for return trip tests.. Identical speed both ways.

Grant McWilliams
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