From: David Becker <becker@cs.duke.edu>
To: xen-devel@lists.sourceforge.net
Subject: etherbridge bottleneck
Date: Wed, 10 Nov 2004 16:48:45 -0500 [thread overview]
Message-ID: <20041110214845.GU1102@cs.duke.edu> (raw)
I ran some iperf tests today and it looks like the etherbridge
is the limiting factor on throughput. In the beforetime, I saw great
throughput to the VMs; over 800 Mbps. With the bridge, the numbers
are in the 400s somewhere.
Is this the speed I can expect from the bridge?
Is there some tuning I should try, or another way to get more bandwidth
into the VMs?
This is with xen-2.0, 2.4.27-xen0 and 2.4.27-xenU.
My iperf numbers:
940 Mbps stock linux -> stock linux
470 Mbps stock linux -> xenU
533 Mbps xenU -> stock linux
ether bridge speed
533 Mbps xenU -> xen0 on the same host
422 Mbps xen0 -> xenU on the same host
loopback speed
4.4 Gbps stock linux
3.2 Gbps xenU
3.2 Gbps xen0
(stock linux is 2.4.25)
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next reply other threads:[~2004-11-10 21:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-10 21:48 David Becker [this message]
2004-11-11 12:00 ` etherbridge bottleneck Bin Ren
2004-11-11 14:56 ` David Becker
-- strict thread matches above, loose matches on Subject: below --
2004-11-12 8:42 Ian Pratt
2004-11-14 19:53 Ian Pratt
2004-11-15 16:01 ` David Becker
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