[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-users] DomU to DomU throughput issue


  • To: Pasi Kärkkäinen <pasik@xxxxxx>
  • From: Fasiha Ashraf <feehapk@xxxxxxxxxxx>
  • Date: Thu, 17 Sep 2009 12:22:59 +0530 (IST)
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 16 Sep 2009 23:53:49 -0700
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.in; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=KqASwE6z3PEa2OFOfqR4Sfd4/m3KT+V/6KodQ+8UYwFhDkkPJ2lzETs/zVIwDLMwLRfxnUft94tShowpIcUiloTxfbvHHrCjZecSXvTiF82gQ126cKW1ZnZ+4ozfjB+qVfZ7WV6t6QeWGjvfdRIxeVH6PtfaqLphgW/xxN8Em8Q=;
  • List-id: Xen user discussion <xen-users.lists.xensource.com>




- Is domU <-> dom0 slow aswell?
No its working well the throughput is around 2000 to 3000 Mbps in this case
- Is domU <-> internet slow?
No, Its working well.

- Do you have errors on domU ethX interfaces?
No such errors seen.
- Do you have errors no dom0 interfaces (pethx, all bridges, all vifs).
No, errors
- Does domU or dom0 have high CPU-usage? What does "top" show in dom0,
  and in domU?
To the max 10 to 20%  while running netperf
- What does "xm top" say about CPU usage?
cpu usage 10 to 20%
- Do you have errors in the logs? Please check
    - dom0 dmesg
NO such messages
    - dom0 /var/log/messages
No messages else this

Sep 14 14:37:09 HPCNL-SR-2 kernel: vif1.0 (vif): not using net_device_ops yet

Sep 14 14:37:09 HPCNL-SR-2 NetworkManager: nm_device_ethernet_new: assertion `driver != NULL' failed

Sep 14 14:37:10 HPCNL-SR-2 kernel: device vif1.0 entered promiscuous mode

Sep 14 14:37:10 HPCNL-SR-2 kernel: eth0: topology change detected, propagating

Sep 14 14:37:10 HPCNL-SR-2 kernel: eth0: port 2(vif1.0) entering forwarding state

Sep 14 14:37:10 HPCNL-SR-2 logger: /etc/xen/scripts/vif-bridge: iptables setup failed. This may affect guest networking.

Sep 14 14:37:11 HPCNL-SR-2 avahi-daemon[1439]: Registering new address record for fe80::fcff:ffff:feff:ffff on vif1.0.*.

Sep 14 14:37:11 HPCNL-SR-2 kernel: blkback: ring-ref 8, event-channel 9, protocol 1 (x86_32-abi)

Sep 14 14:37:14 HPCNL-SR-2 nm-system-settings: Added default wired connection 'Auto vif1.0' for /org/freedesktop/Hal/devices/net_fe_ff_ff_ff_ff_ff

    - Xen log: "xm log"
    - Xen dmesg: "xm dmesg"
    - domU dmesg
    - domU /var/log/messaegs

What does that mean. I am trying all the other logs as well. thanks for your concern.

Regards,
Fasiha


Yahoo! India has a new look. Take a sneak peek.
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.