Re: is it possible to set txqueuelen on vnetX devices automatically

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

 



On Mon, Apr 02, 2012 at 05:15:55PM +0100, Tim Hughes wrote:
> Hello,
> 
> We have been tuning our libvirt hosts and discovered that setting the
> txqueuelen on vnetX devices to 2500 we can increase the network throughput
> by a factor of almost 10. On an eth device it can be set by  hand/rc.local
> with the following instructions
> http://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txqueuelen/
> .  Because vnetX devices are named on a 'first free' basis and they come
> and go with the guests the rc.local method is not going to work. I think
> this needs to be done via libvirt or possibly udev, maybe with some kind of
> hook. Ideally I would like to be able to set this automatically for all
> vnetX devices when they are created or even better, on a per guest basis.

You can probably do this with a hook script:

  http://libvirt.org/hooks.html

Please also file a BZ requesting that this tunable be directly supported
by libvirt.

Daniel
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc :|

--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list


[Index of Archives]     [Virt Tools]     [Libvirt Users]     [Lib OS Info]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [KDE Users]     [Fedora Tools]