Hi everyone, I''ve got a problem with my DomUs. When I upload files to a DomU, I can use my full bandwidth but when I try to download something from it, I''ve got only about 30kB/s or even less. I''m in the same LAN so it should be something in the MB/s range. Would be great if someone has got an idea on how to solve this problem. Best regards, Adalbert _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Adalbert, Am Dienstag, den 10.02.2009, 20:06 +0100 schrieb Adalbert Miller:> Hi everyone, > I''ve got a problem with my DomUs. When I upload files to a DomU, I can > use my full bandwidth but when I try to download something from it, > I''ve got only about 30kB/s or even less. I''m in the same LAN so it > should be something in the MB/s range.Just a question: Are you using Ubuntu as dom0?> > Would be great if someone has got an idea on how to solve this problem.Regards, Thomas> Best regards, > Adalbert > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Adalbert, Am Dienstag, den 10.02.2009, 20:31 +0100 schrieb Adalbert Miller:> Hi Thomas, > > > Just a question: > > Are you using Ubuntu as dom0? > > Yes, that''s correct :)The Problem is that the Ubuntu-XEN-Kernel really suck - no throughput, not stable under heavy_load --> Kernel oopses and so on... Kick Ubuntu, Install Debian Lenny and you get High-Performance ;) Lenny has XEN 3.2.1 and Kernel 2.6.26-xen, which should be equivalent to Hardy. And as God will Lenny will become stable on Saturday ;)> > Best regards, > AdalbertRegards, Thomas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Thomas, thanks very much for your help, I''ll give it a try :) Best regards, Adalbert _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Adalbert, Am 10.02.2009 um 20:06 schrieb Adalbert Miller:> Hi everyone, > I''ve got a problem with my DomUs. When I upload files to a DomU, I can > use my full bandwidth but when I try to download something from it, > I''ve got only about 30kB/s or even less. I''m in the same LAN so it > should be something in the MB/s range.This sounds very familiar to a problem I had with my Ubuntu Hardy DomUs. You might want to try this command: ethtool -K eth0 tx off Hope this helps, Paul. -- Paul Schulze Mail: avlex82@gmail.com Why can''t a programmer tell the difference between Halloween and Christmas? Because OCT31 = DEC25. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Good to know. I was about to convert an Ubuntu HVM to a paravirt domU. Better leave at HVM. - Brian On Feb 10, 2009, at 11:40 AM, Thomas Halinka wrote:> Hi Adalbert, > > Am Dienstag, den 10.02.2009, 20:31 +0100 schrieb Adalbert Miller: >> Hi Thomas, >> >>> Just a question: >>> Are you using Ubuntu as dom0? >> >> Yes, that''s correct :) > > The Problem is that the Ubuntu-XEN-Kernel really suck - no throughput, > not stable under heavy_load --> Kernel oopses and so on... > > Kick Ubuntu, Install Debian Lenny and you get High-Performance ;) > > Lenny has XEN 3.2.1 and Kernel 2.6.26-xen, which should be > equivalent to > Hardy. And as God will Lenny will become stable on Saturday ;) > >> >> Best regards, >> Adalbert > > Regards, > > Thomas > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
--- On Tue, 2/10/09, Paul Schulze <avlex@gmx.net> wrote:
From: Paul Schulze <avlex@gmx.net>
Subject: Re: [Xen-users] Low download rate from DomU
To: "Adalbert Miller" <adalbert.miller@gmail.com>
Cc: xen-users@lists.xensource.com
Date: Tuesday, February 10, 2009, 2:50 PM
Hi Adalbert,
Am 10.02.2009 um 20:06 schrieb Adalbert Miller:
Hi everyone,
I''ve got a problem with my DomUs. When I upload files to a DomU, I can
use my full bandwidth but when I try to download something from it,
I''ve got only about 30kB/s or even less. I''m in the same LAN
so it
should be something in the MB/s range.
This sounds very familiar to a problem I had with my Ubuntu Hardy DomUs. You
might want to try this command:
ethtool -K eth0 tx off
***********************************************
You disable checksums offloading at DomUs ?
***********************************************
Hope this helps,
Paul.
--Paul SchulzeMail: avlex82@gmail.com
Why can''t a programmer tell the difference between Halloween and
Christmas? Because OCT31 = DEC25.
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Hi Paul, unfortunately I already know the "ethtool -K eth0 tx off"-trick and afaik this only helps if the whole network traffic is low and not just the traffic from the DomU, out to the rest of LAN. Anyway, I already tried it out but there was no effect :( I''ll do what Thomas has recommended and use Debian instead of Ubuntu. Best regards, Adalbert On Tue, Feb 10, 2009 at 8:50 PM, Paul Schulze <avlex@gmx.net> wrote:> Hi Adalbert, > Am 10.02.2009 um 20:06 schrieb Adalbert Miller: > > Hi everyone, > I''ve got a problem with my DomUs. When I upload files to a DomU, I can > use my full bandwidth but when I try to download something from it, > I''ve got only about 30kB/s or even less. I''m in the same LAN so it > should be something in the MB/s range. > > This sounds very familiar to a problem I had with my Ubuntu Hardy DomUs. You > might want to try this command: > ethtool -K eth0 tx off > Hope this helps, > > Paul. > -- > Paul Schulze > Mail: avlex82@gmail.com > Why can''t a programmer tell the difference between Halloween and Christmas? > Because OCT31 = DEC25. >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Thomas Halinka wrote:> The Problem is that the Ubuntu-XEN-Kernel really suck - no throughput, > not stable under heavy_load --> Kernel oopses and so on...Isn''t that the definition of Ubuntu? When I saw that Intrepid was released with an impressive list of bugs still in the Debian BTS, simply imported in Ubuntu from SID without any care, I realized how bad this distro is. I knew already it was bad, but I didn''t know how much. NO WAY I''m going to use Ubuntu for a server, ever... Funny that Ubuntu guys are releasing quite about the same time the next version of Ubuntu just at the same moment Lenny is out (the next Ubuntu is said to be out this month as well...). Thomas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Feb 11, 2009 at 12:19 PM, Thomas Goirand <thomas@goirand.fr> wrote:> Thomas Halinka wrote: >> The Problem is that the Ubuntu-XEN-Kernel really suck - no throughput, >> not stable under heavy_load --> Kernel oopses and so on... > > Isn''t that the definition of Ubuntu? > > When I saw that Intrepid was released with an impressive list of bugs > still in the Debian BTS, simply imported in Ubuntu from SID without any > care, I realized how bad this distro is.Perhaps it''s because ubuntu focuses on scheduled, quick releases, much like Fedora or Opensolaris.> I knew already it was bad, but > I didn''t know how much. NO WAY I''m going to use Ubuntu for a server,I use Ubuntu Intrepid on my desktop to get the latest stuff, even with some known bugs that has forced me to downgrade some packages to the ones from Hardy. That being said, I kinda agree with you on server part :)> ever... Funny that Ubuntu guys are releasing quite about the same time > the next version of Ubuntu just at the same moment Lenny is out (the > next Ubuntu is said to be out this month as well...).Nah. I believe it''s simply because it''s time for another scheduled release (every April and October, I think). _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Fajar A. Nugraha wrote:> Perhaps it''s because ubuntu focuses on scheduled, quick releases, much > like Fedora or Opensolaris.Fedora is to RedHat what SID is to Debian stable. Not relevant ...> I use Ubuntu Intrepid on my desktop to get the latest stuff, even with > some known bugs that has forced me to downgrade some packages to the > ones from Hardy.What latest stuff do you *really* need that you can''t backport yourself?> Nah. I believe it''s simply because it''s time for another scheduled > release (every April and October, I think).We are in February, AFAIK! :) Thomas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Wed, Feb 11, 2009 at 11:56 PM, Thomas Goirand <thomas@goirand.fr> wrote:>> Nah. I believe it''s simply because it''s time for another scheduled >> release (every April and October, I think). > > We are in February, AFAIK! :)Oh, are you talking about Ubuntu 8.04.2? I thought you''re refering to the next 9.04. Sorry for the confusion :) _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi everyone, I really don''t want to interrupt you discussion about Linux distributions but I just want to inform this list, that I''ve found a solution for my Problem and it was even written in the XENFaq *ouch*: http://wiki.xensource.com/xenwiki/XenFaq#head-5e286e9bb5cf043f6534c917bc231af2af6adce2 Best regards, Adalbert _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Thu, Feb 12, 2009 at 9:03 PM, Adalbert Miller <adalbert.miller@gmail.com> wrote:> I''ve found a > solution for my Problem and it was even written in the XENFaq *ouch*:Good for you then :) _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users