Why xenU in grub.conf
by tournesol
Hi forks
Why xenU in grub.conf ? for what ?
title Fedora Core (2.6.16-1.2122_FC5xenU)
root (hd0,0)
kernel /vmlinuz-2.6.16-1.2122_FC5xenU ro root=/dev/VolGroup00/LogVol00
rhgb quiet
tournesol
17 years, 10 months
CfP Workshop on XEN in HPC Cluster and Grid Computing Environments (XHPC)
by Michael Alexander
===============================================================
CALL FOR PAPERS (XHPC'06)
Workshop on XEN in High-Performance Cluster and Grid Computing
Environments as part of:
The Fourth International Symposium on Parallel and Distributed
Processing and Applications (ISPA'2006). Sorrento, Italy
===============================================================
Date: 1-4 December 2006
ISPA'2006: http://www.ispa-conference.org/2006/
Workshop URL: http://xhpc.ai.wu-wien.ac.at/ws/
(due date: August 4, 2006)
Scope:
The Xen virtual machine monitor is reaching wide-spread adoption
in a variety of operating systems as well as scientific educational
and operational usage areas. With its low overhead, Xen allows for
concurrently running large numbers of virtual machines, providing
each encapsulation, isolation and network-wide CPU migratability.
Xen offers a network-wide abstraction layer of individual machine
resources to OS environments, thereby opening whole new cluster-and
grid high-performance computing (HPC) architectures and HPC services
options. With Xen finding applications in HPC environments, this
workshop aims to bring together researchers and practitioners active
on Xen in high-performance cluster and grid computing environments.
The workshop will be one day in length, composed of 20 min paper
presentations, each followed by 10 min discussion sections.
Presentations may be accompanied with interactive demonstrations.
The workshop will end with a 30 min panel discussion by presenters.
TOPICS
Topics include, but are not limited to, the following subject matters:
- Xen in cluster and grid environments
- Workload characterizations for Xen-based clusters
- Xen cluster and grid architectures
- Cluster reliability, fault-tolerance, and security
- Compute job entry and scheduling
- Compute workload load levelling
- Cluster and grid filesystems for Xen
- Research and education use cases
- VM cluster distribution algorithms
- MPI, PVM on virtual machines
- System sizing
- High-speed interconnects in Xen
- Xen extensions and utilities for cluster and grid computing
- Network architectures for Xen clusters
- Xen on large SMP machines
- Measuring performance
- Performance tuning of Xen domains
- Xen performance tuning on various load types
- Xen cluster/grid tools
- Management of Xen clusters
PAPER SUBMISSION
Papers submitted to each workshop will be reviewed by at least three
members of the program committee and external reviewers. Submissions
should include abstract, key words, the e-mail address of the
corresponding author, and must not exceed 15 pages, including tables
and figures, and preferably be in LaTeX or FrameMaker, although
submissions in the LNCS Word format will be accepted as well.
Electronic submission through the submission website is strongly
encouraged. Hardcopies will be accepted only if electronic submission
is not possible. Submission of a paper should be regarded as a
commitment that, should the paper be accepted, at least one of the
authors will register and attend the conference to present the work.
An award for best student paper will be given.
http://isda2006.ujn.edu.cn/isda/author/submit.php
Format should be according to the Springer LNCS Style
http://www.springer.de/comp/lncs/authors.html
It is expected that the proceedings of the workshop programs will
be published by Springer's LNCS series or IEEE CS.
IMPORTANT DATES
Paper submission due: August 4, 2006
Acceptance notification: September 1, 2006
Camera-ready due: September 20, 2006
Conference: December 1-4, 2006
CHAIR
Michael Alexander (chair), WU Vienna, Austria
Geyong Min (co-chair), University of Bradford, UK
Gudula Ruenger (co-chair), Chemnitz University of Technology, Germany
PROGRAM COMMITTEE
Franck Cappello, CNRS-Université Paris-Sud, France
Claudia Eckert, Fraunhofer-Institute, Germany
Rob Gardner, HP Labs, USA
Marcus Hardt, Forschungszentrum Karlsruhe, Germany
Sverre Jarp, CERN, Switzerland
Thomas Lange, University of Cologne, Germany
Ronald Luijten, IBM Research Laboratory, Zurich, Switzerland
Klaus Ita, WU Vienna, Austria
Franco Travostino, Nortel CTO Office, USA
Andreas Unterkircher, CERN, Switzerland
GENERAL INFORMATION
This workshop will be held as part of ISPA 2006 in Sorrento, Italy -
http://www.sorrentoinfo.com/sorrento/sorrento_italy.asp.
17 years, 10 months
Re: [Fedora-xen] slow disk performance in Xen0 FC5
by Thorsten von Eicken
> On Wed, 2006-05-31 at 23:07 -0700, Ashe Canvar wrote:
>
>> For instance my avg data read rate ( tested using hdparm -t /dev/hda)
>> is 55MB/s using the regular smp kernel but it falls to 2.6MB/s when I
>> boot into dom0. No other domains are runnign at this point. I have
>> looked for incrementing interrupts in ide0 , there are none.
>
> There were some important fixes to Xen's irq delivery mechanism that
> have been added to FC5 since the 1.2080 kernel you are running. Could
> you please try updating to a newer kernel and seeing if you can
> reproduce the problem?
Same problem here. Machine is dog slow whenever disk accesses are
required. Running yum takes ages. This is a dual-cpu 2.4Ghz xeon w/ATA
drive.
Running a stock FC5 kernel I get ~30MB/sec read or write bandwidth. With
xen kernel I get 3-7MB/s in dom0 and it varies a lot. Typically I see
the following in top (this was taken while running yum):
[root@medusa1 ~]# top
top - 16:19:22 up 11 min, 2 users, load average: 0.69, 1.63, 1.43
Tasks: 72 total, 1 running, 71 sleeping, 0 stopped, 0 zombie
Cpu(s): 7.4% us, 1.5% sy, 0.0% ni, 16.9% id, 0.0% wa, 74.2% hi, 0.0% si
Mem: 262308k total, 142696k used, 119612k free, 9072k buffers
Swap: 1052248k total, 0k used, 1052248k free, 49168k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2748 root 15 0 52860 42m 5268 S 49.9 16.5 0:48.33 yum
2778 root 17 0 2140 1004 808 R 10.2 0.4 0:01.75 top
368 root 16 0 0 0 0 S 0.6 0.0 0:04.00 kjournald
Note the high %hi!
At almost the same time:
[root@medusa1 ~]# iostat -x 10
Linux 2.6.16-1.2122_FC5xen0 (medusa1) 06/11/2006
avg-cpu: %user %nice %system %iowait %idle
1.02 0.00 64.62 0.00 34.36
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
hda 0.00 3.68 0.00 0.72 0.00 35.17 0.00 17.59
49.14 0.00 0.00 0.00 0.00
Almost no disk activity, but high system time. I'm pretty sure it was
not doing network I/O.
[root@medusa1 ~]# dmesg | head
Linux version 2.6.16-1.2122_FC5xen0
(bhcompile(a)hs20-bc1-3.build.redhat.com) (gcc version 4.1.0 20060304 (Red
Hat 4.1.0-3)) #1 SMP Sun May 21 15:34:43 EDT 2006
[root@medusa1 ~]# dmesg | egrep ATA
hda: ST380011A, ATA DISK drive
[root@medusa1 ~]# dmesg | egrep IDE
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ICH3: IDE controller at PCI slot 0000:00:1f.1
Well, the bottom line is that the machine is not usable like this. Grrr.
Thorsten
17 years, 10 months
Netrwork and updating questions
by Philip Rhoades
People,
Q1.
I have a FC5 machine "prix" that is directly connected to the Internet:
203.222.80.166
I am running xen on this machine and have setup a FC5 virtual machine:
192.168.10.10
If I alias prix with:
ifconfig eth0:0 192.168.10.1
I can ping the virtual machine but not the other way around - I guess I
need to sort out vifs? - on prix "brctl show" gives:
bridge name bridge id STP enabled interfaces
xenbr0 8000.feffffffffff no peth0
vif0.0
vif2.0
Q2.
I have just updated the kernel on prix to 2.6.16-1.2133_FC5xen0 - is
there a quick way of updating/re-creating the virtual machine
(2.6.16-1.2080_FC5smp)? - I don't want to have to download everything
twice (or more if I create more VMs) . .
Thanks,
Phil.
--
Philip Rhoades
Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275)
GPO Box 3411
Sydney NSW 2001
Australia
Mobile: +61:(0)411-185-652
Fax: +61:(0)2-8221-9599
E-mail: phil(a)pricom.com.au
17 years, 10 months
What is possible with vlan and xen ?
by Thomas von Steiger
Hi,
To work with xen clusters we need many network to manage this.
What is possible with setup vlan's for xen quests ?
Maybe in 2 years we have networkinterfaces with switch technologie like
virtualisation in cpu's.
Thomas
17 years, 10 months
FC5 Domain network setup, HELP
by Chris Vaughan
Hi,
I am trying to set up networking so that my domain can access the outside
world.
I used the following setup guide which got me a working XEN station.
http://www.fedoraproject.org/wiki/FedoraXenQuickstart
This is what my config file looks like:
kernel ="/boot/vmlinuz-2.6.16-1.2122_FC5xenU"
memory = 64
name = "rawhide"
nics = 1
disk = ['file:/home/chris/images/fedora.img,sda1,w']
vif = [ 'mac=aa:cc:00:00:00:ab, bridge=xenbr0' ]
dhcp="dhcp"
root = "/dev/sda1"
extra = "ro selinux=0 3"
Bridgeing and everything is setup by default.
What steps am I missing to get this running via dhcp or a static ip address?
Thanks,
Chris Vaughan
17 years, 10 months
Xenguest-install.py Tries to boot non-xen kernel Bad File Descriptor
by Demetri Mouratis
I've installed xen on top of FC5 as the dom0 and am running into
trouble starting my first domU. I'm following the
FedoraXenQuickstartFC5 here:
http://fedoraproject.org/wiki/FedoraXenQuickstartFC5
Here's the dom0:
[root@db4 ~]# uname -a
Linux db4.rnmd.net 2.6.16-1.2122_FC5xen0 #1 SMP Sun May 21 15:34:43
EDT 2006 i686 i686 i386 GNU/Linux
And the command to install:
[root@db4 ~]# xenguest-install.py -n xendomain1 -f
/home/xen/xendomain1 -s 25 -r 256 -l
http://ops1.rnmd.net/fedora/core/5/i386/os -x
ks=http://ops1.rnmd.net/kickstart/cfgs/ks-fedora-core-5-xen-guest.cfg
And the result:
sending termination signals...done
sending kill signals...done
disabling swap...
/dev/mapper/VolGroup00-LogVol01
unmounting filesystems...
/mnt/runtime done
disabling /dev/loop0
/proc done
/dev/pts done
/sys done
/tmp/ramfs done
/selinux done
/mnt/sysimage/boot done
/mnt/sysimage/proc done
/mnt/sysimage/sys done
/mnt/sysimage/selinux done
/mnt/sysimage/dev done
/mnt/sysimage done
rebooting system
Restarting system.
If your install completed successfully, you can restart your
guest by running 'xm create -c xendomain1'.
[root@db4 ~]# xm create -c xendomain1
Using config file "/etc/xen/xendomain1".
Going to boot Fedora Core (2.6.15-1.2054_FC5smp)
kernel: /vmlinuz-2.6.15-1.2054_FC5smp
initrd: /initrd-2.6.15-1.2054_FC5smp.img
Error: (9, 'Bad file descriptor')
It looks to me like the problem is that xm create is trying to boot a
non xen Kernel.
Anyone else seeing this behavior?
Thanks.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=192911
17 years, 10 months
Xen install of other than FC5 on FC5 Dom0
by Ian Kent
Hi all,
It appears that I can only build FC5 guests on my FC5 machine.
Anyone have any pointers to documentation that can explain creating
guests of another distribution, such as Rawhide, on my FC5 box?
Ian
17 years, 10 months
[patch] typo of kernel release
by Akio Takebe
Hi, Aron
I found typo.
Rpms name have extra "%".
Am I righit?
# ls RPMS/ia64/kernel-*
RPMS/ia64/kernel-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-debuginfo-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-devel-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-xen0-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-xen0-devel-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-xenU-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
RPMS/ia64/kernel-xenU-devel-2.6.16-%2.2232_FC6agriffis.2.ia64.rpm
Signed-off-by: Akio Takebe <takebe_akio(a)jp.fujitsu.com>
Best Regards,
Akio Takebe
17 years, 10 months
Problem starting a full virtualized Windows Guest
by Sven Oehme
Hi ,
i am running xen 3.0.2 on FC5 and try to setup a full virtualized Windows
Guest .
the installation Program starts , but as soon as it shows the text Windows
is starting in the left bottom, nothing more happens .
i am attaching all needed information's :
and a pic of the screen :
any ideas ??
i tried with the newest version today :
kernel-xen0-2.6.16-1.2202_FC6
kernel-xen0-devel-2.6.16-1.2200_FC6
xen-3.0.2-4
when i start the guest , the system freezes and just reboots .
Sven
17 years, 10 months
