Re: [Xen-users] Looking for Xen success stories in a production data center environment

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, May 11, 2009 at 08:11:52AM -0700, Joe Armstrong wrote:
> 
> 
> 
> Pasi Kärkkäinen wrote:
> > 
> > 
> > Hopefully someone can come up with benchmarks/numbers.
> > 
> > You could always run your own benchmarks? :-)
> > 
> > 
> 
> Yes - I did that first thing... and got number for  both disk and network
> I/O to within 1 or 2 % of native... nice.
> 
> But, my little setup is not even close to a "real data center" setup, and no
> way I can get stability data in a few days of running small tests.  I was
> hoping somebody (Oh, I don't know, maybe from Amazon...) would cough up some
> really good data on stability & I/O performance.  Or maybe somebody out
> there would know where to find it.  I'm looking but not a lot of luck so
> far.  But if I find some I'll post it.
> 

$ xm info
system                 : Linux
host                   : hostname
release                : 2.6.11-xen0
version                : #1 Mon Apr 4 13:51:34 EEST 2005
machine                : i686
cores                  : 2
hyperthreads_per_core  : 1
cpu_mhz                : 996
memory                 : 1663
free_memory            : 1259

$ uptime
 09:01:18 up 880 days, 16:48,  1 user,  load average: 0.00, 0.00, 0.00

That's old Xen 2.0 host running a couple of domUs.. no problems at all with 
stability :)
last time it was down because of fan getting broken and the heat crashing the 
host..


Another Xen 3.0 host:

# xm info
host                   : hostname.localdomain
release                : 2.6.18-92.1.10.el5xen
version                : #1 SMP Tue Aug 5 08:46:32 EDT 2008
machine                : i686
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 3010
hw_caps                : 
bfebfbff:20000000:00000000:00000180:0000e43d:00000000:00000001
total_memory           : 4095
free_memory            : 83
node_to_cpu            : node0:0-1
xen_major              : 3
xen_minor              : 1
xen_extra              : .2-92.1.10.el5
xen_caps               : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)
cc_compile_by          : mockbuild
cc_compile_domain      : centos.org
cc_compile_date        : Tue Aug  5 07:34:25 EDT 2008
xend_config_format     : 2

# uptime
 09:05:07 up 271 days, 20:48,  1 user,  load average: 0.01, 0.01, 0.00

That one is running multiple Linux domUs.. both debian and rhel/centos.
271 days ago it was rebooted because of Xen (centos) upgrade.

Hopefully others can give you more numbers/comments.

-- Pasi

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users