Terrible performance of XenServer 6.2 and FreeBSD 10.0-RELEASE guest

[Jay West]

Freebsd shutdown -h has never worked "right" (what is right behavior is
subjective) on xenserver. If the guest utilities are installed, use
Xencenter to shutdown. If not, or, if you just prefer command line - you'll
find that shutdown -p will actually take the vm down "correctly".

Also - the slow screen display inside xencenter console has also always been
an issue. I've never seen it work well. Not sure if this is a freebsd or xen
based (with freebsd, as other guest os's seem to get it right) issue. Would
love to see it fixed, but... we only use the xencenter console for freebsd
long enough to assign an IP and open up ssh ;)

Jay West, President
EZwind.net
11 The Pines Court, Suite B
Chesterfield, MO 63141
P: 314-781-1800
F: 314-558-9284
E: jwest at ezwind.net
W: www.ezwind.net


-----Original Message-----
From: owner-freebsd-xen at freebsd.org [mailto:owner-freebsd-xen at freebsd.org]
On Behalf Of Big Lebowski
Sent: Saturday, March 29, 2014 9:17 AM
To: freebsd-xen at freebsd.org
Subject: Re: Terrible performance of XenServer 6.2 and FreeBSD 10.0-RELEASE
guest

In addition to that, I've also noticed  that even with xe guest utilitiest
installed and started, neither halt nor shutdown -h now are working (they
seem to stop the guest OS, but the vm stays up for the hypervisor and needs
to be forced to shutdown/restart) and that the XenCenter console is not
refreshing properly (it requires some additional movement, like cursor keys
being used to refresh the screen).

Regards,
BL


On Sat, Mar 29, 2014 at 12:38 PM, Big Lebowski
<spankthespam at gmail.com>wrote:

> Hi all,
>
> I've just installed XenServer 6.2 along with all latest patches (SP1 
> and
> 014 update) on a machine that was previously a bare metal FreeBSD 
> 9.2-R installation, running fast and smooth.
>
> That machine is a Quad Core cpu with 32GB of RAM:
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 58
> model name : Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz stepping : 9 cpu 
> MHz : 3400.086 cache size : 8192 KB physical id : 0 siblings : 1 core 
> id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fdiv_bug : no 
> hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes 
> cpuid level : 13 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep 
> mtrr mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht nx constant_tsc 
> nonstop_tsc aperfmperf pni pclmulqdq vmx est ssse3 sse4_1 sse4_2 
> x2apic popcnt aes hypervisor ida arat tpr_shadow vnmi flexpriority ept 
> vpid bogomips : 6835.86 clflush size : 64 cache_alignment : 64 address 
> sizes : 36 bits physical, 48 bits virtual power management:
>
> and 2x 3TB SATA disks connected in software raid 1 (mdraid).
>
> After performing the updates on XenServer, I've installed first vm, 
> FreeBSD 10.0-R amd64:
>
> FreeBSD poudriere 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16
> 22:34:59 UTC 2014     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC
>  amd64
>
> with 8 vcpu's, 8GB of RAM, and two vdisks, 8GB for /, and 100GB for 
> /poudriere (both mounted with noatime). After playing a while with the 
> vm (installing pkg, peforming portsnap fetch extract, installing 
> poudriere) I've noticed extremely poor performance:
>
> * portsnap extract can take over 20 minutes to dump the ports tree
> * svnlite checkout of head/base takes ages and while it is happening, 
> the vm is almost unusable: it freezes periodicaly so even typing in 
> console is impossible, ls -la /usr/src takes few seconds to execute, 
> the svnlite process displays checked files in chunks (it runs for a 
> while, freezes, runs for a while again, and so on)
>
> I wonder if there's anything I am missing in running FreeBSD as 
> XenServer guest? Linux vms on the same XenServer host are running 
> faster by orders of magnitude, and fbsd is not just slower, its unusable.
>
> I'd appreciate any help!
>
> Regards,
> BL.
>
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