Re: [Xen-users] New binary release of GPL PV drivers for Windows

[Stephan Seitz <s.seitz@xxxxxxxxxxxx>]

Hi Pasi,

I wasn't able to get Windows XP Professional x64 running with gplpv until
James released 0.8.0 if his great drivers.

So my answer is a bit delayed:

Equipment: core2 duo, 2,66GHz, Areca PCI-X Raid 6 over 8 disks


System is running Xen 3.2.0 64bit, dom0 is 2.6.18.8

Tested HVM domU is running XP Pro x64, Version 2003, SP 2, tested with iometer 
2006-07-27 stable.

--- Disk/IO using a gplpv'd disk:

pattern: 4k, 50% read, 50% write

        total iops:             ~14180
                read            ~7045-7065
                write           ~7025-7045
        total MB/s:             ~55
                read            ~27.5
                write           ~27.5 (looks like 50%...)

        avg IO response time:   ~0.071 ms
        max IO response time:   ~19.438 ms
        cpu utilization:        0% (??)

pattern: 32k, 50% read, 50% write

        total iops:             ~6900
                read            ~3435
                write           ~3450
        total MB/s:             ~215
                read            ~107.5
                write           ~107.5

        avg IO response time:   ~0.145 ms
        max IO response time:   ~21.525 ms
        cpu utilization:        ~5.52%


pure read operations with 32k pattern shows about 280 MB/s throughput
pure write operation with 512B pattern shows about 8.5 MB/s througput


--- Disk/IO using a QEMU disk:

pattern: 4k, 50% read, 50% write

        total iops:             ~3650
                read            ~1828
                write           ~1790
        total MB/s:             ~14
                read            ~7
                write           ~7

        avg IO response time:   ~0.276 ms
        max IO response time:   ~55.242 ms
        cpu utilization:        98.7%

pattern: 32k, 50% read, 50% write

        total iops:             ~3064
                read            ~1370-1390
                write           ~1360
        total MB/s:             ~84
                read            ~42-44
                write           ~40-42

        avg IO response time:   ~0.387 ms
        max IO response time:   ~77.450 ms
        cpu utilization:        ~76.8%


pure read operations with 32k pattern shows about 94 MB/s throughput
pure write operation with 512B pattern shows about 1.8 MB/s througput



--- (filebased) disk IO at dom0 (random, using dbench):

        10 workers on ext3,defaults: ~660 MB/s
        10 workers on xfs,defaults: ~620 MB/s

hdparm shows 3.3 GB/s cached and 366 MB/s buffered



Pasi Kärkkäinen schrieb:
> On Tue, Feb 05, 2008 at 10:22:55AM +0200, Pasi Kärkkäinen wrote:
> > On Mon, Feb 04, 2008 at 06:21:41PM +0200, Pasi Kärkkäinen wrote:
> > > On Sun, Feb 03, 2008 at 12:30:51PM +0100, Stephan Seitz wrote:
> > > > If someone knows a Windows Benchmarking Suite, I'll do real tests. I know my
> > > > recent tests are not comparable to any value, but I'm a little bit 
> > > > handycapped
> > > > on windows ;)
> > > You could use IOmeter http://www.iometer.org. It's a widely used disk
> > > benchmarking tool on Windows.
> > >
> > > It's easy to run benchmarks using different requests sizes, different number
> > > of outstanding io's etc..
> > With small requests sizes (512 bytes or 4k) you can measure how many IOPS
> > (IO operations per second) you can get, and with big request sizes (64+ kB)
> > you can measure how much throughput you can get..
> >
> > Changing the number of outstanding IO's means how many IO operations are
> > active at the same time (optimal values depends on the storage used, and on
> > the queue depth of the hardware, drivers and kernel). 
> >
> > Note that IOmeter wants to use raw disk devices, so don't create any
> > partitions or format the disk before using IOmeter.
> And please share your benchmarking results :)
>
> -- Pasi

--
Stephan Seitz
Senior System Administrator

*netz-haut* e.K.
multimediale kommunikation

zweierweg 22
97074 würzburg

fon: +49 931 2876247
fax: +49 931 2876248

web: www.netz-haut.de <http://www.netz-haut.de/>

registriergericht: amtsgericht würzburg, hra 5054

Attachment: s_seitz.vcf
Description: Vcard

Attachment: signature.asc
Description: OpenPGP digital signature

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