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
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