Re: [Xen-users] Is LVM really that much slower than Container?

[Tim Kaufmann <tim@xxxxxxxxxxxxxx>]

Hi Fajar,

thanks a lot for your help!

> I missed the part in your earlier post saying that you use Ubuntu :)
> If I remember correctly some version of Ubuntu (maybe it still does?)
> have a bug in tap:aio. It's better to compile xen yourself.
Ah ok.

My dom0 is faster than your's, while my domU1 sucks :-)

Dom0
=====
root@automatix:~# dd if=/dev/zero of=/root/test400M bs=1024k count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB) copied, 0,749079 s, 560 MB/s

root@automatix:~# time (cp test400M test400M2;sync)
real    0m2.622s
user    0m0.030s
sys     0m0.900s


DomU1
======
root@xplvm:~# dd if=/dev/zero of=/home/Tim/test400M bs=1024k count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB) copied, 85,723 s, 4,9 MB/s

root@xplvm:~# time (cp test400M test400M2;sync)
real    1m21.387s
user    0m0.070s
sys     0m0.991s

Tim


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