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From: Benjamin Budts <benjamin.budts-rJAIWvhRp0CZIoH1IeqzKA@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Couple of quetsions HD perf, mac address...
Date: Tue, 03 Jul 2007 11:43:23 +0200	[thread overview]
Message-ID: <468A1A3B.604@scarlet.be> (raw)


Hi there,

Sorry to bother the developpers list, I have couple of questions...

I've been testing kvm for couple of months with the following hardware :
S5000pal intel board
1x Duo Core Xeon 2.4
2048Gb DDR2 667 Ram
Western digital SATA 150 10K rpm disk.

I run kvm21 at the moment...(I need to upgrade asap of course ;) )

And have the following questions :

1* When i run hdparm -t /dev/sda1 I have 80-85Mbit/s read speed on my 
guest os (debian etch)

If I run it ''in'' a virtual machine (using also debian Etch with 
2.6.21.5 kernel) I get : 28-35Mbits...

I even tried to put the image on a seperate disk to be able to have 
more, but I can't get more then 35Mbits out of it...

How can I up the disk performance without having to replace everything 
by SCSI hardware ?

2* When will smp be supported in the VM ? Would love to test the 
performance by starting up the virtual machine with the -smp 2 
command...Kernel hangs at the moment
(I read you guys put it on the commit list, and you're working on it...)

3* When I specify a mac address for my debian virtual machine eth0 
changes to eth3 ... very very weird... it's not that bad, i just changed 
my interfaces config file from eth0 to eth3, but it's a bit weird

My windows xp seems to boot without a problem when specifying another 
mac addr

Did you guys have that problem  yet ? How can I fix it please ?


Keep up the good work, lovely product !

thx
Ben

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             reply	other threads:[~2007-07-03  9:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-03  9:43 Benjamin Budts [this message]
     [not found] ` <468A1A3B.604-rJAIWvhRp0CZIoH1IeqzKA@public.gmane.org>
2007-07-03 11:48   ` Couple of quetsions HD perf, mac address Dor Laor
2007-07-03 11:51   ` Laurent Vivier
     [not found]     ` <468A3F2A.4090601@scarlet.be>
     [not found]       ` <468A3F2A.4090601-rJAIWvhRp0CZIoH1IeqzKA@public.gmane.org>
2007-07-03 15:19         ` Laurent Vivier
  -- strict thread matches above, loose matches on Subject: below --
2007-07-03 11:08 Gregory Haskins
     [not found] ` <4689F5F10200005A00026F01-Igcdv/6uVdMHoYOw/+koYqIwWpluYiW7@public.gmane.org>
2007-07-03 11:21   ` Benjamin Budts
     [not found]     ` <468A312C.60904-rJAIWvhRp0CZIoH1IeqzKA@public.gmane.org>
2007-07-03 11:33       ` Laurent Vivier
2007-07-03 11:31 Gregory Haskins

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