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Author: ron minnichron minnich Date: Apr 23, 2008 11:09
this new lguest port pulls us forward to 2.6.25 with the new virtio
interface (ericvh git branch still I guess -- eric?)
works fine with thx9 images. I am booting them now.
Feels peppier but kernel build still slow -- 90 seconds.
if interested, let me know.
ron
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Author: Eric Van HensbergenEric Van Hensbergen Date: Apr 23, 2008 11:14
On Wed, Apr 23, 2008 at 1:01 PM, ron minnich gmail.com> wrote:> this new lguest port pulls us forward to 2.6.25 with the new virtio
> interface (ericvh git branch still I guess -- eric?)
>
That tree is slightly stale with respect to mainline
-- you may want
to merge up to make sure. Shouldn't break anything, but there may be
some subtle changes between when I branched and 2.6.25 final.
-eric
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Author: Juan M. MendezJuan M. Mendez Date: Apr 23, 2008 12:26
On 23/04/2008, ron minnich gmail.com> wrote:> this new lguest port pulls us forward to 2.6.25 with the new virtio
> interface (ericvh git branch still I guess -- eric?)
>
> works fine with thx9 images. I am booting them now.
>
> Feels peppier but kernel build still slow -- 90 seconds.
>
> if interested, let me know.
I'm interested Ron, Any change to thnx to get it working with new lguest?
--
Fidonet: 2:345/432.2
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Author: Stefan HajnocziStefan Hajnoczi Date: Apr 23, 2008 13:35
I am interested :). Is there a URL or contrib path to get this stuff?
Thanks,
Stefan
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Author: ron minnichron minnich Date: Apr 23, 2008 16:00
On Wed, Apr 23, 2008 at 12:21 PM, Juan M. Mendez gmail.com> wrote:
> I'm interested Ron, Any change to thnx to get it working with new lguest?
have not tested with full up thnx yet. I am going to pull down a
release 2.6.25 and make sure it still works with that.
contrib/rminnich/lguest/lg25.tgz
sample linux config file there too.
Also my current 9lguestcpu kernel, 9lguestcpu.2.6.25.elf
to make: tar file includes bin/rc/lguest, to set up paths.
I boot a qemu image and bulid from there, but
cd
tar xvf lg25.tgz
mkdir -p src/ip src/boot src/port src/pc
lguest
cd src/lguest25
mk
and away you go.
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Author: ron minnichron minnich Date: Apr 23, 2008 16:03
oh yes, to install lguest, you MUST:
modprobe lg syscall_vector=64
This sets the right syscall vector.
ron
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Author: erik quanstromerik quanstrom Date: Apr 23, 2008 16:33
> Disk IO is not great, net IO seems pretty good. I don't have a stable
> timebase on lguest, evidently, or I would run netpipe to test.
just put it up on a tee: why not use aoe?
- erik
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Author: ron minnichron minnich Date: Apr 23, 2008 16:42
On Wed, Apr 23, 2008 at 4:22 PM, erik quanstrom quanstro.net> wrote:
> just put it up on a tee: why not use aoe?
I had not even thought of that. How do you recommend setting it up?
ron
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Author: erik quanstromerik quanstrom Date: Apr 23, 2008 16:57
>> just put it up on a tee: why not use aoe?
>
> I had not even thought of that. How do you recommend setting it up?
>
> ron
i probablly don't know enough about your setup to answer that well.
but here;s an idea nonetheless.
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Author: Eric Van HensbergenEric Van Hensbergen Date: Apr 23, 2008 17:14
On Wed, Apr 23, 2008 at 6:22 PM, erik quanstrom quanstro.net> wrote:>> Disk IO is not great, net IO seems pretty good. I don't have a stable
>> timebase on lguest, evidently, or I would run netpipe to test.
>
> just put it up on a tee: why not use aoe?
>
The problems of disk I/O are largely a focus issue -- all this stuff
is pretty new and they focused on the network mechanisms first because
those were the ones where the competition has published the most
compelling benchmarks. The disk stuff will get tuned out and will
likely outperform network for I/O. As an example, 9P directly over
virtio beats NFS/TCP/virtio-net by 70%% without cacheing or
optimization in 9P (which is usually the opposite case on
unvirtualized hardware due to cacheing and what not).
-eric
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