<html dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style id="owaParaStyle" type="text/css">P {margin-top:0;margin-bottom:0;}</style>
</head>
<body ocsi="0" fpstyle="1">
<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi Zeus,<br>
<br>
Do you know if Qemu can use a physical partition?<br>
<br>
It's doable in VMware and VirtualBox by creating a special vmdx file that actually maps to specific physical partitions. The setup I've found most helpful is to use a floppy img with GRUB, to include a config from the physical partition. That way it's ultra
fast to push changes in my code plus all the speed benefits of a physical disk.<br>
<br>
Unfortunately VirtualBox stopped working after the latest update and I've had no time to investigate why.<br>
<br>
cheers,<br>
Georgios<br>
<br>
<br>
<div style="font-family: Times New Roman; color: #000000; font-size: 16px">
<hr tabindex="-1">
<div style="direction: ltr;" id="divRpF242745"><font color="#000000" face="Tahoma" size="2"><b>From:</b> zeus@aluzina.org [zeus@aluzina.org] on behalf of Zeus Gómez Marmolejo [zeus.gomez@bsc.es]<br>
<b>Sent:</b> Tuesday, July 17, 2012 15:17<br>
<b>To:</b> Georgios Varisteas<br>
<b>Cc:</b> barrelfish-users@lists.inf.ethz.ch<br>
<b>Subject:</b> Re: [Barrelfish-users] GRUB really slow in qemu-kvm<br>
</font><br>
</div>
<div></div>
<div>Yes, I've been experiencing this problem for long time.
<div><br>
</div>
<div>The only thing I can say that it's related to the TFTP emulation that QEMU is doing. If you load the modules from a virtual hard drive, it's booting much faster.</div>
<div><br>
</div>
<div>It would be great to solve this issue by either submitting a patch to QEMU or changing the boot media on GRUB.<br>
<br>
zeus.<br>
<br>
<div class="gmail_quote">2012/7/17 Georgios Varisteas <span dir="ltr"><<a href="mailto:yorgos@kth.se" target="_blank">yorgos@kth.se</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
Hi,<br>
<br>
I recently tried running BF under qemu with kvm-intel. It runs 10x faster than without kvm. However GRUB is a lot slower in loading the modules which in overall means no actual gain. Any hints on why is that and maybe how to solve it?<br>
<br>
cheers,<br>
Georgios<br>
<br>
_______________________________________________<br>
Barrelfish-users mailing list<br>
<a href="mailto:Barrelfish-users@lists.inf.ethz.ch" target="_blank">Barrelfish-users@lists.inf.ethz.ch</a><br>
<a href="https://lists.inf.ethz.ch/mailman/listinfo/barrelfish-users" target="_blank">https://lists.inf.ethz.ch/mailman/listinfo/barrelfish-users</a><br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
Zeus Gómez Marmolejo<br>
Barcelona Supercomputing Center<br>
PhD student<br>
<a href="http://www.bsc.es" target="_blank">http://www.bsc.es</a><br>
<br>
<br>
</div>
</div>
</div>
</div>
</body>
</html>