From: Paul Lalonde <plalonde@telus.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] a quick comparison of qemu and xen
Date: Tue, 13 Feb 2007 20:24:21 -0800 [thread overview]
Message-ID: <2545B9F2-9225-4910-B9BF-8247DF4999A6@telus.net> (raw)
In-Reply-To: <13426df10702131910h1dd5cdafi4efd585692b4a842@mail.gmail.com>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
IIRC, without kqemu, qemu does actual per-instruction emulation, even
if running on the same platform.
15:1 is actually pretty impressive!
Paul
On 13-Feb-07, at 7:10 PM, ron minnich wrote:
> this is qemu without kqemu, since I have had problems with that.
>
> build a kernel, for ppc (bg/l really)
>
> qemu: 4 minutes
>
> 59.86u 53.93s 233.60r mk
>
> xen 3
> 4.90u 5.06s 15.89r mk
>
> This is the identical tree, I tar'ed it up from the qemu instance, put
> it in the xen instance, and typed
> mk clean && mk
> in each one.
>
> that's a ratio of roughly 15:1. Yes, surprised me too. I will try to
> get a qemu with a working kqemu to do a more fair comparison.
>
> ron
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Darwin)
iD8DBQFF0o71pJeHo/Fbu1wRArGwAJ9MpHZS+5WKdxCyOV5hQ/C0uuqqZwCgukdF
RZOM/oWSkvIj2IjIZxYCsNY=
=BlnQ
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2007-02-14 4:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-14 3:10 ron minnich
2007-02-14 4:24 ` Paul Lalonde [this message]
2007-02-14 4:42 ` ron minnich
2007-02-14 7:27 ` Paul Lalonde
2007-02-14 14:13 ` ron minnich
2007-02-14 14:30 ` Paul Lalonde
2007-02-14 14:34 ` erik quanstrom
2007-02-14 16:34 ` Paul Lalonde
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2545B9F2-9225-4910-B9BF-8247DF4999A6@telus.net \
--to=plalonde@telus.net \
--cc=9fans@cse.psu.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).