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Re: [Qemu-devel] Qemu speed vs vmplayer?
From: |
Lonnie Mendez |
Subject: |
Re: [Qemu-devel] Qemu speed vs vmplayer? |
Date: |
Fri, 15 Dec 2006 15:33:03 -0600 |
On Fri, 2006-12-15 at 17:20 -0500, Joseph Miller wrote:
> I've got a copy of today's CVS, I was just assuming, since this is the
> qemu-devel mailing list, that someone on the list who regularly works on
> the qemu code would probably know more about this than I do. I have
> some assembly background, and I'm not afraid to start digging into x86
> cpu internals, but I would like a starting point. I'm really trying to
> figure out something specific about qemu. When running Qemu+KQEMU for
> linux-x86 host on WinXP x86 guest, top shows that 70% or more of my cpu
> is being use in the system portion. When using vmplayer (free), top
> shows less than 5% of my cpu in the system portion. vmplayer seems to
> be a LOT faster than Qemu, however I would prefer to use Qemu. I have a
> P4 2.6GHz host system with 1.5G RAM and 512MB RAM allocated to my guest
> OS's. Does anyone know the reason behind the slowdown? Is anyone
> familiar with what Qemu is so busy doing whilst sitting idle? I should
> note that I have compiled the KQemu into my 2.6 kernel instead of
> loading it as a module. I have found better performance with it this
> way. Any insight from a developer would be most appreciated.
Are you using the -kernel-kqemu switch? I see idle usage of 6-10% with
kqemu using -kernel-kqemu on windows xp guest. kqemu is closed source
software. If you want a starting point for improving the acceleration
portion then start by improving qvm86 (the GPL'ed accelerator).
- Re: [Qemu-devel] About performance of qemu-system-arm, (continued)
- Re: [Qemu-devel] About performance of qemu-system-arm, Martin Guy, 2006/12/13
- [Qemu-devel] qemu-system-* using mmap?, Tim Olson, 2006/12/13
- Re: [Qemu-devel] qemu-system-* using mmap?, Paul Brook, 2006/12/13
- Re: [Qemu-devel] qemu-system-* using mmap?, Joseph Miller, 2006/12/13
- Re: [Qemu-devel] qemu-system-* using mmap?, Tim Olson, 2006/12/14
- Re: [Qemu-devel] using mmap?, Joseph Miller, 2006/12/14
- Re: [Qemu-devel] using mmap?, Paul Brook, 2006/12/14
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Joseph Miller, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Paul Brook, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Joseph Miller, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?,
Lonnie Mendez <=
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Paul Brook, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Christian MICHON, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Lonnie Mendez, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Paul Brook, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Christian MICHON, 2006/12/15
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Paul Brook, 2006/12/15
- Message not available
- Message not available
- Message not available
- Re: [Qemu-devel] Qemu speed vs vmplayer?, it, 2006/12/17
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Lonnie Mendez, 2006/12/17
- Re: [Qemu-devel] Qemu speed w/ USB tablet emulation, Joseph Miller, 2006/12/19
- Re: [Qemu-devel] Qemu speed vs vmplayer?, Jamie Lokier, 2006/12/16