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Re: [Qemu-devel] [PATCH] OSX x86_32 host support
From: |
Johannes Schindelin |
Subject: |
Re: [Qemu-devel] [PATCH] OSX x86_32 host support |
Date: |
Tue, 15 Jan 2008 16:56:37 +0000 (GMT) |
User-agent: |
Alpine 1.00 (DEB 882 2007-12-20) |
Hi,
On Tue, 15 Jan 2008, Alexander Graf wrote:
> Jamie Lokier wrote:
> > Alexander Graf wrote:
> >
> >> I believe the 5% performance hit that goes with them is no real
> >> problem, as most people should be using x86_64 nowadays anyway.
> >
> > *Boggle*! x86_64 is only a few years old, and cheap low-power x86_64
> > laptops are relatively recent.
>
> So you really want to do dynamic retranslation on ancient hardware?
Isn't it a little bit selfish to leave all those poor people behind who
just plainly cannot _afford_ better hardware?
> To me emulated systems already feel slow on really recent machines, I
> don't want to go back to something even slower.
Yes, keep on rubbing it in.
> If you use kqemu there even is near no performance hit at all, which I
> believe is the main use of qemu on i386 anyway.
Another use is to make sure your software works on different hardware than
you actually have.
> Furthermore x86_64 is _way_ faster, as it provides a lot more registers.
Again, just rub it in.
> I think the benefit you get from cutting the gcc3 dependency is way more
> important than a major performance hit that people will usually only see
> on the next release of qemu, by which time things have shifted towards
> x86_64 even more.
AFAICT the gcc4 problem is not even half-way solved, yet you talk about
cutting the gcc3 dependency.
Tell you what: solve the gcc4 problem first, not only on x86_64, but also
on i386 (since it is still the most widespread platform), and ARM, and
PPC, and all the other supported platforms, and _then_ we can talk about
cutting the gcc3 dependency.
Hth,
Dscho
- [Qemu-devel] [PATCH] OSX x86_32 host support, Mike Kronenberg, 2008/01/13
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Alexander Graf, 2008/01/14
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Mike Kronenberg, 2008/01/14
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Jamie Lokier, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Alexander Graf, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support,
Johannes Schindelin <=
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Andreas Färber, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Alexander Graf, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Alexander Graf, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Thiemo Seufer, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Alexander Graf, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Andreas Färber, 2008/01/15
- Re: [Qemu-devel] [PATCH] OSX x86_32 host support, Jamie Lokier, 2008/01/15