Re: [Qemu-devel] TCCBOOT

[J. Mayer]

On Tue, 2004-10-26 at 00:16, Fabrice Bellard wrote:
> Johannes Schindelin wrote:
> > Hi,
> > 
> > On Mon, 25 Oct 2004, Fabrice Bellard wrote:
> > 
> >>You can try http://bellard.org/tcc/tccboot.html in QEMU :-)
> > 
> > 
> > This is way cool! Though on my machine (mobile Athlon @ 1.8GHz), running
> > QEmu, it is still compiling after 7.5 minutes and there's no sign it
> > stops soon...
> 
> It means that QEMU needs some optimizations :-)

Runs fine in qemu on my amd64 (Athlon64 3000+) with a 64 bits mode qemu.
5 secondes for bootstrap
1"50 for compling
less than 5 seconds for boot.

test-i386 runs but isn't conform to the reference (seems to be sign
extension related bug => 64 bits ?): see attached screen dump. A test
with qemu-user gives the same result, in fact...
test.sh and linux-test just Oooops...

Nbench results:
(in qemu, native, ratio)
Numeric sort 91.72   | 1432.4 => 15
string sort      4.1145 | 111.68 => 27
bitfield   2.8079e+07 | 2.4296e+08 => 8.7
FP emulation 6.1485 | 105.4   => 17
Fourier           2867.8 | 16789  => 5
Assignment  1.1278  | 25.758 => 22
Idea               286.04 | 1901.3  => 6
Huffman        87.261 | 1155.8  => 13
Neural net     0.97965 | 30.367 => 30
LU dec           34.942 | 921.12   => 26
======================================
Memory index 0.683 | 11.952 => 17.5
Integer index  0.852  | 10.562 => 12.4
FP Index         1.166  | 19.646 => 16.8

Don't know what neural net does, but qemu doesn't like it :-(
There, you may find stuff to optimise ;-)
-- 
J. Mayer <address@hidden>
Never organized

test-i386.gif
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