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R: DOSBox PowerPC JIT patch



Hi Rui,
example quake time demo on 320x240 20fps with audio enabled before was only 4fps without audio enabled 😉 
Fifa 96 running as 30fps without frame drops. Same is need for speed and duke nukem.
Norton Sysinfo original gave me 486 37mhz now 486 4999 mhz 😋  (but the true is like a pentium 2 266 mhz)

About jit and performances,
 jit make really difference in programs speed ... Example on OSx there was Virtual PC where on my test the quad on single thread was gaving same performance as a pentium 4. 
For sure DosBox need more jit optimization compared Virtual PC, now performance are exactly like Qemu tgc.

This is the aros running on VirtualPC on G5 Quad 
https://youtu.be/uGGMOsTqh70

I have many videos about the mac running x86 emulators on my youtube channel if you curious you can check it 😉 
https://www.youtube.com/channel/UCkb4bw4N19d-x_tn2FXLojQ

Ciao 
Luigi 


Da: Rui Salvaterra <rsalvaterra@gmail.com>
Inviato: domenica 21 giugno 2020 13:44
A: luigi burdo <intermediadc@hotmail.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>; debian-powerpc@lists.debian.org <debian-powerpc@lists.debian.org>
Oggetto: Re: DOSBox PowerPC JIT patch
 
Hi, Luigi,

On Sun, 21 Jun 2020 at 12:35, luigi burdo <intermediadc@hotmail.com> wrote:
>
> Tested by me  this Dosbox patch on Debian PPC64 and the performances increse are about 900%

A 900 % speed increase is insane. I had no idea it could be that high,
I was hoping for about 300 % average. Unfortunately my G5 died a
couple of weeks ago, so I only have an iBook G4 to test.

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