Zaurus Performance

[seed]

ok we all agree that zaurii are great machine   cuz runnig linux  (great os) but appart that , the zaurus hardware are low compare to some pda like x50v or look 720. i mean yeah the screen are great , yea the os is also wonderful(and the fact greatness (i am not sur of the word) of the os is made by sharp but by the linux/zaurii comunauti), but i think sharp improve the harware specification of the new zaurus (c3000,c1000 and sl6000) why stay at 400 when other where already at 624 or 520 ...or maybe more rom
and why zaurus are so expensive machine ?? for that hardware is begin to think that sharp use the fact that zaurus are the only suatable zaurus machine for giving high cost  



i recently got a sl6000l and i enjoy use it for all king of purpose but when the time off playing game (or video) begin, i begin to think that a x50v could be better for me not because i dont find game for playing but because all interresting emulator are slow... i dont understand why  
i go into deception when i see that my 400-intel_processor-of-2002 can run propely an emulator of the snes... i know that zaurus are not design for gaming purpose but ... the snes !!! video performance of zaurus is that worse ?? or it is only a problem of software-architure dependend optimisation

pour finir
i got some question

0-c1000 and c3000 vs sl6000 wich are the better video performace ??
1-do u think that the next gen of zaurus will be more powerfull
2-as i ask will emulation performance increase if software are more optimised for zaurus architecture
3-in case of using the application specialy design and optimised(very very well optimised and design  for zaurus how far could the emulator go psone,nintendo64,nintendo

[omega]

there is no floating point ability in the Zaurus cpu... that's where the major slowdown comes from... Hardware multipliers take a lot of power...

[seed]

there is no floating point ability in the Zaurus cpu... that's where the major slowdown comes from... Hardware multipliers take a lot of power...
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yea like in all arm based pda and i think that why hardware designer add video  ship ??

[Mickeyl]

0-c1000 and c3000 vs sl6000 wich are the better video performace ??
1-do u think that the next gen of zaurus will be more powerfull
2-as i ask will emulation performance increase if software are more optimised for zaurus architecture
3-in case of using the application specialy design and optimised(very very well optimised and design  for zaurus how far could the emulator go psone,nintendo64,nintendo

0 -> With the present drivers, all more or less the same.

1 -> Of course. Newer hardware is always more powerful than older hardware.

2 -> Definitly. Compare Linux 2.4 to Linux 2.6, compare soft-float code to hard-float code and compare gcc 2.95 to gcc 3.x code - makes a whole lot of a difference. Add fb hardware accelleration and it would be even better.

3 -> Not very far. Emulation is a non-trivial task, emulating sophisticated DSPs even more so. It takes GigaHertz PCs to do convincing game station emulation.

[seed]

0-c1000 and c3000 vs sl6000 wich are the better video performace ??
1-do u think that the next gen of zaurus will be more powerfull
2-as i ask will emulation performance increase if software are more optimised for zaurus architecture
3-in case of using the application specialy design and optimised(very very well optimised and design  for zaurus how far could the emulator go psone,nintendo64,nintendo

0 -> With the present drivers, all more or less the same.

1 -> Of course. Newer hardware is always more powerful than older hardware.

2 -> Definitly. Compare Linux 2.4 to Linux 2.6, compare soft-float code to hard-float code and compare gcc 2.95 to gcc 3.x code - makes a whole lot of a difference. Add fb hardware accelleration and it would be even better.

3 -> Not very far. Emulation is a non-trivial task, emulating sophisticated DSPs even more so. It takes GigaHertz PCs to do convincing game station emulation.
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0 -> ok but ,what for new driver

1 -> i mean compare to what order will , will sharp take 624 mhz processor when other will be at 800 mhz may be 1ghz

2-> according to what u saod it is more a matter of time and support than a harware issue... right ?
3-dsp ??i heard that the gp32 have GBA emulator can we hope a such emulator on zaurii ??

can the overcloking with the new kernel make differrence ?? what the fastest reachable speed of zaurus cpu ? can this damage the zaurus ??

[kahm]

and why zaurus are so expensive machine ??

They aren't so much. Importing them is what makes them expensive. I had a friend buy the C1000 from a shop in Japan and I paid 43050Y/$485Can/$400US. Much cheaper than the Toshiba e80 (?) for $599Can. (It lacks a keyboard but has wifi and bt built in, along with the faster processor and more memory). I paid 61980Y/$708Can/$575 US for the C3000 the same way.

[seed]

did some one now the best c compiler for arm?

[seed]

ok after do some serch about floating unit and floatind computing on arm i find this http://www.dec.usc.es/arith16/papers/paper-131.pdf , but not able to see the date of this document
their said that they have an implementation of floationg that can be 10 time faster than the gcc one ? is it still true ? does the floating processor of the kernel (default one wich sharp rom ) use those technique ?

[Mickeyl]

I don't think there is currently anything faster out there than Nico Pitre's hand optimized soft-float unit in gcc 3.4. It already delivers 1000% performance compared to the hard-float in kernel 2.4.18-embedix. Take a look at OZ, we use it there.

[tovarish]

does OZ apps run with soft float?
say if i compile maxima with OZ development kit, will it be significantly faster than the sharp rom. Maxima is a symbolic math software so it would be an ideal app to test softfloat.

is there a way i can get a soft float enabled toolkit for windows.

tovarish

[Mickeyl]

Yes, OZ apps all are compiled using soft-float, that's why it feels much faster than the SharpROM (+clones) on most machines.