Author Topic: Recent 5600s have PXA255 processor? (Read 41932 times)

tumnus · « **Reply #90 on:** March 08, 2004, 06:15:03 pm »

All results have been posted several times. Please search the forums.

The issues of the PXA250 vs PXA255 have also been discussed many times.

nowonmai · « **Reply #91 on:** March 10, 2004, 07:54:32 am »

tumnus, I\'d be curious to know your thoughts on the similarity between the two followinf results. It was my impression that the pre-empt kernel should be quicker than the standard sharp one.

Quote

On a PXA255 SL5600
This result from original Sharp 1.32 kernel

Dhrystone Benchmark, Version 2.1 (Language: C)
Register option not selected.
Microseconds for one loop: 2.8
Dhrystones per second: 351741.1
VAX MIPS rating: 200.194

This result from Standard pre-emptive kernel 1.2

Dhrystone Benchmark, Version 2.1 (Language: C)
Register option not selected.
Microseconds for one loop: 2.8
Dhrystones per second: 352559.6
VAX MIPS rating: 200.660

remarkably similar, no?

tumnus · « **Reply #92 on:** March 10, 2004, 08:40:27 am »

For one, you should be using v1.3 of the Special Kernel now. All others have been superceded by this. Secondly it looks like the kernel wasn\'t updated to me. I have seen someone else post benchmarks with a PXA255 using v1.3 of the Special kernel and they got higher results.

You\'re not going to get much better results anyway, since the PXA255 doesn\'t have the same bugs that the PXA250 has at least with regards to the cache.

Anonymous · « **Reply #93 on:** March 10, 2004, 08:52:55 pm »

tumnus, according to the thread below, enabling async option in kernel source improves
the speed and stability for CF/SD cards. Do you know if your special kernel has the same
feature? Thanks.

http://www.zaurususergroup.com/index.php?n...ht=configfssync

polansky · « **Reply #94 on:** April 29, 2004, 02:22:38 pm »

PXA250 from Amazon in Kentucky.
Received 04/27/2004

Omicron · « **Reply #95 on:** April 30, 2004, 01:25:47 am »

Quote

I just got my Zaurus 5600 from Amazon today and the box says 250. So it looks like I am screwed. Any suggestions/insight? Are there patches to do, or should I just send it back to Amazon and try and get at 5500?

ANybody try lately?

guh · « **Reply #96 on:** April 30, 2004, 06:27:43 am »

how do we know ? How do you run commands with the default sharp rom ?

amrein · « **Reply #97 on:** April 30, 2004, 06:53:33 am »

guh: see FAQ (you need to install the terminal package).

Note: What could be very interesting if we wanted to have better performance on Sharp PDA would be to replace the old pthead library by the new posix compliant GNU library (NTRL or something like that) and recompile the wall application set to see how it goes.

AnalogTek · « **Reply #98 on:** May 06, 2004, 01:16:35 am »

A bit late, but...

SL-5600 ordered from Amazon on 20040403, received 20040407. Box indicates PXA255, and \'cat /proc/cpuinfo\' yields \"Intel XScale-PXA255 rev 6 (v5l)\".

TheFly · « **Reply #99 on:** May 06, 2004, 11:56:26 pm »

That\'s good news. I just placed my order tonight. Here\'s hoping.

Oh, and \'lo. I\'m TheFly. *bows*

News:

Author Topic: Recent 5600s have PXA255 processor? (Read 41932 times)

Anonymous