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Program to count Cortex A8 cycles

Note: This was originally posted on 8th February 2011 at http://forums.arm.com

Hi!

I've made a program to count the cortex A8 cycles.
For the moment this is just a beta version. It miss a lot of function.

Feel free to test it.
It will help me to find missing parsing rules.
You can return me any error in countig cycle process.

you can test it here.

http://pulsar.webshaker.net/ccc/

This is in French, but I suppose google traduction should do the job.

Etienne

Etienne SOBOLE over 12 years ago

Note: This was originally posted on 15th February 2011 at http://forums.arm.com

hum!

I'm not sure to really understand the question.

Why the Cortex A8 ?
- because this is quite impossible with the cortex A9 (due to out of order Cortex A9 execution)
- because I've a beagleboard

Why count the cycle ?
- because this is the only way to really optimise an assembler function. The script can find bubble in the pipelines.

Why assembler ?
- because gcc is not very good to optimise ARM c code.

Etienne
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Etienne SOBOLE over 12 years ago

Note: This was originally posted on 13th March 2011 at http://forums.arm.com

Thank you shervin.

If it had help you, that's great
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Bruce Cheng over 12 years ago

Note: This was originally posted on 15th February 2011 at http://forums.arm.com

Hi, I am a freshman.
Just wanna ask a simple question:
why you count A8 cycles?
what's the aim of it?

thanks&regards
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Bruce Cheng over 12 years ago

Note: This was originally posted on 16th February 2011 at http://forums.arm.com

Thanks for details.
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Shervin Emami over 12 years ago

Note: This was originally posted on 12th March 2011 at http://forums.arm.com

Thanks webshaker, it looks like a nice tool :-)
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Gilead Kutnick over 12 years ago

Note: This was originally posted on 17th March 2011 at http://forums.arm.com

Thanks for this excellent tool.
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