This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Cycle Measurement on ARM11platform using RVISS

Note: This was originally posted on 6th August 2012 at http://forums.arm.com

Hi all,

Iam trying to measure the performance cycles for my application on RVISS ARM1176JZF-S platform.

When I measure the cycles it is giving 471977 cycle counts,

But measuring the same application performance on different machine it is giving 423787 cycle counts (lesser than my measurement).

For measuring the performance cycles on my machine, I followed some steps of settings:

MCCFG=1 in default.ami file and given ICACHE_LINES, DCACHE_LINES to 1024.

but sitll Iam getting difference of 48190 cycles, why this difference of cycles is getting in my machine?

Is I need to set more settings other than above?

Please help me in this.

Thanks in advance,
Vinay.

Parents

Martin Weidmann over 12 years ago

Note: This was originally posted on 6th August 2012 at http://forums.arm.com

First, RVISS is not cycle accurate for ARM11 family processors and so it not suitable for benchmarking. I think ARM has a FAQ to that effect somewhere on their site.

How are you measuring the cycles?
Cancel
Vote up 0 Vote down

Cancel

Reply

Martin Weidmann over 12 years ago

Note: This was originally posted on 6th August 2012 at http://forums.arm.com

First, RVISS is not cycle accurate for ARM11 family processors and so it not suitable for benchmarking. I think ARM has a FAQ to that effect somewhere on their site.

How are you measuring the cycles?
Cancel
Vote up 0 Vote down

Cancel

Children

No data