How to get performance matrix

Gedare Bloom gedare at rtems.org
Thu Mar 8 14:21:46 UTC 2012


On Wed, Mar 7, 2012 at 9:37 PM, Gedare Bloom <gedare at rtems.org> wrote:
> Hi,
>
> If your target has a decent on-chip timer then you should be able to
> use the tmtests to get some idea. I can't speak to how
> accurate/precise the numbers would be but it would be a good place to
> start.
>
> On Wed, Mar 7, 2012 at 7:24 PM, Rohan Kangralkar
> <rohankangralkar at yahoo.com> wrote:
>> Hi All,
>>
>> RTEMS is a very deterministic RTOS and we would like to get the performance
>> matrix for ADSP-BF527 processor (TLL6527m).
>>
>> We plan to get measurement of
>> 1. context switch latency
> tm26
>
>> 2. interrupt latency
> tm27
>
>> 3. footprint size
> should be a binutils 'size' program for your target that you can run
> on the binary executable to get its size... I'm not sure exactly what
> you are looking for / meaning by footprint here.
>
Check sptests/spsize -- might be what you are looking for

>>
>> I am looking into the details of the code to find the points of context
>> switch. Can someone help me in identifying the points of context switch.
>> Does RTEMS provides hooks at these points?
>>
>
> Good luck!
>>
>>
>> ___________________________
>> Thanks and regards
>> Rohan Kangralkar
>>
>>
>>
>>
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>>



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