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Profiling code and DspLink

Ernast Sevo
Prodigy 180 points

I am attempting to profile code running on the DSP, essentially seeing how quick or slow a certain section of code runs. Does DspLink provide any timers that may be used to achieve this?

  • 0
    TI__Guru 65405 points

    Hi Ernast,

    The DSPLink gives you ability to measure the time for execution of a source code fragment by getting time before and after your code fragment. I suggest you the following example:

    time1 = CLK_getltime();
    ... processing ( your code ) ...
    time2 = CLK_getltime();
    CPUcycles = (time2 - time1) * CLK_cpuCyclesPerLtime();
    /* calculate absolute time in milliseconds */
    TimeAbsolute = CPUCycles / GBL_getFrequency();

    You can find more details and clarifications about time measuring from the DSP side from the TMS320C6000 DSP/BIOS 5.x Application Programming Interface (API) at the link:

    http://www.ti.com/lit/ug/spru403s/spru403s.pdf

    Pay attention on the CLK_gethtime(), CLK_getltime(), CLK_cpuCyclesPerLtime() and CLK_cpuCyclesPerHtime() functions from CLK Module.

    BR

    Tsvetolin Shulev

  • 0 in reply to Cvetolin Shulev-XID
    Prodigy 180 points

    Thank you for the quick reply.