Hi,

I'm trying to benchmark software running on a c6424 EVM board, and I'm seeing a discrepancy in the times reported by the high and low resolution clocks.  Here is an example:

    printf("Long Time Test...\n");
    t = CLK_getltime();
    TSK_sleep(1000);
    t = CLK_getltime() - t;
    printf("\tDone! Took: %f ms\n", ((float) t * CLK_getprd()) / CLK_countspms());

    printf("Short Time Test...\n");
    t = CLK_gethtime();
    TSK_sleep(1000);
    t = CLK_gethtime() - t;
    printf("\tDone! Took: %f ms\n", ((float) t) / (float) CLK_countspms());


The DSP clock is running at 594 MHz, and I have the low resolution clock configured for 100 us intervals.  When I execute the above code, I see that the elapsed time reported using CLK_getltime() is 100 ms, while the time reported by CLK_gethtime() is around 82 ms.  I've verified that this isn't a wrap-around problem, but I'm not sure what to check next.


Any thoughts on why this would occur?


Thanks