On 04/18/2011 05:32 PM, moktar_bouain wrote:
Note that this technique is only accurate to the system tick time
which is normally 10ms. If your thread runs for less time than this,
you won't know.
Look at the test program tm_basic.cxx for details on how to measure
at a finer grain (without the overhead of decreasing the tick time).
I use eCos for Sparc (Leon3 processor) with a 66 MHz.
Means that the clock tick corresponds to 1.5×10-5ms(15ns).
is it possible to measure the execution time of a thread??
That's not the "clock tick" that those functions are using, but the
hardware instruction clock. The system clock is a periodic timer,
used to measure time, that normally runs at 100Hz
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Gary Thomas | Consulting for the
MLB Associates | Embedded world
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