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<pre style="word-wrap:break-word; font-size:10.0pt; font-family:Tahoma; color:black">This looks like a benchmark test (tmXX) and they do not include the clock device driver. This you are specifying a parameter that impacts a component not in the program.
FWIW why is the put time call specifying clock tick? It appears to be benchmarking a preempting semaphore release which has no need of a clock tick.
-Joel
Oscar Siby <sibyo@student.chalmers.se> wrote:
</pre>
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<div><span style="font-size: 10pt;">Hi,</span></div>
<font size="2"><span style="font-size:10pt">
<div class="PlainText">Im working with a xilinx virtex 5 board running a leon 3 core,my rtems
<br>
version is 4.10.0 built from source.<br>
My predicament is that when i change the CONFIGURE_MICROSECONDS_PER_TICK it <br>
does not seem to change anything, here is the code of two of my tasks.<br>
<br>
rtems_task High_task(rtems_task_argument argument)<br>
{<br>
(void) rtems_semaphore_obtain(<br>
Semaphore_id,<br>
RTEMS_DEFAULT_OPTIONS,<br>
0xffffffff<br>
);<br>
end_time = benchmark_timer_read();<br>
put_time(<br>
"rtems_clock_tick",<br>
end_time,<br>
1,<br>
0,<br>
CALLING_OVERHEAD_CLOCK_TICK<br>
);<br>
rtems_task_delete( RTEMS_SELF );<br>
<br>
}<br>
<br>
rtems_task Low_task(rtems_task_argument argument)<br>
{<br>
benchmark_timer_initialize();<br>
(void) rtems_semaphore_release(Semaphore_id);<br>
puts( "*** END OF TEST 25 ***" );<br>
rtems_test_exit( 0 );<br>
}<br>
I have tried with all kinds of values for CONFIGURE_MICROSECONDS_PER_TICK <br>
but the put_time values is still always in the same range. Is the <br>
benchmark_timer running on a different timer/clock ?</div>
<div class="PlainText">/Oscar<br>
<br>
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