RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

sptests/spcpucounter01: Resurrect workaround

Browse Source 
Resurrect workaround accidentially removed by
3e2a3c4948.
This commit is contained in:
Sebastian Huber
2016-06-21 09:45:39 +02:00
parent fa239ff26c
commit 7222a65f0e
1 changed files with 21 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
testsuites/sptests/spcpucounter01/init.c
View File

@@ -158,6 +158,25 @@ static void report_overhead(
); );
} }
static uint64_t large_delta_to_ns(rtems_counter_ticks d)
{
uint64_t ns;
ns = rtems_counter_ticks_to_nanoseconds(d);
/* Special case for CPU counters using the clock driver counter */
if (ns < rtems_configuration_get_nanoseconds_per_tick()) {
printf(
"warning: the RTEMS counter seems to be unable to\n"
" measure intervals greater than the clock tick interval\n"
);
ns += rtems_configuration_get_nanoseconds_per_tick();
}
return ns;
}
static void test_report(test_context *ctx) static void test_report(test_context *ctx)
{ {
double ns_per_tick = NS_PER_TICK; double ns_per_tick = NS_PER_TICK;
@@ -169,7 +188,7 @@ static void test_report(test_context *ctx)
for (i = 0; i < N; ++i) { for (i = 0; i < N; ++i) {
d = rtems_counter_difference(ctx->delay_ns_t[i][1], ctx->delay_ns_t[i][0]); d = rtems_counter_difference(ctx->delay_ns_t[i][1], ctx->delay_ns_t[i][0]);
ns = rtems_counter_ticks_to_nanoseconds(d); ns = large_delta_to_ns(d);
printf( printf(
"ns busy wait duration: %" PRIu64 "ns\n" "ns busy wait duration: %" PRIu64 "ns\n"
@@ -186,7 +205,7 @@ static void test_report(test_context *ctx)
ctx->delay_ticks_t[i][1], ctx->delay_ticks_t[i][1],
ctx->delay_ticks_t[i][0] ctx->delay_ticks_t[i][0]
); );
ns = rtems_counter_ticks_to_nanoseconds(d); ns = large_delta_to_ns(d);
printf( printf(
"ticks busy wait duration: %" PRIu64 "ns\n" "ticks busy wait duration: %" PRIu64 "ns\n"