diff options
Diffstat (limited to 'microbench/util.c')
| -rw-r--r-- | microbench/util.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/microbench/util.c b/microbench/util.c index cf19d234..0486590a 100644 --- a/microbench/util.c +++ b/microbench/util.c @@ -29,6 +29,8 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <config.h> + #include <stdlib.h> #include "util.h" @@ -63,6 +65,36 @@ benchmark_function (void (*testfunc) (void), unsigned count) return counter_diff (&start, &end) / count ; } /* benchmark_function */ +#elif defined FLAC__SYS_DARWIN + +#include <mach/mach_time.h> + +static double +counter_diff (const uint64_t * start, const uint64_t * end) +{ + mach_timebase_info_data_t t_info; + mach_timebase_info(&t_info); + uint64_t duration = *end - *start; + + return duration * ((double)t_info.numer/(double)t_info.denom); +} + +double +benchmark_function (void (*testfunc) (void), unsigned count) +{ + uint64_t start, end; + unsigned k; + + start = mach_absolute_time(); + + for (k = 0 ; k < count ; k++) + testfunc(); + + end = mach_absolute_time(); + + return counter_diff (&start, &end) / count ; +} /* benchmark_function */ + #else #define _GNU_SOURCE |