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-rw-r--r--gr-blocks/tests/benchmark_vco.cc146
1 files changed, 71 insertions, 75 deletions
diff --git a/gr-blocks/tests/benchmark_vco.cc b/gr-blocks/tests/benchmark_vco.cc
index 5c5aad30f..a8fae75a4 100644
--- a/gr-blocks/tests/benchmark_vco.cc
+++ b/gr-blocks/tests/benchmark_vco.cc
@@ -40,135 +40,131 @@
#include <cstring>
#define ITERATIONS 5000000
-#define BLOCK_SIZE (10 * 1000) // fits in cache
+#define BLOCK_SIZE (10 * 1000) // fits in cache
#define FREQ 5003.123
#define K 4.9999999
#define AMPLITUDE 2.444444444
-static double
-timeval_to_double(const struct timeval *tv)
+static double timeval_to_double(const struct timeval* tv)
{
- return (double) tv->tv_sec + (double) tv->tv_usec * 1e-6;
+ return (double)tv->tv_sec + (double)tv->tv_usec * 1e-6;
}
-static void
-benchmark(void test (float *x, const float *y), const char *implementation_name)
+static void benchmark(void test(float* x, const float* y),
+ const char* implementation_name)
{
#ifdef HAVE_SYS_RESOURCE_H
- struct rusage rusage_start;
- struct rusage rusage_stop;
+ struct rusage rusage_start;
+ struct rusage rusage_stop;
#else
- double clock_start;
- double clock_end;
+ double clock_start;
+ double clock_end;
#endif
- float output[BLOCK_SIZE];
- float input[BLOCK_SIZE];
+ float output[BLOCK_SIZE];
+ float input[BLOCK_SIZE];
- // touch memory
- memset(output, 0, BLOCK_SIZE*sizeof(float));
- for(int i = 0; i<BLOCK_SIZE; i++)
- input[i] = sin(double(i));
+ // touch memory
+ memset(output, 0, BLOCK_SIZE * sizeof(float));
+ for (int i = 0; i < BLOCK_SIZE; i++)
+ input[i] = sin(double(i));
- // get starting CPU usage
+ // get starting CPU usage
#ifdef HAVE_SYS_RESOURCE_H
- if(getrusage (RUSAGE_SELF, &rusage_start) < 0) {
- perror("getrusage");
- exit(1);
- }
+ if (getrusage(RUSAGE_SELF, &rusage_start) < 0) {
+ perror("getrusage");
+ exit(1);
+ }
#else
- clock_start = (double)clock() * (1000000. / CLOCKS_PER_SEC);
+ clock_start = (double)clock() * (1000000. / CLOCKS_PER_SEC);
#endif
- // do the actual work
+ // do the actual work
- test(output, input);
+ test(output, input);
- // get ending CPU usage
+ // get ending CPU usage
#ifdef HAVE_SYS_RESOURCE_H
- if(getrusage (RUSAGE_SELF, &rusage_stop) < 0) {
- perror("getrusage");
- exit(1);
- }
+ if (getrusage(RUSAGE_SELF, &rusage_stop) < 0) {
+ perror("getrusage");
+ exit(1);
+ }
- // compute results
+ // compute results
- double user =
- timeval_to_double(&rusage_stop.ru_utime)
- - timeval_to_double(&rusage_start.ru_utime);
+ double user = timeval_to_double(&rusage_stop.ru_utime) -
+ timeval_to_double(&rusage_start.ru_utime);
- double sys =
- timeval_to_double(&rusage_stop.ru_stime)
- - timeval_to_double(&rusage_start.ru_stime);
+ double sys = timeval_to_double(&rusage_stop.ru_stime) -
+ timeval_to_double(&rusage_start.ru_stime);
- double total = user + sys;
+ double total = user + sys;
#else
- clock_end = (double)clock() * (1000000. / CLOCKS_PER_SEC);
- double total = clock_end - clock_start;
+ clock_end = (double)clock() * (1000000. / CLOCKS_PER_SEC);
+ double total = clock_end - clock_start;
#endif
- printf("%18s: cpu: %6.3f steps/sec: %10.3e\n",
- implementation_name, total, ITERATIONS / total);
+ printf("%18s: cpu: %6.3f steps/sec: %10.3e\n",
+ implementation_name,
+ total,
+ ITERATIONS / total);
}
// ----------------------------------------------------------------
-void basic_vco(float *output, const float *input)
+void basic_vco(float* output, const float* input)
{
- double phase = 0;
+ double phase = 0;
- for(int j = 0; j < ITERATIONS/BLOCK_SIZE; j++) {
- for(int i = 0; i < BLOCK_SIZE; i++) {
- output[i] = cos(phase) * AMPLITUDE;
- phase += input[i] * K;
+ for (int j = 0; j < ITERATIONS / BLOCK_SIZE; j++) {
+ for (int i = 0; i < BLOCK_SIZE; i++) {
+ output[i] = cos(phase) * AMPLITUDE;
+ phase += input[i] * K;
- while(phase > 2 * GR_M_PI)
- phase -= 2 * GR_M_PI;
+ while (phase > 2 * GR_M_PI)
+ phase -= 2 * GR_M_PI;
- while(phase < -2 * GR_M_PI)
- phase += 2 * GR_M_PI;
+ while (phase < -2 * GR_M_PI)
+ phase += 2 * GR_M_PI;
+ }
}
- }
}
-void native_vco(float *output, const float *input)
+void native_vco(float* output, const float* input)
{
- gr::blocks::vco<float,float> vco;
+ gr::blocks::vco<float, float> vco;
- for(int j = 0; j < ITERATIONS/BLOCK_SIZE; j++) {
- vco.cos(output, input, BLOCK_SIZE, K, AMPLITUDE);
- }
+ for (int j = 0; j < ITERATIONS / BLOCK_SIZE; j++) {
+ vco.cos(output, input, BLOCK_SIZE, K, AMPLITUDE);
+ }
}
-void fxpt_vco(float *output, const float *input)
+void fxpt_vco(float* output, const float* input)
{
- gr::blocks::fxpt_vco vco;
+ gr::blocks::fxpt_vco vco;
- for(int j = 0; j < ITERATIONS/BLOCK_SIZE; j++) {
- vco.cos(output, input, BLOCK_SIZE, K, AMPLITUDE);
- }
+ for (int j = 0; j < ITERATIONS / BLOCK_SIZE; j++) {
+ vco.cos(output, input, BLOCK_SIZE, K, AMPLITUDE);
+ }
}
// ----------------------------------------------------------------
-void nop_fct(float *x, const float *y)
-{
-}
+void nop_fct(float* x, const float* y) {}
-void nop_loop(float *x, const float *y)
+void nop_loop(float* x, const float* y)
{
- for(int i = 0; i < ITERATIONS; i++) {
- nop_fct(x, y);
- }
+ for (int i = 0; i < ITERATIONS; i++) {
+ nop_fct(x, y);
+ }
}
-int
-main(int argc, char **argv)
+int main(int argc, char** argv)
{
- benchmark(nop_loop, "nop loop");
- benchmark(basic_vco, "basic vco");
- benchmark(native_vco, "native vco");
- benchmark(fxpt_vco, "fxpt vco");
+ benchmark(nop_loop, "nop loop");
+ benchmark(basic_vco, "basic vco");
+ benchmark(native_vco, "native vco");
+ benchmark(fxpt_vco, "fxpt vco");
}