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-rw-r--r--gnuradio-core/src/tests/benchmark_vco.cc167
1 files changed, 0 insertions, 167 deletions
diff --git a/gnuradio-core/src/tests/benchmark_vco.cc b/gnuradio-core/src/tests/benchmark_vco.cc
deleted file mode 100644
index 3a6ade78c9..0000000000
--- a/gnuradio-core/src/tests/benchmark_vco.cc
+++ /dev/null
@@ -1,167 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2002,2004,2005 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <stdio.h>
-#include <sys/time.h>
-#ifdef HAVE_SYS_RESOURCE_H
-#include <sys/resource.h>
-#endif
-#include <unistd.h>
-#include <gr_vco.h>
-#include <gr_fxpt_vco.h>
-#include <string.h>
-
-#define ITERATIONS 5000000
-#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)
-{
- 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)
-{
-#ifdef HAVE_SYS_RESOURCE_H
- struct rusage rusage_start;
- struct rusage rusage_stop;
-#else
- double clock_start;
- double clock_end;
-#endif
- 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));
-
- // get starting CPU usage
-#ifdef HAVE_SYS_RESOURCE_H
- if (getrusage (RUSAGE_SELF, &rusage_start) < 0){
- perror ("getrusage");
- exit (1);
- }
-#else
- clock_start = (double) clock() * (1000000. / CLOCKS_PER_SEC);
-#endif
- // do the actual work
-
- test (output, input);
-
- // get ending CPU usage
-
-#ifdef HAVE_SYS_RESOURCE_H
- if (getrusage (RUSAGE_SELF, &rusage_stop) < 0){
- perror ("getrusage");
- exit (1);
- }
-
- // compute results
-
- 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 total = user + sys;
-#else
- 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);
-}
-
-// ----------------------------------------------------------------
-
-void basic_vco (float *output, const float *input)
-{
- 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;
-
- while (phase > 2 * M_PI)
- phase -= 2 * M_PI;
-
- while (phase < -2 * M_PI)
- phase += 2 * M_PI;
- }
- }
-}
-
-void native_vco (float *output, const float *input)
-{
- gr_vco<float,float> vco;
-
- 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)
-{
- gr_fxpt_vco vco;
-
- 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_loop (float *x, const float *y)
-{
- for (int i = 0; i < ITERATIONS; i++){
- nop_fct (x, y);
- }
-}
-
-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");
-}