1 /*
2 * Copyright (c) 2007 - 2015 Joseph Gaeddert
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 * THE SOFTWARE.
21 */
22
23 #include <sys/resource.h>
24 #include "liquid.h"
25
26 //
benchmark_quantize_adc(struct rusage * _start,struct rusage * _finish,unsigned long int * _num_iterations)27 void benchmark_quantize_adc(struct rusage * _start,
28 struct rusage * _finish,
29 unsigned long int * _num_iterations)
30 {
31 unsigned long int i;
32
33 unsigned int q = 0;
34 unsigned int num_bits=8;
35 float x=-0.1f;
36
37 // start trials
38 getrusage(RUSAGE_SELF, _start);
39 for (i=0; i<(*_num_iterations); i++) {
40 q ^= quantize_adc(x,num_bits);
41 q ^= quantize_adc(x,num_bits);
42 q ^= quantize_adc(x,num_bits);
43 q ^= quantize_adc(x,num_bits);
44 }
45 getrusage(RUSAGE_SELF, _finish);
46 *_num_iterations *= 4;
47 }
48
49 //
benchmark_quantize_dac(struct rusage * _start,struct rusage * _finish,unsigned long int * _num_iterations)50 void benchmark_quantize_dac(struct rusage * _start,
51 struct rusage * _finish,
52 unsigned long int * _num_iterations)
53 {
54 unsigned long int i;
55
56 unsigned int q=0x0f;
57 unsigned int num_bits=8;
58 float x = 0;
59
60 // start trials
61 getrusage(RUSAGE_SELF, _start);
62 for (i=0; i<(*_num_iterations); i++) {
63 x += quantize_dac(q,num_bits);
64 x += quantize_dac(q,num_bits);
65 x += quantize_dac(q,num_bits);
66 x += quantize_dac(q,num_bits);
67 }
68 getrusage(RUSAGE_SELF, _finish);
69 *_num_iterations *= 4;
70 }
71
72