source: mainline/uspace/app/perf/malloc/malloc1.c@ c7de81b

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since c7de81b was 3bd74758, checked in by Vojtech Horky <vojtech.horky@…>, 7 years ago

perf: huge refactoring

The overall aim of this refactoring was to remove duplicate code in all
benchmarks that was responsible (a) for computing proper workload size
and (b) for computing final statistics.

After the refactoring, the actual benchmark code is quite short and
takes care of the actual work only.

The harness code was factored out into perf.c that is now responsible
for computing the workload size and then runs the actual benchmark.

As an extra feature, we pass stopwatch_t into the benchmark code that is
only responsible for starting/stopping. Duration is then queried outside
the benchmark code.

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 * Copyright (c) 2018 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <math.h>
30#include <stdio.h>
31#include <stdlib.h>
32#include "../perf.h"
33
34bool bench_malloc1(stopwatch_t *stopwatch, uint64_t size,
35 char *error, size_t error_size)
36{
37 stopwatch_start(stopwatch);
38 for (uint64_t i = 0; i < size; i++) {
39 void *p = malloc(1);
40 if (p == NULL) {
41 snprintf(error, error_size,
42 "failed to allocate 1B in run %" PRIu64 " (out of %" PRIu64 ")",
43 i, size);
44 return false;
45 }
46 free(p);
47 }
48 stopwatch_stop(stopwatch);
49
50 return true;
51}
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