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-rw-r--r--src/util/perf_malloc.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/src/util/perf_malloc.c b/src/util/perf_malloc.c
deleted file mode 100644
index 1c91402da..000000000
--- a/src/util/perf_malloc.c
+++ /dev/null
@@ -1,97 +0,0 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2012 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21/**
22 * @author Christian Grothoff
23 * @file util/perf_malloc.c
24 * @brief measure performance of allocation functions
25 */
26#include "platform.h"
27#include "gnunet_util_lib.h"
28#include <gauger.h>
29
30static uint64_t
31perf_malloc ()
32{
33 uint64_t ret;
34
35 ret = 0;
36 for (size_t i = 1; i < 1024 * 1024; i += 1024)
37 {
38 ret += i;
39 GNUNET_free (GNUNET_malloc (i));
40 }
41 return ret;
42}
43
44
45static uint64_t
46perf_realloc ()
47{
48 uint64_t ret;
49
50 ret = 0;
51 for (size_t i = 10; i < 1024 * 1024 / 5; i += 1024)
52 {
53 char *ptr;
54
55 ret += i;
56 ptr = GNUNET_malloc (i);
57 memset (ptr, 1, i);
58 ptr = GNUNET_realloc (ptr, i + 5);
59 for (size_t j = 0; j<i; j++)
60 GNUNET_assert (1 == ptr[j]);
61 memset (ptr, 6, i + 5);
62 ptr = GNUNET_realloc (ptr, i - 5);
63 for (size_t j = 0; j<i - 5; j++)
64 GNUNET_assert (6 == ptr[j]);
65 GNUNET_free (ptr);
66 }
67 return ret;
68}
69
70
71int
72main (int argc, char *argv[])
73{
74 struct GNUNET_TIME_Absolute start;
75 uint64_t kb;
76
77 start = GNUNET_TIME_absolute_get ();
78 kb = perf_malloc ();
79 printf ("Malloc perf took %s\n",
80 GNUNET_STRINGS_relative_time_to_string (
81 GNUNET_TIME_absolute_get_duration (start),
82 GNUNET_YES));
83 GAUGER ("UTIL", "Allocation",
84 kb / 1024 / (1
85 + GNUNET_TIME_absolute_get_duration
86 (start).rel_value_us / 1000LL), "kb/ms");
87 start = GNUNET_TIME_absolute_get ();
88 kb = perf_realloc ();
89 printf ("Realloc perf took %s\n",
90 GNUNET_STRINGS_relative_time_to_string (
91 GNUNET_TIME_absolute_get_duration (start),
92 GNUNET_YES));
93 return 0;
94}
95
96
97/* end of perf_malloc.c */