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author | Christian Grothoff <christian@grothoff.org> | 2012-10-24 09:26:44 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2012-10-24 09:26:44 +0000 |
commit | 3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3 (patch) | |
tree | e7763da882d38eeebd72fa49e0bbb4edc5b84842 /src/util/perf_malloc.c | |
parent | 6f191f08a947e08d5d8ff842a29ba6f4b6611603 (diff) | |
download | gnunet-3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3.tar.gz gnunet-3bbb7d09f0f2d5f07a3ad7f90b179ddc6831f9a3.zip |
-speeding up baadf00d code by 7x (on i7)
Diffstat (limited to 'src/util/perf_malloc.c')
-rw-r--r-- | src/util/perf_malloc.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/util/perf_malloc.c b/src/util/perf_malloc.c new file mode 100644 index 000000000..31f08dff0 --- /dev/null +++ b/src/util/perf_malloc.c | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2012 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
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_common.h" | ||
28 | #include "gnunet_crypto_lib.h" | ||
29 | #include "gnunet_time_lib.h" | ||
30 | #include <gauger.h> | ||
31 | |||
32 | static uint64_t | ||
33 | perfMalloc () | ||
34 | { | ||
35 | size_t i; | ||
36 | uint64_t ret; | ||
37 | |||
38 | ret = 0; | ||
39 | for (i=1;i<1024 * 1024;i+=1024) | ||
40 | { | ||
41 | ret += i; | ||
42 | GNUNET_free (GNUNET_malloc (i)); | ||
43 | } | ||
44 | return ret; | ||
45 | } | ||
46 | |||
47 | |||
48 | int | ||
49 | main (int argc, char *argv[]) | ||
50 | { | ||
51 | struct GNUNET_TIME_Absolute start; | ||
52 | uint64_t kb; | ||
53 | |||
54 | start = GNUNET_TIME_absolute_get (); | ||
55 | kb = perfMalloc (); | ||
56 | printf ("Malloc perf took %llu ms\n", | ||
57 | (unsigned long long) | ||
58 | GNUNET_TIME_absolute_get_duration (start).rel_value); | ||
59 | GAUGER ("UTIL", "Allocation", | ||
60 | kb / 1024 / (1 + | ||
61 | GNUNET_TIME_absolute_get_duration | ||
62 | (start).rel_value), "kb/s"); | ||
63 | return 0; | ||
64 | } | ||
65 | |||
66 | /* end of perf_malloc.c */ | ||