mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/* Define timing macros.
|
|
Copyright (C) 2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <hp-timing.h>
|
|
#include <stdint.h>
|
|
|
|
#if HP_TIMING_AVAIL && !defined USE_CLOCK_GETTIME
|
|
# define GL(x) _##x
|
|
# define GLRO(x) _##x
|
|
hp_timing_t _dl_hp_timing_overhead;
|
|
typedef hp_timing_t timing_t;
|
|
|
|
# define TIMING_INIT(res) \
|
|
({ \
|
|
HP_TIMING_DIFF_INIT(); \
|
|
(res) = 1; \
|
|
})
|
|
|
|
# define TIMING_NOW(var) HP_TIMING_NOW (var)
|
|
# define TIMING_DIFF(diff, start, end) HP_TIMING_DIFF ((diff), (start), (end))
|
|
# define TIMING_ACCUM(sum, diff) HP_TIMING_ACCUM_NT ((sum), (diff))
|
|
|
|
# define TIMING_PRINT_STATS(func, d_total_s, d_iters, d_total_i, max, min) \
|
|
printf ("%s: ITERS:%g: TOTAL:%gMcy, MAX:%gcy, MIN:%gcy, %g calls/Mcy\n", \
|
|
(func), (d_total_i), (d_total_s) * 1e-6, (max) / (d_iters), \
|
|
(min) / (d_iters), 1e6 * (d_total_i) / (d_total_s));
|
|
|
|
#else
|
|
|
|
#include <time.h>
|
|
typedef uint64_t timing_t;
|
|
|
|
/* Measure the resolution of the clock so we can scale the number of
|
|
benchmark iterations by this value. */
|
|
# define TIMING_INIT(res) \
|
|
({ \
|
|
struct timespec start; \
|
|
clock_getres (CLOCK_PROCESS_CPUTIME_ID, &start); \
|
|
(res) = start.tv_nsec; \
|
|
})
|
|
|
|
# define TIMING_NOW(var) \
|
|
({ \
|
|
struct timespec tv; \
|
|
clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &tv); \
|
|
(var) = (uint64_t) (tv.tv_nsec + (uint64_t) 1000000000 * tv.tv_sec); \
|
|
})
|
|
|
|
# define TIMING_DIFF(diff, start, end) (diff) = (end) - (start)
|
|
# define TIMING_ACCUM(sum, diff) (sum) += (diff)
|
|
|
|
# define TIMING_PRINT_STATS(func, d_total_s, d_iters, d_total_i, max, min) \
|
|
printf ("%s: ITERS:%g: TOTAL:%gs, MAX:%gns, MIN:%gns, %g iter/s\n", \
|
|
(func), (d_total_i), (d_total_s) * 1e-9, (max) / (d_iters), \
|
|
(min) / (d_iters), 1e9 * (d_total_i) / (d_total_s))
|
|
|
|
#endif
|
|
|
|
#define TIMING_PRINT_MEAN(d_total_s, d_iters) \
|
|
printf ("\t%g", (d_total_s) / (d_iters))
|