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/* Define timing macros.
Copyright (C) 2013-2014 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_TYPE "hp_timing"
# 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))
#else
#include <time.h>
typedef uint64_t timing_t;
# define TIMING_TYPE "clock_gettime"
/* 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)
#endif
#define TIMING_PRINT_MEAN(d_total_s, d_iters) \
printf ("\t%g", (d_total_s) / (d_iters))
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