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#include <time.h>
#include <stdio.h>
#include "../zahl.h"
#ifndef CLOCK_MONOTONIC_RAW
# define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC
#endif
#define BENCHMARK(INSTRUCTION, FAST)\
do {\
i = FAST ? 1000000L : 1000L;\
clock_gettime(CLOCK_MONOTONIC_RAW, &start);\
while (i--) {\
INSTRUCTION;\
}\
clock_gettime(CLOCK_MONOTONIC_RAW, &end);\
end.tv_sec -= start.tv_sec;\
end.tv_nsec -= start.tv_nsec;\
if (end.tv_nsec < 0) {\
end.tv_nsec += 1000000000L;\
end.tv_sec -= 1;\
}\
printf("%s: %lli.%09li %s\n",\
#INSTRUCTION,\
(long long int)(end.tv_sec), end.tv_nsec,\
FAST ? "µs" : "ms");\
} while (0)
int
main(int argc, char *argv[])
{
struct timespec start, end;
z_t r, n;
jmp_buf jmp;
size_t i;
if (setjmp(jmp)) {
zperror(argv[0]);
return 1;
}
zsetup(jmp);
zinit(r);
zinit(n);
zsetu(n, 1);
zlsh(n, n, 64000L - 1L);
zset(r, n);
BENCHMARK(zrand(r, FAST_RANDOM, MODUNIFORM, n), 0);
BENCHMARK(zrand(r, LIBC_RAND_RANDOM, MODUNIFORM, n), 0);
BENCHMARK(zrand(r, LIBC_RANDOM_RANDOM, MODUNIFORM, n), 0);
BENCHMARK(zrand(r, LIBC_RAND48_RANDOM, MODUNIFORM, n), 0);
zfree(r);
zfree(n);
zunsetup();
return 0;
(void) argc;
}
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