1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#if defined (__OpenBSD__) || defined (__NetBSD__)
# ifndef USE_PCTR
# define USE_PCTR 1
# endif /* !USE_PCTR */
#endif /* __OpenBSD__ */
#if USE_PCTR
#include <machine/pctr.h>
#define get_time() rdtsc ()
#define TIME_LABEL "cycles"
#else /* !USE_PCTR */
inline u_int64_t
get_time ()
{
timeval tv;
gettimeofday (&tv, NULL);
return (u_int64_t) tv.tv_sec * 1000000 + tv.tv_usec;
}
#define TIME_LABEL "usec"
#endif /* !USE_PCTR */
#define BENCH(iter, code) \
{ \
u_int64_t __v; \
{ code; } \
{ code; } \
__v = get_time (); \
for (u_int i = 0; i < iter; i++) { \
code; \
} \
__v = get_time () - __v; \
warn ("%s: %" U64F "d " TIME_LABEL " (%" U64F "d tot)\n", \
#code, __v / iter, __v); \
}
#define TIME(code) \
{ \
u_int64_t __v; \
__v = get_time (); \
{ code; } \
__v = get_time () - __v; \
warn ("%s: %" U64F "d " TIME_LABEL "\n", #code, __v); \
}
|
