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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/*
* cook - file construction tool
* Copyright (C) 1997, 2001 Peter Miller;
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* MANIFEST: functions to manipulate timings
*/
#include <ac/stdio.h>
#include <ac/time.h>
#include <ac/unistd.h>
#ifdef HAVE_GETRUSAGE
#include <sys/resource.h>
#endif
#include <error.h> /* if getrusage fails */
#include <mem.h>
#include <timing.h>
#include <star.h>
#include <symtab.h>
typedef struct timing_ty timing_ty;
struct timing_ty
{
char *name;
double inclusive;
double exclusive;
long ncalls;
};
static size_t stack_size;
static size_t stack_size_max;
static timing_ty **stack;
static symtab_ty *stp;
static double what_time_is_it_now _((void));
static double
what_time_is_it_now()
{
#ifdef HAVE_GETRUSAGE
struct rusage ru;
if (getrusage(RUSAGE_SELF, &ru))
nerror_raw("getrusage");
return (ru.ru_utime.tv_sec + ru.ru_utime.tv_usec * 1e-6);
#else
return (clock() * (1. / CLOCKS_PER_SEC));
#endif
}
void
timing_register(name, pp)
char *name;
void **pp;
{
string_ty *key;
timing_ty *tp;
if (!stp)
stp = symtab_alloc(20);
key = str_from_c(name);
tp = symtab_query(stp, key);
if (!tp)
{
tp = mem_alloc(sizeof(timing_ty));
tp->name = name;
tp->inclusive = 0;
tp->exclusive = 0;
tp->ncalls = 0;
symtab_assign(stp, key, tp);
}
str_free(key);
*pp = tp;
}
void
timing_push(p)
void *p;
{
timing_ty *tp;
double now;
tp = p;
tp->ncalls++;
now = what_time_is_it_now();
if (stack_size >= stack_size_max)
{
size_t nbytes;
stack_size_max = stack_size_max * 2 + 8;
nbytes = stack_size_max * sizeof(stack[0]);
stack = mem_change_size(stack, nbytes);
}
stack[stack_size++] = tp;
if (stack_size >= 2)
{
if (stack[stack_size - 2] == tp)
return;
stack[stack_size - 2]->exclusive += now;
}
tp->inclusive -= now;
tp->exclusive -= now;
}
void
timing_pop(p)
void *p;
{
timing_ty *tp;
double now;
now = what_time_is_it_now();
tp = p;
stack_size--;
if (stack_size >= 1)
{
if (stack[stack_size - 1] == tp)
return;
stack[stack_size - 1]->exclusive -= now;
}
tp->inclusive += now;
tp->exclusive += now;
}
static void printer _((symtab_ty *, string_ty *, void *, void *));
static void
printer(stp2, key, data, aux)
symtab_ty *stp2;
string_ty *key;
void *data;
void *aux;
{
timing_ty *tp;
double avg;
tp = data;
avg = (tp->ncalls > 0 ? 1. / tp->ncalls : 0);
fprintf
(
stderr,
"%9.3f %9.3f %5ld %9.6f %9.6f %s\n",
tp->inclusive,
tp->exclusive,
tp->ncalls,
tp->inclusive * avg,
tp->exclusive * avg,
tp->name
);
}
void
timing_print()
{
if (!stp)
return;
star_eoln();
fprintf
(
stderr,
"\n\
Inclusive Exclusive Calls I.Average E.Average Filename:Function\n"
);
symtab_walk(stp, printer, (void *)0);
fprintf(stderr, "\n");
}
|