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
|
/*
* Copyright (c) 1995 Silicon Graphics, Inc. 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.
*/
#include <unistd.h>
#include <stdio.h>
#include <syslog.h>
#include <fcntl.h>
#include <ctype.h>
#include <pwd.h>
#include "pmapi.h"
#include "impl.h"
#include "proc.h"
#include "proc_aux.h"
#include "cluster.h"
#include "ppred_values.h"
#include "hotproc.h"
static pmDesc desctab[] = {
/* hotproc.predicate.syscalls */
{ PMID(CLUSTER_PRED,ITEM_SYSCALLS),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {0,-1,1, 0,PM_TIME_SEC,0} },
/* hotproc.predicate.ctxswitch */
{ PMID(CLUSTER_PRED,ITEM_CTXSWITCH),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {0,-1,1, 0,PM_TIME_SEC,0} },
/* hotproc.predicate.virtualsize */
{ PMID(CLUSTER_PRED,ITEM_VIRTUALSIZE),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {1,0,0, PM_SPACE_KBYTE,0,0} },
/* hotproc.predicate.residentsize */
{ PMID(CLUSTER_PRED,ITEM_RESIDENTSIZE),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {1,0,0, PM_SPACE_KBYTE,0,0} },
/* hotproc.predicate.iodemand */
{ PMID(CLUSTER_PRED,ITEM_IODEMAND),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {1,-1,0, PM_SPACE_KBYTE,PM_TIME_SEC,0} },
/*
* NOTE
* iowait and schedwait really have units of sec/sec, i.e. utilization
*/
/* hotproc.predicate.iowait */
{ PMID(CLUSTER_PRED,ITEM_IOWAIT),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {0,0,0, 0,0,0} },
/* hotproc.predicate.schedwait */
{ PMID(CLUSTER_PRED,ITEM_SCHEDWAIT),
PM_TYPE_FLOAT, PM_INDOM_PROC, PM_SEM_INSTANT, {0,0,0, 0,0,0} },
};
static int ndesc = (sizeof(desctab)/sizeof(desctab[0]));
static derived_pred_t *pred_buf = NULL;
void
ppred_init(int dom)
{
init_table(ndesc, desctab, dom);
}
int
ppred_getdesc(pmID pmid, pmDesc *desc)
{
return getdesc(ndesc, desctab, pmid, desc);
}
int
ppred_available(int item)
{
extern int need_psusage; /* is psusage buffer needed or not */
extern int need_accounting; /* is pracinfo buffer needed or not */
switch (item) {
case ITEM_SYSCALLS:
case ITEM_CTXSWITCH:
case ITEM_IODEMAND:
return need_psusage;
case ITEM_IOWAIT:
case ITEM_SCHEDWAIT:
return need_accounting;
case ITEM_VIRTUALSIZE:
case ITEM_RESIDENTSIZE:
/* need_psinfo - always have it */
return 1;
}
return 1;
}
int
ppred_setatom(int item, pmAtomValue *atom, int j)
{
switch (item) {
case ITEM_SYSCALLS:
atom->f = pred_buf[j].syscalls;
break;
case ITEM_CTXSWITCH:
atom->f = pred_buf[j].ctxswitch;
break;
case ITEM_VIRTUALSIZE:
atom->f = pred_buf[j].virtualsize;
break;
case ITEM_RESIDENTSIZE:
atom->f = pred_buf[j].residentsize;
break;
case ITEM_IODEMAND:
atom->f = pred_buf[j].iodemand;
break;
case ITEM_IOWAIT:
atom->f = pred_buf[j].iowait;
break;
case ITEM_SCHEDWAIT:
atom->f = pred_buf[j].schedwait;
break;
}
return 0;
}
int
ppred_getinfo(pid_t pid, int j)
{
process_t *node;
char *path;
node = lookup_curr_node(pid);
if (node == NULL) {
/* node should be there if it's in active list ! */
(void)fprintf(stderr, "%s: Internal error for lookup_node()", pmProgname);
exit(1);
}
proc_pid_to_path(pid, NULL, &path, PINFO_PATH);
if (access(path, R_OK) < 0)
return -oserror();
pred_buf[j] = node->preds;
return 0;
}
int
ppred_allocbuf(int size)
{
static int max_size = 0;
derived_pred_t *predb;
if (size > max_size) {
predb = realloc(pred_buf, size * sizeof(derived_pred_t));
if (predb == NULL)
return -oserror();
pred_buf = predb;
max_size = size;
}
return 0;
}
|
