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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_proc.h"
#define PLUGIN_PROC_MODULE_VMSTAT_NAME "/proc/vmstat"
int do_proc_vmstat(int update_every, usec_t dt) {
(void)dt;
static procfile *ff = NULL;
static int do_swapio = -1, do_io = -1, do_pgfaults = -1, do_numa = -1;
static int has_numa = -1;
static ARL_BASE *arl_base = NULL;
static unsigned long long numa_foreign = 0ULL;
static unsigned long long numa_hint_faults = 0ULL;
static unsigned long long numa_hint_faults_local = 0ULL;
static unsigned long long numa_huge_pte_updates = 0ULL;
static unsigned long long numa_interleave = 0ULL;
static unsigned long long numa_local = 0ULL;
static unsigned long long numa_other = 0ULL;
static unsigned long long numa_pages_migrated = 0ULL;
static unsigned long long numa_pte_updates = 0ULL;
static unsigned long long pgfault = 0ULL;
static unsigned long long pgmajfault = 0ULL;
static unsigned long long pgpgin = 0ULL;
static unsigned long long pgpgout = 0ULL;
static unsigned long long pswpin = 0ULL;
static unsigned long long pswpout = 0ULL;
if(unlikely(!arl_base)) {
do_swapio = config_get_boolean_ondemand("plugin:proc:/proc/vmstat", "swap i/o", CONFIG_BOOLEAN_AUTO);
do_io = config_get_boolean("plugin:proc:/proc/vmstat", "disk i/o", 1);
do_pgfaults = config_get_boolean("plugin:proc:/proc/vmstat", "memory page faults", 1);
do_numa = config_get_boolean_ondemand("plugin:proc:/proc/vmstat", "system-wide numa metric summary", CONFIG_BOOLEAN_AUTO);
arl_base = arl_create("vmstat", NULL, 60);
arl_expect(arl_base, "pgfault", &pgfault);
arl_expect(arl_base, "pgmajfault", &pgmajfault);
arl_expect(arl_base, "pgpgin", &pgpgin);
arl_expect(arl_base, "pgpgout", &pgpgout);
arl_expect(arl_base, "pswpin", &pswpin);
arl_expect(arl_base, "pswpout", &pswpout);
if(do_numa == CONFIG_BOOLEAN_YES || (do_numa == CONFIG_BOOLEAN_AUTO && get_numa_node_count() >= 2)) {
arl_expect(arl_base, "numa_foreign", &numa_foreign);
arl_expect(arl_base, "numa_hint_faults_local", &numa_hint_faults_local);
arl_expect(arl_base, "numa_hint_faults", &numa_hint_faults);
arl_expect(arl_base, "numa_huge_pte_updates", &numa_huge_pte_updates);
arl_expect(arl_base, "numa_interleave", &numa_interleave);
arl_expect(arl_base, "numa_local", &numa_local);
arl_expect(arl_base, "numa_other", &numa_other);
arl_expect(arl_base, "numa_pages_migrated", &numa_pages_migrated);
arl_expect(arl_base, "numa_pte_updates", &numa_pte_updates);
}
else {
// Do not expect numa metrics when they are not needed.
// By not adding them, the ARL will stop processing the file
// when all the expected metrics are collected.
// Also ARL will not parse their values.
has_numa = 0;
do_numa = CONFIG_BOOLEAN_NO;
}
}
if(unlikely(!ff)) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/vmstat");
ff = procfile_open(config_get("plugin:proc:/proc/vmstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
if(unlikely(!ff)) return 1;
}
ff = procfile_readall(ff);
if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time
size_t lines = procfile_lines(ff), l;
arl_begin(arl_base);
for(l = 0; l < lines ;l++) {
size_t words = procfile_linewords(ff, l);
if(unlikely(words < 2)) {
if(unlikely(words)) error("Cannot read /proc/vmstat line %zu. Expected 2 params, read %zu.", l, words);
continue;
}
if(unlikely(arl_check(arl_base,
procfile_lineword(ff, l, 0),
procfile_lineword(ff, l, 1)))) break;
}
// --------------------------------------------------------------------
if(pswpin || pswpout || do_swapio == CONFIG_BOOLEAN_YES) {
do_swapio = CONFIG_BOOLEAN_YES;
static RRDSET *st_swapio = NULL;
static RRDDIM *rd_in = NULL, *rd_out = NULL;
if(unlikely(!st_swapio)) {
st_swapio = rrdset_create_localhost(
"system"
, "swapio"
, NULL
, "swap"
, NULL
, "Swap I/O"
, "KiB/s"
, PLUGIN_PROC_NAME
, PLUGIN_PROC_MODULE_VMSTAT_NAME
, NETDATA_CHART_PRIO_SYSTEM_SWAPIO
, update_every
, RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st_swapio, "in", NULL, sysconf(_SC_PAGESIZE), 1024, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st_swapio, "out", NULL, -sysconf(_SC_PAGESIZE), 1024, RRD_ALGORITHM_INCREMENTAL);
}
else rrdset_next(st_swapio);
rrddim_set_by_pointer(st_swapio, rd_in, pswpin);
rrddim_set_by_pointer(st_swapio, rd_out, pswpout);
rrdset_done(st_swapio);
}
// --------------------------------------------------------------------
if(do_io) {
static RRDSET *st_io = NULL;
static RRDDIM *rd_in = NULL, *rd_out = NULL;
if(unlikely(!st_io)) {
st_io = rrdset_create_localhost(
"system"
, "pgpgio"
, NULL
, "disk"
, NULL
, "Memory Paged from/to disk"
, "KiB/s"
, PLUGIN_PROC_NAME
, PLUGIN_PROC_MODULE_VMSTAT_NAME
, NETDATA_CHART_PRIO_SYSTEM_PGPGIO
, update_every
, RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st_io, "in", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st_io, "out", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else rrdset_next(st_io);
rrddim_set_by_pointer(st_io, rd_in, pgpgin);
rrddim_set_by_pointer(st_io, rd_out, pgpgout);
rrdset_done(st_io);
}
// --------------------------------------------------------------------
if(do_pgfaults) {
static RRDSET *st_pgfaults = NULL;
static RRDDIM *rd_minor = NULL, *rd_major = NULL;
if(unlikely(!st_pgfaults)) {
st_pgfaults = rrdset_create_localhost(
"mem"
, "pgfaults"
, NULL
, "system"
, NULL
, "Memory Page Faults"
, "faults/s"
, PLUGIN_PROC_NAME
, PLUGIN_PROC_MODULE_VMSTAT_NAME
, NETDATA_CHART_PRIO_MEM_SYSTEM_PGFAULTS
, update_every
, RRDSET_TYPE_LINE
);
rrdset_flag_set(st_pgfaults, RRDSET_FLAG_DETAIL);
rd_minor = rrddim_add(st_pgfaults, "minor", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_major = rrddim_add(st_pgfaults, "major", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else rrdset_next(st_pgfaults);
rrddim_set_by_pointer(st_pgfaults, rd_minor, pgfault);
rrddim_set_by_pointer(st_pgfaults, rd_major, pgmajfault);
rrdset_done(st_pgfaults);
}
// --------------------------------------------------------------------
// Ondemand criteria for NUMA. Since this won't change at run time, we
// check it only once. We check whether the node count is >= 2 because
// single-node systems have uninteresting statistics (since all accesses
// are local).
if(unlikely(has_numa == -1))
has_numa = (numa_local || numa_foreign || numa_interleave || numa_other || numa_pte_updates ||
numa_huge_pte_updates || numa_hint_faults || numa_hint_faults_local || numa_pages_migrated) ? 1 : 0;
if(do_numa == CONFIG_BOOLEAN_YES || (do_numa == CONFIG_BOOLEAN_AUTO && has_numa)) {
do_numa = CONFIG_BOOLEAN_YES;
static RRDSET *st_numa = NULL;
static RRDDIM *rd_local = NULL, *rd_foreign = NULL, *rd_interleave = NULL, *rd_other = NULL, *rd_pte_updates = NULL, *rd_huge_pte_updates = NULL, *rd_hint_faults = NULL, *rd_hint_faults_local = NULL, *rd_pages_migrated = NULL;
if(unlikely(!st_numa)) {
st_numa = rrdset_create_localhost(
"mem"
, "numa"
, NULL
, "numa"
, NULL
, "NUMA events"
, "events/s"
, PLUGIN_PROC_NAME
, PLUGIN_PROC_MODULE_VMSTAT_NAME
, NETDATA_CHART_PRIO_MEM_NUMA
, update_every
, RRDSET_TYPE_LINE
);
rrdset_flag_set(st_numa, RRDSET_FLAG_DETAIL);
// These depend on CONFIG_NUMA in the kernel.
rd_local = rrddim_add(st_numa, "local", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_foreign = rrddim_add(st_numa, "foreign", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_interleave = rrddim_add(st_numa, "interleave", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_other = rrddim_add(st_numa, "other", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
// The following stats depend on CONFIG_NUMA_BALANCING in the
// kernel.
rd_pte_updates = rrddim_add(st_numa, "pte_updates", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_huge_pte_updates = rrddim_add(st_numa, "huge_pte_updates", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_hint_faults = rrddim_add(st_numa, "hint_faults", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_hint_faults_local = rrddim_add(st_numa, "hint_faults_local", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_pages_migrated = rrddim_add(st_numa, "pages_migrated", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else rrdset_next(st_numa);
rrddim_set_by_pointer(st_numa, rd_local, numa_local);
rrddim_set_by_pointer(st_numa, rd_foreign, numa_foreign);
rrddim_set_by_pointer(st_numa, rd_interleave, numa_interleave);
rrddim_set_by_pointer(st_numa, rd_other, numa_other);
rrddim_set_by_pointer(st_numa, rd_pte_updates, numa_pte_updates);
rrddim_set_by_pointer(st_numa, rd_huge_pte_updates, numa_huge_pte_updates);
rrddim_set_by_pointer(st_numa, rd_hint_faults, numa_hint_faults);
rrddim_set_by_pointer(st_numa, rd_hint_faults_local, numa_hint_faults_local);
rrddim_set_by_pointer(st_numa, rd_pages_migrated, numa_pages_migrated);
rrdset_done(st_numa);
}
return 0;
}
|
