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
|
/*
* Copyright (c) 1997-2001 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
* interp1 - backward PM_MODE_INTERP exercises
*/
#include <pcp/pmapi.h>
#include <pcp/impl.h>
int
main(int argc, char **argv)
{
int c;
int sts;
int j;
int k;
double tdiff;
int dflag = 0;
int errflag = 0;
int ahtype = 0;
char *host = NULL; /* pander to gcc */
pmLogLabel label; /* get hostname for archives */
char *namespace = PM_NS_DEFAULT;
int samples = 10;
double delta = 1.0;
int msec;
char *endnum;
pmResult *result;
pmResult *prev = (pmResult *)0;
int i;
int numpmid = 3;
pmID pmid[3];
char *name[] = { "sample.seconds", "sample.drift", "sample.milliseconds" };
pmDesc desc[3];
struct timeval tend = {0x7fffffff, 0};
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "a:D:dn:s:t:?")) != EOF) {
switch (c) {
case 'a': /* archive name */
if (ahtype != 0) {
fprintf(stderr, "%s: at most one of -a and/or -h allowed\n", pmProgname);
errflag++;
}
ahtype = PM_CONTEXT_ARCHIVE;
host = optarg;
break;
case 'd': /* use metric descriptor to decide on rate conversion */
dflag++;
break;
case 'D': /* debug flag */
sts = __pmParseDebug(optarg);
if (sts < 0) {
fprintf(stderr, "%s: unrecognized debug flag specification (%s)\n",
pmProgname, optarg);
errflag++;
}
else
pmDebug |= sts;
break;
case 'n': /* alternative name space file */
namespace = optarg;
break;
case 's': /* sample count */
samples = (int)strtol(optarg, &endnum, 10);
if (*endnum != '\0' || samples < 0) {
fprintf(stderr, "%s: -s requires numeric argument\n", pmProgname);
errflag++;
}
break;
case 't': /* delta seconds (double) */
delta = strtod(optarg, &endnum);
if (*endnum != '\0' || delta <= 0.0) {
fprintf(stderr, "%s: -t requires floating point argument\n", pmProgname);
errflag++;
}
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag) {
fprintf(stderr,
"Usage: %s options ...\n\
\n\
Options\n\
-a archive metrics source is an archive log\n\
-d use metric descriptors to decide on value or delta\n\
-D debug standard PCP debug flag\n\
-n namespace use an alternative PMNS\n\
-s samples terminate after this many iterations\n\
-t delta sample interval in seconds(float) [default 1.0]\n",
pmProgname);
exit(1);
}
if ((sts = pmLoadNameSpace(namespace)) < 0) {
printf("%s: Cannot load namespace from \"%s\": %s\n", pmProgname, namespace, pmErrStr(sts));
exit(1);
}
if (ahtype == 0) {
fprintf(stderr, "%s: -a is not optional!\n", pmProgname);
exit(1);
}
if ((sts = pmNewContext(ahtype, host)) < 0) {
fprintf(stderr, "%s: Cannot open archive \"%s\": %s\n",
pmProgname, host, pmErrStr(sts));
exit(1);
}
if ((sts = pmGetArchiveLabel(&label)) < 0) {
fprintf(stderr, "%s: Cannot get archive label record: %s\n",
pmProgname, pmErrStr(sts));
exit(1);
}
/* non-flag args are argv[optind] ... argv[argc-1] */
if (optind < argc) {
numpmid = 0;
while (optind < argc && numpmid < 3) {
name[numpmid] = argv[optind];
printf("metric[%d]: %s\n", numpmid, name[numpmid]);
optind++;
numpmid++;
}
}
sts = pmSetMode(PM_MODE_BACK, &tend, 0);
if (sts < 0) {
printf("pmSetMode: %s\n", pmErrStr(sts));
exit(1);
}
sts = pmFetchArchive(&result);
if (sts < 0) {
printf("pmFetchArchive: %s\n", pmErrStr(sts));
exit(1);
}
msec = -delta * 1000;
sts = pmSetMode(PM_MODE_INTERP, &result->timestamp, msec);
if (sts < 0) {
printf("pmSetMode: %s\n", pmErrStr(sts));
exit(1);
}
pmFreeResult(result);
sts = pmLookupName(numpmid, name, pmid);
if (sts < 0) {
printf("pmLookupName: %s\n", pmErrStr(sts));
exit(1);
}
for (i = 0; i < numpmid; i++) {
sts = pmLookupDesc(pmid[i], &desc[i]);
if (sts < 0) {
printf("Warning: pmLookupDesc(%s): %s\n", pmIDStr(pmid[i]), pmErrStr(sts));
desc[i].type = -1;
}
}
for (i = 0; i < samples; i++) {
sts = pmFetch(numpmid, pmid, &result);
if (sts < 0) {
printf("sample[%d] pmFetch: %s\n", i, pmErrStr(sts));
break;
}
if (prev) {
tdiff = result->timestamp.tv_sec - prev->timestamp.tv_sec +
(double)(result->timestamp.tv_usec - prev->timestamp.tv_usec) / 1000000;
printf("\nsample %d, delta time=%.3f secs\n", i, tdiff);
for (j = 0; j < numpmid; j++) {
printf("%s: ", name[j]);
if (result->vset[j]->numval == 0)
printf("no current values ");
if (prev->vset[j]->numval == 0)
printf("no prior values ");
if (result->vset[j]->numval < 0)
printf("current error %s ", pmErrStr(result->vset[j]->numval));
if (prev->vset[j]->numval < 0 && prev->vset[j]->numval != result->vset[j]->numval)
printf("prior error %s ", pmErrStr(prev->vset[j]->numval));
putchar('\n');
for (k = 0; k < prev->vset[j]->numval && k < result->vset[j]->numval; k++) {
if (result->vset[j]->vlist[k].inst != prev->vset[j]->vlist[k].inst) {
printf("inst[%d]: mismatch, prior=%d, current=%d\n", k,
prev->vset[j]->vlist[k].inst,
result->vset[j]->vlist[k].inst);
continue;
}
if (desc[j].type == PM_TYPE_32 || desc[j].type == PM_TYPE_U32) {
if (!dflag || desc[j].sem == PM_SEM_COUNTER)
printf("delta[%d]: %d\n", k,
result->vset[j]->vlist[k].value.lval -
prev->vset[j]->vlist[k].value.lval);
else
printf("value[%d]: %d\n", k,
result->vset[j]->vlist[k].value.lval);
}
else if (desc[j].type == PM_TYPE_DOUBLE) {
void *cp = (void *)result->vset[j]->vlist[k].value.pval->vbuf;
void *pp = (void *)prev->vset[j]->vlist[k].value.pval->vbuf;
double cv, pv;
pmAtomValue av;
memcpy((void *)&av, cp, sizeof(pmAtomValue));
cv = av.d;
if (!dflag || desc[j].sem == PM_SEM_COUNTER) {
memcpy((void *)&av, pp, sizeof(pmAtomValue));
pv = av.d;
printf("delta[%d]: %.0f\n", k, cv - pv);
}
else
printf("value[%d]: %.0f\n", k, cv);
}
else if (desc[j].type == PM_TYPE_STRING) {
printf("value[%d]: %s\n", k,
result->vset[j]->vlist[k].value.pval->vbuf);
}
else {
printf("don't know how to display type %d for PMID %s\n",
desc[j].type, pmIDStr(pmid[j]));
break;
}
}
}
pmFreeResult(prev);
}
prev = result;
}
printf("\n%d samples required %d log reads\n", i, __pmLogReads);
exit(0);
}
|
