xref: /freebsd/usr.sbin/sa/pdb.c (revision 19fae0f66023a97a9b464b3beeeabb2081f575b3)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 1994 Christopher G. Demetriou
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by Christopher G. Demetriou.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 #include <sys/types.h>
37 #include <sys/acct.h>
38 #include <err.h>
39 #include <errno.h>
40 #include <fcntl.h>
41 #include <stdbool.h>
42 #include <stdint.h>
43 #include <stdio.h>
44 #include <string.h>
45 #include "extern.h"
46 #include "pathnames.h"
47 
48 static int check_junk(const struct cmdinfo *);
49 static void add_ci(const struct cmdinfo *, struct cmdinfo *);
50 static void print_ci(const struct cmdinfo *, const struct cmdinfo *);
51 
52 static DB	*pacct_db;
53 
54 /* Legacy format in AHZV1 units. */
55 struct cmdinfov1 {
56 	char		ci_comm[MAXCOMLEN+2];	/* command name (+ '*') */
57 	uid_t		ci_uid;			/* user id */
58 	u_quad_t	ci_calls;		/* number of calls */
59 	u_quad_t	ci_etime;		/* elapsed time */
60 	u_quad_t	ci_utime;		/* user time */
61 	u_quad_t	ci_stime;		/* system time */
62 	u_quad_t	ci_mem;			/* memory use */
63 	u_quad_t	ci_io;			/* number of disk i/o ops */
64 	u_int		ci_flags;		/* flags; see below */
65 };
66 
67 /*
68  * Convert a v1 data record into the current version.
69  * Return 0 if OK, -1 on error, setting errno.
70  */
71 static int
72 v1_to_v2(DBT *key __unused, DBT *data)
73 {
74 	struct cmdinfov1 civ1;
75 	static struct cmdinfo civ2;
76 
77 	if (data->size != sizeof(civ1)) {
78 		errno = EFTYPE;
79 		return (-1);
80 	}
81 	memcpy(&civ1, data->data, data->size);
82 	memset(&civ2, 0, sizeof(civ2));
83 	memcpy(civ2.ci_comm, civ1.ci_comm, sizeof(civ2.ci_comm));
84 	civ2.ci_uid = civ1.ci_uid;
85 	civ2.ci_calls = civ1.ci_calls;
86 	civ2.ci_etime = ((double)civ1.ci_etime / AHZV1) * 1000000;
87 	civ2.ci_utime = ((double)civ1.ci_utime / AHZV1) * 1000000;
88 	civ2.ci_stime = ((double)civ1.ci_stime / AHZV1) * 1000000;
89 	civ2.ci_mem = civ1.ci_mem;
90 	civ2.ci_io = civ1.ci_io;
91 	civ2.ci_flags = civ1.ci_flags;
92 	data->size = sizeof(civ2);
93 	data->data = &civ2;
94 	return (0);
95 }
96 
97 /* Copy pdb_file to in-memory pacct_db. */
98 int
99 pacct_init(void)
100 {
101 	return (db_copy_in(&pacct_db, pdb_file, "process accounting",
102 	    NULL, v1_to_v2));
103 }
104 
105 void
106 pacct_destroy(void)
107 {
108 	db_destroy(pacct_db, "process accounting");
109 }
110 
111 int
112 pacct_add(const struct cmdinfo *ci)
113 {
114 	DBT key, data;
115 	struct cmdinfo newci;
116 	char keydata[sizeof ci->ci_comm];
117 	int rv;
118 
119 	bcopy(ci->ci_comm, &keydata, sizeof keydata);
120 	key.data = &keydata;
121 	key.size = strlen(keydata);
122 
123 	rv = DB_GET(pacct_db, &key, &data, 0);
124 	if (rv < 0) {
125 		warn("get key %s from process accounting stats", ci->ci_comm);
126 		return (-1);
127 	} else if (rv == 0) {	/* it's there; copy whole thing */
128 		/* XXX compare size if paranoid */
129 		/* add the old data to the new data */
130 		bcopy(data.data, &newci, data.size);
131 	} else {		/* it's not there; zero it and copy the key */
132 		bzero(&newci, sizeof newci);
133 		bcopy(key.data, newci.ci_comm, key.size);
134 	}
135 
136 	add_ci(ci, &newci);
137 
138 	data.data = &newci;
139 	data.size = sizeof newci;
140 	rv = DB_PUT(pacct_db, &key, &data, 0);
141 	if (rv < 0) {
142 		warn("add key %s to process accounting stats", ci->ci_comm);
143 		return (-1);
144 	} else if (rv == 1) {
145 		warnx("duplicate key %s in process accounting stats",
146 		    ci->ci_comm);
147 		return (-1);
148 	}
149 
150 	return (0);
151 }
152 
153 /* Copy in-memory pacct_db to pdb_file. */
154 int
155 pacct_update(void)
156 {
157 	return (db_copy_out(pacct_db, pdb_file, "process accounting",
158 	    NULL));
159 }
160 
161 void
162 pacct_print(void)
163 {
164 	BTREEINFO bti;
165 	DBT key, data, ndata;
166 	DB *output_pacct_db;
167 	struct cmdinfo *cip, ci, ci_total, ci_other, ci_junk;
168 	int rv;
169 
170 	bzero(&ci_total, sizeof ci_total);
171 	strcpy(ci_total.ci_comm, "");
172 	bzero(&ci_other, sizeof ci_other);
173 	strcpy(ci_other.ci_comm, "***other");
174 	bzero(&ci_junk, sizeof ci_junk);
175 	strcpy(ci_junk.ci_comm, "**junk**");
176 
177 	/*
178 	 * Retrieve them into new DB, sorted by appropriate key.
179 	 * At the same time, cull 'other' and 'junk'
180 	 */
181 	bzero(&bti, sizeof bti);
182 	bti.compare = sa_cmp;
183 	output_pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
184 	if (output_pacct_db == NULL) {
185 		warn("couldn't sort process accounting stats");
186 		return;
187 	}
188 
189 	ndata.data = NULL;
190 	ndata.size = 0;
191 	rv = DB_SEQ(pacct_db, &key, &data, R_FIRST);
192 	if (rv < 0)
193 		warn("retrieving process accounting stats");
194 	while (rv == 0) {
195 		cip = (struct cmdinfo *) data.data;
196 		bcopy(cip, &ci, sizeof ci);
197 
198 		/* add to total */
199 		add_ci(&ci, &ci_total);
200 
201 		if (vflag && ci.ci_calls <= cutoff &&
202 		    (fflag || check_junk(&ci))) {
203 			/* put it into **junk** */
204 			add_ci(&ci, &ci_junk);
205 			goto next;
206 		}
207 		if (!aflag &&
208 		    ((ci.ci_flags & CI_UNPRINTABLE) != 0 || ci.ci_calls <= 1)) {
209 			/* put into ***other */
210 			add_ci(&ci, &ci_other);
211 			goto next;
212 		}
213 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
214 		if (rv < 0)
215 			warn("sorting process accounting stats");
216 
217 next:		rv = DB_SEQ(pacct_db, &key, &data, R_NEXT);
218 		if (rv < 0)
219 			warn("retrieving process accounting stats");
220 	}
221 
222 	/* insert **junk** and ***other */
223 	if (ci_junk.ci_calls != 0) {
224 		data.data = &ci_junk;
225 		data.size = sizeof ci_junk;
226 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
227 		if (rv < 0)
228 			warn("sorting process accounting stats");
229 	}
230 	if (ci_other.ci_calls != 0) {
231 		data.data = &ci_other;
232 		data.size = sizeof ci_other;
233 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
234 		if (rv < 0)
235 			warn("sorting process accounting stats");
236 	}
237 
238 	/* print out the total */
239 	print_ci(&ci_total, &ci_total);
240 
241 	/* print out; if reversed, print first (smallest) first */
242 	rv = DB_SEQ(output_pacct_db, &data, &ndata, rflag ? R_FIRST : R_LAST);
243 	if (rv < 0)
244 		warn("retrieving process accounting report");
245 	while (rv == 0) {
246 		cip = (struct cmdinfo *) data.data;
247 		bcopy(cip, &ci, sizeof ci);
248 
249 		print_ci(&ci, &ci_total);
250 
251 		rv = DB_SEQ(output_pacct_db, &data, &ndata,
252 		    rflag ? R_NEXT : R_PREV);
253 		if (rv < 0)
254 			warn("retrieving process accounting report");
255 	}
256 	DB_CLOSE(output_pacct_db);
257 }
258 
259 static int
260 check_junk(const struct cmdinfo *cip)
261 {
262 	char *cp;
263 	size_t len;
264 
265 	fprintf(stderr, "%s (%ju) -- ", cip->ci_comm, (uintmax_t)cip->ci_calls);
266 	cp = fgetln(stdin, &len);
267 
268 	return (cp && (cp[0] == 'y' || cp[0] == 'Y')) ? 1 : 0;
269 }
270 
271 static void
272 add_ci(const struct cmdinfo *fromcip, struct cmdinfo *tocip)
273 {
274 	tocip->ci_calls += fromcip->ci_calls;
275 	tocip->ci_etime += fromcip->ci_etime;
276 	tocip->ci_utime += fromcip->ci_utime;
277 	tocip->ci_stime += fromcip->ci_stime;
278 	tocip->ci_mem += fromcip->ci_mem;
279 	tocip->ci_io += fromcip->ci_io;
280 }
281 
282 static void
283 print_ci(const struct cmdinfo *cip, const struct cmdinfo *totalcip)
284 {
285 	double t, c;
286 	int uflow;
287 
288 	c = cip->ci_calls ? cip->ci_calls : 1;
289 	t = (cip->ci_utime + cip->ci_stime) / 1000000;
290 	if (t < 0.01) {
291 		t = 0.01;
292 		uflow = 1;
293 	} else
294 		uflow = 0;
295 
296 	printf("%8ju ", (uintmax_t)cip->ci_calls);
297 	if (cflag) {
298 		if (cip != totalcip)
299 			printf(" %4.1f%%  ", cip->ci_calls /
300 			    (double)totalcip->ci_calls * 100);
301 		else
302 			printf(" %4s   ", "");
303 	}
304 
305 	if (jflag)
306 		printf("%11.3fre ", cip->ci_etime / (1000000 * c));
307 	else
308 		printf("%11.3fre ", cip->ci_etime / (60.0 * 1000000));
309 	if (cflag) {
310 		if (cip != totalcip)
311 			printf(" %4.1f%%  ", cip->ci_etime /
312 			    totalcip->ci_etime * 100);
313 		else
314 			printf(" %4s   ", "");
315 	}
316 
317 	if (!lflag) {
318 		if (jflag)
319 			printf("%11.3fcp ", t / (double) cip->ci_calls);
320 		else
321 			printf("%11.2fcp ", t / 60.0);
322 		if (cflag) {
323 			if (cip != totalcip)
324 				printf(" %4.1f%%  ",
325 				    (cip->ci_utime + cip->ci_stime) /
326 				    (totalcip->ci_utime + totalcip->ci_stime) *
327 				    100);
328 			else
329 				printf(" %4s   ", "");
330 		}
331 	} else {
332 		if (jflag)
333 			printf("%11.3fu ", cip->ci_utime / (1000000 * c));
334 		else
335 			printf("%11.2fu ", cip->ci_utime / (60.0 * 1000000));
336 		if (cflag) {
337 			if (cip != totalcip)
338 				printf(" %4.1f%%  ", cip->ci_utime /
339 				    (double)totalcip->ci_utime * 100);
340 			else
341 				printf(" %4s   ", "");
342 		}
343 		if (jflag)
344 			printf("%11.3fs ", cip->ci_stime / (1000000 * c));
345 		else
346 			printf("%11.2fs ", cip->ci_stime / (60.0 * 1000000));
347 		if (cflag) {
348 			if (cip != totalcip)
349 				printf(" %4.1f%%  ", cip->ci_stime /
350 				    (double)totalcip->ci_stime * 100);
351 			else
352 				printf(" %4s   ", "");
353 		}
354 	}
355 
356 	if (tflag) {
357 		if (!uflow)
358 			printf("%8.2fre/cp ",
359 			    cip->ci_etime /
360 			    (cip->ci_utime + cip->ci_stime));
361 		else
362 			printf("*ignore*      ");
363 	}
364 
365 	if (Dflag)
366 		printf("%10.0fio ", cip->ci_io);
367 	else
368 		printf("%8.0favio ", cip->ci_io / c);
369 
370 	if (Kflag)
371 		printf("%10.0fk*sec ", cip->ci_mem);
372 	else
373 		printf("%8.0fk ", cip->ci_mem / t);
374 
375 	printf("  %s\n", cip->ci_comm);
376 }
377