usr.sbin/sa/pdb.c

   1 /*
   2  * Copyright (c) 1994 Christopher G. Demetriou
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Christopher G. Demetriou.
  16  * 4. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * $FreeBSD: src/usr.sbin/sa/pdb.c,v 1.7 1999/08/28 01:19:53 peter Exp $
  31  * $DragonFly: src/usr.sbin/sa/pdb.c,v 1.4 2005/12/05 02:40:28 swildner Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/acct.h>
  36 #include <err.h>
  37 #include <errno.h>
  38 #include <fcntl.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include "extern.h"
  42 #include "pathnames.h"
  43
  44 static int check_junk(struct cmdinfo *);
  45 static void add_ci(const struct cmdinfo *, struct cmdinfo *);
  46 static void print_ci(const struct cmdinfo *, const struct cmdinfo *);
  47
  48 static DB       *pacct_db;
  49
  50 int
  51 pacct_init(void)
  52 {
  53         DB *saved_pacct_db;
  54         int error;
  55
  56         pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, NULL);
  57         if (pacct_db == NULL)
  58                 return (-1);
  59
  60         error = 0;
  61         if (!iflag) {
  62                 DBT key, data;
  63                 int serr, nerr;
  64
  65                 saved_pacct_db = dbopen(_PATH_SAVACCT, O_RDONLY, 0, DB_BTREE,
  66                     NULL);
  67                 if (saved_pacct_db == NULL) {
  68                         error = errno == ENOENT ? 0 : -1;
  69                         if (error)
  70                                 warn("retrieving process accounting summary");
  71                         goto out;
  72                 }
  73
  74                 serr = DB_SEQ(saved_pacct_db, &key, &data, R_FIRST);
  75                 if (serr < 0) {
  76                         warn("retrieving process accounting summary");
  77                         error = -1;
  78                         goto closeout;
  79                 }
  80                 while (serr == 0) {
  81                         nerr = DB_PUT(pacct_db, &key, &data, 0);
  82                         if (nerr < 0) {
  83                                 warn("initializing process accounting stats");
  84                                 error = -1;
  85                                 break;
  86                         }
  87
  88                         serr = DB_SEQ(saved_pacct_db, &key, &data, R_NEXT);
  89                         if (serr < 0) {
  90                                 warn("retrieving process accounting summary");
  91                                 error = -1;
  92                                 break;
  93                         }
  94                 }
  95
  96 closeout:       if (DB_CLOSE(saved_pacct_db) < 0) {
  97                         warn("closing process accounting summary");
  98                         error = -1;
  99                 }
 100         }
 101
 102 out:    if (error != 0)
 103                 pacct_destroy();
 104         return (error);
 105 }
 106
 107 void
 108 pacct_destroy(void)
 109 {
 110         if (DB_CLOSE(pacct_db) < 0)
 111                 warn("destroying process accounting stats");
 112 }
 113
 114 int
 115 pacct_add(const struct cmdinfo *ci)
 116 {
 117         DBT key, data;
 118         struct cmdinfo newci;
 119         char keydata[sizeof ci->ci_comm];
 120         int rv;
 121
 122         bcopy(ci->ci_comm, &keydata, sizeof keydata);
 123         key.data = &keydata;
 124         key.size = strlen(keydata);
 125
 126         rv = DB_GET(pacct_db, &key, &data, 0);
 127         if (rv < 0) {
 128                 warn("get key %s from process accounting stats", ci->ci_comm);
 129                 return (-1);
 130         } else if (rv == 0) {   /* it's there; copy whole thing */
 131                 /* XXX compare size if paranoid */
 132                 /* add the old data to the new data */
 133                 bcopy(data.data, &newci, data.size);
 134         } else {                /* it's not there; zero it and copy the key */
 135                 bzero(&newci, sizeof newci);
 136                 bcopy(key.data, newci.ci_comm, key.size);
 137         }
 138
 139         add_ci(ci, &newci);
 140
 141         data.data = &newci;
 142         data.size = sizeof newci;
 143         rv = DB_PUT(pacct_db, &key, &data, 0);
 144         if (rv < 0) {
 145                 warn("add key %s to process accounting stats", ci->ci_comm);
 146                 return (-1);
 147         } else if (rv == 1) {
 148                 warnx("duplicate key %s in process accounting stats",
 149                     ci->ci_comm);
 150                 return (-1);
 151         }
 152
 153         return (0);
 154 }
 155
 156 int
 157 pacct_update(void)
 158 {
 159         DB *saved_pacct_db;
 160         DBT key, data;
 161         int error, serr, nerr;
 162
 163         saved_pacct_db = dbopen(_PATH_SAVACCT, O_RDWR|O_CREAT|O_TRUNC, 0644,
 164             DB_BTREE, NULL);
 165         if (saved_pacct_db == NULL) {
 166                 warn("creating process accounting summary");
 167                 return (-1);
 168         }
 169
 170         error = 0;
 171
 172         serr = DB_SEQ(pacct_db, &key, &data, R_FIRST);
 173         if (serr < 0) {
 174                 warn("retrieving process accounting stats");
 175                 error = -1;
 176         }
 177         while (serr == 0) {
 178                 nerr = DB_PUT(saved_pacct_db, &key, &data, 0);
 179                 if (nerr < 0) {
 180                         warn("saving process accounting summary");
 181                         error = -1;
 182                         break;
 183                 }
 184
 185                 serr = DB_SEQ(pacct_db, &key, &data, R_NEXT);
 186                 if (serr < 0) {
 187                         warn("retrieving process accounting stats");
 188                         error = -1;
 189                         break;
 190                 }
 191         }
 192
 193         if (DB_SYNC(saved_pacct_db, 0) < 0) {
 194                 warn("syncing process accounting summary");
 195                 error = -1;
 196         }
 197         if (DB_CLOSE(saved_pacct_db) < 0) {
 198                 warn("closing process accounting summary");
 199                 error = -1;
 200         }
 201         return error;
 202 }
 203
 204 void
 205 pacct_print(void)
 206 {
 207         BTREEINFO bti;
 208         DBT key, data, ndata;
 209         DB *output_pacct_db;
 210         struct cmdinfo *cip, ci, ci_total, ci_other, ci_junk;
 211         int rv;
 212
 213         bzero(&ci_total, sizeof ci_total);
 214         strcpy(ci_total.ci_comm, "");
 215         bzero(&ci_other, sizeof ci_other);
 216         strcpy(ci_other.ci_comm, "***other");
 217         bzero(&ci_junk, sizeof ci_junk);
 218         strcpy(ci_junk.ci_comm, "**junk**");
 219
 220         /*
 221          * Retrieve them into new DB, sorted by appropriate key.
 222          * At the same time, cull 'other' and 'junk'
 223          */
 224         bzero(&bti, sizeof bti);
 225         bti.compare = sa_cmp;
 226         output_pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
 227         if (output_pacct_db == NULL) {
 228                 warn("couldn't sort process accounting stats");
 229                 return;
 230         }
 231
 232         ndata.data = NULL;
 233         ndata.size = 0;
 234         rv = DB_SEQ(pacct_db, &key, &data, R_FIRST);
 235         if (rv < 0)
 236                 warn("retrieving process accounting stats");
 237         while (rv == 0) {
 238                 cip = (struct cmdinfo *) data.data;
 239                 bcopy(cip, &ci, sizeof ci);
 240
 241                 /* add to total */
 242                 add_ci(&ci, &ci_total);
 243
 244                 if (vflag && ci.ci_calls <= cutoff &&
 245                     (fflag || check_junk(&ci))) {
 246                         /* put it into **junk** */
 247                         add_ci(&ci, &ci_junk);
 248                         goto next;
 249                 }
 250                 if (!aflag &&
 251                     ((ci.ci_flags & CI_UNPRINTABLE) != 0 || ci.ci_calls <= 1)) {
 252                         /* put into ***other */
 253                         add_ci(&ci, &ci_other);
 254                         goto next;
 255                 }
 256                 rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
 257                 if (rv < 0)
 258                         warn("sorting process accounting stats");
 259
 260 next:           rv = DB_SEQ(pacct_db, &key, &data, R_NEXT);
 261                 if (rv < 0)
 262                         warn("retrieving process accounting stats");
 263         }
 264
 265         /* insert **junk** and ***other */
 266         if (ci_junk.ci_calls != 0) {
 267                 data.data = &ci_junk;
 268                 data.size = sizeof ci_junk;
 269                 rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
 270                 if (rv < 0)
 271                         warn("sorting process accounting stats");
 272         }
 273         if (ci_other.ci_calls != 0) {
 274                 data.data = &ci_other;
 275                 data.size = sizeof ci_other;
 276                 rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
 277                 if (rv < 0)
 278                         warn("sorting process accounting stats");
 279         }
 280
 281         /* print out the total */
 282         print_ci(&ci_total, &ci_total);
 283
 284         /* print out; if reversed, print first (smallest) first */
 285         rv = DB_SEQ(output_pacct_db, &data, &ndata, rflag ? R_FIRST : R_LAST);
 286         if (rv < 0)
 287                 warn("retrieving process accounting report");
 288         while (rv == 0) {
 289                 cip = (struct cmdinfo *) data.data;
 290                 bcopy(cip, &ci, sizeof ci);
 291
 292                 print_ci(&ci, &ci_total);
 293
 294                 rv = DB_SEQ(output_pacct_db, &data, &ndata,
 295                     rflag ? R_NEXT : R_PREV);
 296                 if (rv < 0)
 297                         warn("retrieving process accounting report");
 298         }
 299         DB_CLOSE(output_pacct_db);
 300 }
 301
 302 static int
 303 check_junk(struct cmdinfo *cip)
 304 {
 305         char *cp;
 306         size_t len;
 307
 308         fprintf(stderr, "%s (%qu) -- ", cip->ci_comm, cip->ci_calls);
 309         cp = fgetln(stdin, &len);
 310
 311         return (cp && (cp[0] == 'y' || cp[0] == 'Y')) ? 1 : 0;
 312 }
 313
 314 static void
 315 add_ci(const struct cmdinfo *fromcip, struct cmdinfo *tocip)
 316 {
 317         tocip->ci_calls += fromcip->ci_calls;
 318         tocip->ci_etime += fromcip->ci_etime;
 319         tocip->ci_utime += fromcip->ci_utime;
 320         tocip->ci_stime += fromcip->ci_stime;
 321         tocip->ci_mem += fromcip->ci_mem;
 322         tocip->ci_io += fromcip->ci_io;
 323 }
 324
 325 static void
 326 print_ci(const struct cmdinfo *cip, const struct cmdinfo *totalcip)
 327 {
 328         double t, c;
 329         int uflow;
 330
 331         c = cip->ci_calls ? cip->ci_calls : 1;
 332         t = (cip->ci_utime + cip->ci_stime) / (double) AHZ;
 333         if (t < 0.01) {
 334                 t = 0.01;
 335                 uflow = 1;
 336         } else
 337                 uflow = 0;
 338
 339         printf("%8qu ", cip->ci_calls);
 340         if (cflag) {
 341                 if (cip != totalcip)
 342                         printf(" %4.2f%%  ",
 343                             cip->ci_calls / (double) totalcip->ci_calls);
 344                 else
 345                         printf(" %4s   ", "");
 346         }
 347
 348         if (jflag)
 349                 printf("%11.2fre ", cip->ci_etime / (double) (AHZ * c));
 350         else
 351                 printf("%11.2fre ", cip->ci_etime / (60.0 * AHZ));
 352         if (cflag) {
 353                 if (cip != totalcip)
 354                         printf(" %4.2f%%  ",
 355                             cip->ci_etime / (double) totalcip->ci_etime);
 356                 else
 357                         printf(" %4s   ", "");
 358         }
 359
 360         if (!lflag) {
 361                 if (jflag)
 362                         printf("%11.2fcp ", t / (double) cip->ci_calls);
 363                 else
 364                         printf("%11.2fcp ", t / 60.0);
 365                 if (cflag) {
 366                         if (cip != totalcip)
 367                                 printf(" %4.2f%%  ",
 368                                     (cip->ci_utime + cip->ci_stime) / (double)
 369                                     (totalcip->ci_utime + totalcip->ci_stime));
 370                         else
 371                                 printf(" %4s   ", "");
 372                 }
 373         } else {
 374                 if (jflag)
 375                         printf("%11.2fu ", cip->ci_utime / (double) (AHZ * c));
 376                 else
 377                         printf("%11.2fu ", cip->ci_utime / (60.0 * AHZ));
 378                 if (cflag) {
 379                         if (cip != totalcip)
 380                                 printf(" %4.2f%%  ", cip->ci_utime / (double) totalcip->ci_utime);
 381                         else
 382                                 printf(" %4s   ", "");
 383                 }
 384                 if (jflag)
 385                         printf("%11.2fs ", cip->ci_stime / (double) (AHZ * c));
 386                 else
 387                         printf("%11.2fs ", cip->ci_stime / (60.0 * AHZ));
 388                 if (cflag) {
 389                         if (cip != totalcip)
 390                                 printf(" %4.2f%%  ", cip->ci_stime / (double) totalcip->ci_stime);
 391                         else
 392                                 printf(" %4s   ", "");
 393                 }
 394         }
 395
 396         if (tflag)
 397                 if (!uflow)
 398                         printf("%8.2fre/cp ", cip->ci_etime / (double) (cip->ci_utime + cip->ci_stime));
 399                 else
 400                         printf("*ignore*      ");
 401
 402         if (Dflag)
 403                 printf("%10qutio ", cip->ci_io);
 404         else
 405                 printf("%8.0favio ", cip->ci_io / c);
 406
 407         if (Kflag)
 408                 printf("%10quk*sec ", cip->ci_mem);
 409         else
 410                 printf("%8.0fk ", cip->ci_mem / t);
 411
 412         printf("  %s\n", cip->ci_comm);
 413 }