sbin/hammer/cmd_stats.c

   1 /*
   2  * Copyright (c) 2008 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sbin/hammer/cmd_stats.c,v 1.1 2008/06/17 04:03:38 dillon Exp $
  35  */
  36
  37 #include "hammer.h"
  38 #include <sys/sysctl.h>
  39
  40 void
  41 hammer_cmd_bstats(char **av, int ac)
  42 {
  43         int mibs[8][16];
  44         int lens[8];
  45         int64_t stats[8];
  46         int64_t copy[8];
  47         size_t size;
  48         int delay = 1;
  49         int count;
  50         int i;
  51         int r;
  52
  53         if (ac > 0)
  54                 delay = strtol(av[0], NULL, 0);
  55         lens[0] = 16;
  56         lens[1] = 16;
  57         lens[2] = 16;
  58         lens[3] = 16;
  59         lens[4] = 16;
  60         lens[5] = 16;
  61         r = 0;
  62
  63         r |= sysctlnametomib("vfs.hammer.stats_btree_elements",
  64                              mibs[0], &lens[0]);
  65         r |= sysctlnametomib("vfs.hammer.stats_btree_iterations",
  66                              mibs[1], &lens[1]);
  67         r |= sysctlnametomib("vfs.hammer.stats_btree_lookups",
  68                              mibs[2], &lens[2]);
  69         r |= sysctlnametomib("vfs.hammer.stats_btree_inserts",
  70                              mibs[3], &lens[3]);
  71         r |= sysctlnametomib("vfs.hammer.stats_btree_deletes",
  72                              mibs[4], &lens[4]);
  73         r |= sysctlnametomib("vfs.hammer.stats_btree_splits",
  74                              mibs[5], &lens[5]);
  75         if (r < 0) {
  76                 perror("sysctl: HAMMER stats not available:");
  77                 exit(1);
  78         }
  79
  80         for (count = 0; ; ++count) {
  81                 for (i = 0; i < 6; ++i) {
  82                         size = sizeof(stats[0]);
  83                         r = sysctl(mibs[i], lens[i], &stats[i], &size, NULL, 0);
  84                         if (r < 0) {
  85                                 perror("sysctl");
  86                                 exit(1);
  87                         }
  88                 }
  89                 if (count) {
  90                         if ((count & 15) == 1)
  91                                 printf("  elements iterations    lookups    inserts    deletes     splits\n");
  92                         printf("%10lld %10lld %10lld %10lld %10lld %10lld\n",
  93                                 stats[0] - copy[0],
  94                                 stats[1] - copy[1],
  95                                 stats[2] - copy[2],
  96                                 stats[3] - copy[3],
  97                                 stats[4] - copy[4],
  98                                 stats[5] - copy[5]);
  99                 }
 100                 sleep(delay);
 101                 bcopy(stats, copy, sizeof(stats));
 102         }
 103 }
 104
 105
 106 void
 107 hammer_cmd_iostats(char **av, int ac)
 108 {
 109         int mibs[8][16];
 110         int lens[8];
 111         int64_t stats[8];
 112         int64_t copy[8];
 113         size_t size;
 114         int delay = 1;
 115         int count;
 116         int i;
 117         int r;
 118
 119         if (ac > 0)
 120                 delay = strtol(av[0], NULL, 0);
 121         lens[0] = 16;
 122         lens[1] = 16;
 123         lens[2] = 16;
 124         lens[3] = 16;
 125         lens[4] = 16;
 126         lens[5] = 16;
 127         r = 0;
 128
 129         r |= sysctlnametomib("vfs.hammer.stats_read",
 130                              mibs[0], &lens[0]);
 131         r |= sysctlnametomib("vfs.hammer.stats_write",
 132                              mibs[1], &lens[1]);
 133         r |= sysctlnametomib("vfs.hammer.stats_rd_cached",
 134                              mibs[2], &lens[2]);
 135         r |= sysctlnametomib("vfs.hammer.stats_wr_cached",
 136                              mibs[3], &lens[3]);
 137         if (r < 0) {
 138                 perror("sysctl: HAMMER stats not available:");
 139                 exit(1);
 140         }
 141
 142         for (count = 0; ; ++count) {
 143                 for (i = 0; i < 4; ++i) {
 144                         size = sizeof(stats[0]);
 145                         r = sysctl(mibs[i], lens[i], &stats[i], &size, NULL, 0);
 146                         if (r < 0) {
 147                                 perror("sysctl");
 148                                 exit(1);
 149                         }
 150                 }
 151                 if (count) {
 152                         if ((count & 15) == 1)
 153                                 printf("     reads     writes  rd_cached  wr_cached\n");
 154                         printf("%10lld %10lld %10lld %10lld\n",
 155                                 stats[0] - copy[0],
 156                                 stats[1] - copy[1],
 157                                 stats[2] - copy[2],
 158                                 stats[3] - copy[3]);
 159                 }
 160                 sleep(delay);
 161                 bcopy(stats, copy, sizeof(stats));
 162         }
 163 }
 164
 165