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 1.3 2008/07/14 20:28:07 dillon Exp $ 35 */ 36 37 #include "hammer.h" 38 #include <math.h> 39 #include <sys/sysctl.h> 40 41 static void loaddelay(struct timespec *ts, const char *arg); 42 43 void 44 hammer_cmd_bstats(char **av, int ac) 45 { 46 int mibs[8][16]; 47 size_t lens[8]; 48 int64_t stats[8]; 49 int64_t copy[8]; 50 size_t size; 51 struct timespec delay = { 1, 0 }; 52 int count; 53 int i; 54 int r; 55 56 if (ac > 0) 57 loaddelay(&delay, av[0]); 58 lens[0] = 16; 59 lens[1] = 16; 60 lens[2] = 16; 61 lens[3] = 16; 62 lens[4] = 16; 63 lens[5] = 16; 64 r = 0; 65 66 r |= sysctlnametomib("vfs.hammer.stats_btree_elements", 67 mibs[0], &lens[0]); 68 r |= sysctlnametomib("vfs.hammer.stats_btree_iterations", 69 mibs[1], &lens[1]); 70 r |= sysctlnametomib("vfs.hammer.stats_btree_lookups", 71 mibs[2], &lens[2]); 72 r |= sysctlnametomib("vfs.hammer.stats_btree_inserts", 73 mibs[3], &lens[3]); 74 r |= sysctlnametomib("vfs.hammer.stats_btree_deletes", 75 mibs[4], &lens[4]); 76 r |= sysctlnametomib("vfs.hammer.stats_btree_splits", 77 mibs[5], &lens[5]); 78 if (r < 0) { 79 perror("sysctl: HAMMER stats not available:"); 80 exit(1); 81 } 82 83 for (count = 0; ; ++count) { 84 for (i = 0; i < 6; ++i) { 85 size = sizeof(stats[0]); 86 r = sysctl(mibs[i], lens[i], &stats[i], &size, NULL, 0); 87 if (r < 0) { 88 perror("sysctl"); 89 exit(1); 90 } 91 } 92 if (count) { 93 if ((count & 15) == 1) 94 printf(" elements iterations lookups inserts deletes splits\n"); 95 printf("%10lld %10lld %10lld %10lld %10lld %10lld\n", 96 stats[0] - copy[0], 97 stats[1] - copy[1], 98 stats[2] - copy[2], 99 stats[3] - copy[3], 100 stats[4] - copy[4], 101 stats[5] - copy[5]); 102 } 103 nanosleep(&delay, NULL); 104 bcopy(stats, copy, sizeof(stats)); 105 } 106 } 107 108 109 void 110 hammer_cmd_iostats(char **av, int ac) 111 { 112 int mibs[8][16]; 113 size_t lens[8]; 114 int64_t stats[8]; 115 int64_t copy[8]; 116 size_t size; 117 struct timespec delay = { 1, 0 }; 118 int count; 119 int i; 120 int r; 121 122 if (ac > 0) 123 loaddelay(&delay, av[0]); 124 lens[0] = 16; 125 lens[1] = 16; 126 lens[2] = 16; 127 lens[3] = 16; 128 lens[4] = 16; 129 lens[5] = 16; 130 lens[6] = 16; 131 lens[7] = 16; 132 r = 0; 133 134 r |= sysctlnametomib("vfs.hammer.stats_file_read", 135 mibs[0], &lens[0]); 136 r |= sysctlnametomib("vfs.hammer.stats_file_write", 137 mibs[1], &lens[1]); 138 r |= sysctlnametomib("vfs.hammer.stats_disk_read", 139 mibs[2], &lens[2]); 140 r |= sysctlnametomib("vfs.hammer.stats_disk_write", 141 mibs[3], &lens[3]); 142 r |= sysctlnametomib("vfs.hammer.stats_file_iopsr", 143 mibs[4], &lens[4]); 144 r |= sysctlnametomib("vfs.hammer.stats_file_iopsw", 145 mibs[5], &lens[5]); 146 r |= sysctlnametomib("vfs.hammer.stats_inode_flushes", 147 mibs[6], &lens[6]); 148 r |= sysctlnametomib("vfs.hammer.stats_commits", 149 mibs[7], &lens[7]); 150 if (r < 0) { 151 perror("sysctl: HAMMER stats not available"); 152 exit(1); 153 } 154 155 for (count = 0; ; ++count) { 156 for (i = 0; i <= 7; ++i) { 157 size = sizeof(stats[0]); 158 r = sysctl(mibs[i], lens[i], &stats[i], &size, NULL, 0); 159 if (r < 0) { 160 perror("sysctl"); 161 exit(1); 162 } 163 } 164 if (count) { 165 if ((count & 15) == 1) 166 printf(" file-rd file-wr dev-read dev-write inode_ops ino_flush commits\n"); 167 printf("%9lld %9lld %9lld %9lld %9lld %8lld %8lld\n", 168 stats[0] - copy[0], 169 stats[1] - copy[1], 170 stats[2] - copy[2], 171 stats[3] - copy[3], 172 stats[4] + stats[5] - copy[4] - copy[5], 173 stats[6] - copy[6], 174 stats[7] - copy[7]); 175 } 176 nanosleep(&delay, NULL); 177 bcopy(stats, copy, sizeof(stats)); 178 } 179 } 180 181 /* 182 * Convert a delay string (e.g. "0.1") into a timespec. 183 */ 184 static 185 void 186 loaddelay(struct timespec *ts, const char *arg) 187 { 188 double d; 189 190 d = strtod(arg, NULL); 191 if (d < 0.001) 192 d = 0.001; 193 ts->tv_sec = (int)d; 194 ts->tv_nsec = (int)(modf(d, &d) * 1000000000.0); 195 } 196 197