1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <assert.h> 27 #include <sys/zfs_context.h> 28 #include <sys/avl.h> 29 #include <string.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <sys/spa.h> 33 #include <sys/fs/zfs.h> 34 #include <sys/refcount.h> 35 36 /* 37 * Routines needed by more than one client of libzpool. 38 */ 39 40 void 41 nicenum(uint64_t num, char *buf) 42 { 43 uint64_t n = num; 44 int index = 0; 45 char u; 46 47 while (n >= 1024) { 48 n = (n + (1024 / 2)) / 1024; /* Round up or down */ 49 index++; 50 } 51 52 u = " KMGTPE"[index]; 53 54 if (index == 0) { 55 (void) sprintf(buf, "%llu", (u_longlong_t)n); 56 } else if (n < 10 && (num & (num - 1)) != 0) { 57 (void) sprintf(buf, "%.2f%c", 58 (double)num / (1ULL << 10 * index), u); 59 } else if (n < 100 && (num & (num - 1)) != 0) { 60 (void) sprintf(buf, "%.1f%c", 61 (double)num / (1ULL << 10 * index), u); 62 } else { 63 (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u); 64 } 65 } 66 67 static void 68 show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent) 69 { 70 vdev_stat_t *vs; 71 vdev_stat_t v0 = { 0 }; 72 uint64_t sec; 73 uint64_t is_log = 0; 74 nvlist_t **child; 75 uint_t c, children; 76 char used[6], avail[6]; 77 char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6]; 78 char *prefix = ""; 79 80 if (indent == 0 && desc != NULL) { 81 (void) printf(" " 82 " capacity operations bandwidth ---- errors ----\n"); 83 (void) printf("description " 84 "used avail read write read write read write cksum\n"); 85 } 86 87 if (desc != NULL) { 88 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log); 89 90 if (is_log) 91 prefix = "log "; 92 93 if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, 94 (uint64_t **)&vs, &c) != 0) 95 vs = &v0; 96 97 sec = MAX(1, vs->vs_timestamp / NANOSEC); 98 99 nicenum(vs->vs_alloc, used); 100 nicenum(vs->vs_space - vs->vs_alloc, avail); 101 nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops); 102 nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops); 103 nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes); 104 nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes); 105 nicenum(vs->vs_read_errors, rerr); 106 nicenum(vs->vs_write_errors, werr); 107 nicenum(vs->vs_checksum_errors, cerr); 108 109 (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n", 110 indent, "", 111 prefix, 112 indent + strlen(prefix) - 25 - (vs->vs_space ? 0 : 12), 113 desc, 114 vs->vs_space ? 6 : 0, vs->vs_space ? used : "", 115 vs->vs_space ? 6 : 0, vs->vs_space ? avail : "", 116 rops, wops, rbytes, wbytes, rerr, werr, cerr); 117 } 118 119 if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0) 120 return; 121 122 for (c = 0; c < children; c++) { 123 nvlist_t *cnv = child[c]; 124 char *cname, *tname; 125 uint64_t np; 126 if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) && 127 nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname)) 128 cname = "<unknown>"; 129 tname = calloc(1, strlen(cname) + 2); 130 (void) strcpy(tname, cname); 131 if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0) 132 tname[strlen(tname)] = '0' + np; 133 show_vdev_stats(tname, ctype, cnv, indent + 2); 134 free(tname); 135 } 136 } 137 138 void 139 show_pool_stats(spa_t *spa) 140 { 141 nvlist_t *config, *nvroot; 142 char *name; 143 144 VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0); 145 146 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 147 &nvroot) == 0); 148 VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 149 &name) == 0); 150 151 show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0); 152 show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0); 153 show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0); 154 155 nvlist_free(config); 156 } 157