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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25 #include <assert.h>
26 #include <sys/zfs_context.h>
27 #include <sys/avl.h>
28 #include <string.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <sys/spa.h>
32 #include <sys/fs/zfs.h>
33 #include <sys/refcount.h>
34
35 /*
36 * Routines needed by more than one client of libzpool.
37 */
38
39 void
nicenum(uint64_t num,char * buf)40 nicenum(uint64_t num, char *buf)
41 {
42 uint64_t n = num;
43 int index = 0;
44 char u;
45
46 while (n >= 1024) {
47 n = (n + (1024 / 2)) / 1024; /* Round up or down */
48 index++;
49 }
50
51 u = " KMGTPE"[index];
52
53 if (index == 0) {
54 (void) sprintf(buf, "%llu", (u_longlong_t)n);
55 } else if (n < 10 && (num & (num - 1)) != 0) {
56 (void) sprintf(buf, "%.2f%c",
57 (double)num / (1ULL << 10 * index), u);
58 } else if (n < 100 && (num & (num - 1)) != 0) {
59 (void) sprintf(buf, "%.1f%c",
60 (double)num / (1ULL << 10 * index), u);
61 } else {
62 (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u);
63 }
64 }
65
66 static void
show_vdev_stats(const char * desc,const char * ctype,nvlist_t * nv,int indent)67 show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent)
68 {
69 vdev_stat_t *vs;
70 vdev_stat_t v0 = { 0 };
71 uint64_t sec;
72 uint64_t is_log = 0;
73 nvlist_t **child;
74 uint_t c, children;
75 char used[6], avail[6];
76 char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6];
77 char *prefix = "";
78
79 if (indent == 0 && desc != NULL) {
80 (void) printf(" "
81 " capacity operations bandwidth ---- errors ----\n");
82 (void) printf("description "
83 "used avail read write read write read write cksum\n");
84 }
85
86 if (desc != NULL) {
87 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
88
89 if (is_log)
90 prefix = "log ";
91
92 if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
93 (uint64_t **)&vs, &c) != 0)
94 vs = &v0;
95
96 sec = MAX(1, vs->vs_timestamp / NANOSEC);
97
98 nicenum(vs->vs_alloc, used);
99 nicenum(vs->vs_space - vs->vs_alloc, avail);
100 nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops);
101 nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops);
102 nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes);
103 nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes);
104 nicenum(vs->vs_read_errors, rerr);
105 nicenum(vs->vs_write_errors, werr);
106 nicenum(vs->vs_checksum_errors, cerr);
107
108 (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
109 indent, "",
110 prefix,
111 (int)(indent + strlen(prefix) - 25 - (vs->vs_space ? 0 : 12)),
112 desc,
113 vs->vs_space ? 6 : 0, vs->vs_space ? used : "",
114 vs->vs_space ? 6 : 0, vs->vs_space ? avail : "",
115 rops, wops, rbytes, wbytes, rerr, werr, cerr);
116 }
117
118 if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0)
119 return;
120
121 for (c = 0; c < children; c++) {
122 nvlist_t *cnv = child[c];
123 char *cname, *tname;
124 uint64_t np;
125 if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) &&
126 nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname))
127 cname = "<unknown>";
128 tname = calloc(1, strlen(cname) + 2);
129 (void) strcpy(tname, cname);
130 if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0)
131 tname[strlen(tname)] = '0' + np;
132 show_vdev_stats(tname, ctype, cnv, indent + 2);
133 free(tname);
134 }
135 }
136
137 void
show_pool_stats(spa_t * spa)138 show_pool_stats(spa_t *spa)
139 {
140 nvlist_t *config, *nvroot;
141 char *name;
142
143 VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0);
144
145 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
146 &nvroot) == 0);
147 VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
148 &name) == 0);
149
150 show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0);
151 show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0);
152 show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0);
153
154 nvlist_free(config);
155 }
156