diff options
Diffstat (limited to 'usr/src/lib/libzpool/common/util.c')
| -rw-r--r-- | usr/src/lib/libzpool/common/util.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/usr/src/lib/libzpool/common/util.c b/usr/src/lib/libzpool/common/util.c new file mode 100644 index 0000000000..28a6704702 --- /dev/null +++ b/usr/src/lib/libzpool/common/util.c @@ -0,0 +1,135 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <assert.h> +#include <sys/zfs_context.h> +#include <sys/avl.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/spa.h> +#include <sys/fs/zfs.h> + +/* + * Routines needed by more than one client of libzpool. + */ + +void +nicenum(uint64_t num, char *buf) +{ + uint64_t n = num; + int index = 0; + char u; + + while (n >= 1024) { + n = (n + (1024 / 2)) / 1024; /* Round up or down */ + index++; + } + + u = " KMGTPE"[index]; + + if (index == 0) { + (void) sprintf(buf, "%llu", (u_longlong_t)n); + } else if (n < 10 && (num & (num - 1)) != 0) { + (void) sprintf(buf, "%.2f%c", + (double)num / (1ULL << 10 * index), u); + } else if (n < 100 && (num & (num - 1)) != 0) { + (void) sprintf(buf, "%.1f%c", + (double)num / (1ULL << 10 * index), u); + } else { + (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u); + } +} + +static void +show_vdev_stats(const char *desc, nvlist_t *nv, int indent) +{ + nvlist_t **child; + uint_t c, children; + vdev_stat_t *vs; + uint64_t sec; + char used[6], avail[6]; + char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6]; + + if (indent == 0) { + (void) printf(" " + " capacity operations bandwidth ---- errors ----\n"); + (void) printf("description " + "used avail read write read write read write cksum\n"); + } + + VERIFY(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, + (uint64_t **)&vs, &c) == 0); + + sec = MAX(1, vs->vs_timestamp / NANOSEC); + + nicenum(vs->vs_alloc, used); + nicenum(vs->vs_space - vs->vs_alloc, avail); + nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops); + nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops); + nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes); + nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes); + nicenum(vs->vs_read_errors, rerr); + nicenum(vs->vs_write_errors, werr); + nicenum(vs->vs_checksum_errors, cerr); + + (void) printf("%*s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n", + indent, "", + indent - 19 - (vs->vs_space ? 0 : 12), desc, + vs->vs_space ? 6 : 0, vs->vs_space ? used : "", + vs->vs_space ? 6 : 0, vs->vs_space ? avail : "", + rops, wops, rbytes, wbytes, rerr, werr, cerr); + + if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, + &child, &children) != 0) + return; + + for (c = 0; c < children; c++) { + nvlist_t *cnv = child[c]; + char *cname; + if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) && + nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname)) + cname = "<unknown>"; + show_vdev_stats(cname, cnv, indent + 2); + } +} + +void +show_pool_stats(spa_t *spa) +{ + nvlist_t *config = NULL; + nvlist_t *nvroot = NULL; + + spa_config_enter(spa, RW_READER); + VERIFY(spa_get_stats(spa_name(spa), &config) == 0); + VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, + &nvroot) == 0); + + show_vdev_stats(spa_name(spa), nvroot, 0); + spa_config_exit(spa); +} |