4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
37 #include <sys/types.h>
46 #include <sys/ioctl.h>
48 #include <liblustre.h>
49 #include <lustre_lib.h>
52 struct option longopts[] = {
54 {"lookup", 0, 0, 'l'},
55 {"random", 0, 0, 'r'},
59 char *shortopts = "ehlr:s0123456789";
61 static int usage(char *prog, FILE *out)
64 "Usage: %s [-r rand_seed] {-s|-e|-l} filenamebase total_files iterations\n"
66 "-s : regular stat() calls\n"
67 "-e : open then GET_EA ioctl\n"
68 "-l : lookup ioctl only\n", prog);
73 #define LONG_MAX (1 << ((8 * sizeof(long)) - 1))
76 int main(int argc, char ** argv)
78 long i, count, iter = LONG_MAX, mode = 0, offset;
79 long int start, length = LONG_MAX, last;
80 char parent[4096], *t;
81 char *prog = argv[0], *base;
85 while ((rc = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
89 seed = strtoul(optarg, &e, 0);
91 fprintf(stderr, "bad -r option %s\n", optarg);
110 if (length == LONG_MAX)
113 length = length * 10 + (rc - '0');
122 if (optind + 2 + (length == LONG_MAX) != argc) {
123 fprintf(stderr, "missing filenamebase, total_files, or iterations\n");
128 if (strlen(base) > 4080) {
129 fprintf(stderr, "filenamebase too long\n");
134 int f = open("/dev/urandom", O_RDONLY);
136 if (f < 0 || read(f, &seed, sizeof(seed)) < sizeof(seed))
142 printf("using seed %u\n", seed);
145 count = strtoul(argv[optind + 1], NULL, 0);
146 if (length == LONG_MAX) {
147 iter = strtoul(argv[optind + 2], NULL, 0);
148 printf("running for %lu iterations\n", iter);
150 printf("running for %lu seconds\n", length);
152 start = last = time(0);
154 t = strrchr(base, '/');
159 strncpy(parent, base, t - base);
160 offset = t - base + 1;
164 fd = open(parent, O_RDONLY);
166 printf("open(%s) error: %s\n", parent,
172 for (i = 0; i < iter && time(0) - start < length; i++) {
176 tmp = random() % count;
177 sprintf(filename, "%s%d", base, tmp);
181 fd = open(filename, O_RDWR|O_LARGEFILE);
183 printf("open(%s) error: %s\n", filename,
187 rc = ioctl(fd, LDISKFS_IOC_GETEA, NULL);
189 printf("ioctl(%s) error: %s\n", filename,
196 } else if (mode == 's') {
199 rc = stat(filename, &buf);
201 printf("stat(%s) error: %s\n", filename,
205 } else if (mode == 'l') {
206 struct obd_ioctl_data data;
209 int max = sizeof(rawbuf);
211 memset(&data, 0, sizeof(data));
212 data.ioc_version = OBD_IOCTL_VERSION;
213 data.ioc_len = sizeof(data);
215 data.ioc_inlbuf1 = filename + offset;
217 data.ioc_inlbuf1 = filename;
218 data.ioc_inllen1 = strlen(data.ioc_inlbuf1) + 1;
220 if (obd_ioctl_pack(&data, &buf, max)) {
221 printf("ioctl_pack failed.\n");
225 rc = ioctl(fd, IOC_MDC_LOOKUP, buf);
227 printf("ioctl(%s) error: %s\n", filename,
232 if ((i % 10000) == 0) {
233 printf(" - stat %lu (time %ld ; total %ld ; last %ld)\n",
234 i, time(0), time(0) - start, time(0) - last);
242 printf("total: %lu stats in %ld seconds: %f stats/second\n", i,
243 time(0) - start, ((float)i / (time(0) - start)));