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) 2002, 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.
36 #include <sys/types.h>
47 static void usage(char *prog)
49 printf("usage: %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt count\n", prog);
50 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt ] -seconds\n", prog);
51 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt start count\n", prog);
55 static char *get_file_name(const char *fmt, long n, int has_fmt_spec)
57 static char filename[4096];
60 bytes = has_fmt_spec ? snprintf(filename, 4095, fmt, n) :
61 snprintf(filename, 4095, "%s%ld", fmt, n);
63 printf("file name too long\n");
72 gettimeofday(&tv, NULL);
73 return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
76 int main(int argc, char ** argv)
79 int rc = 0, do_open = 0, do_link = 0, do_mkdir = 0;
80 int do_unlink = 0, do_mknod = 0;
82 char *fmt = NULL, *fmt_unlink = NULL, *tgt = NULL;
84 long begin = 0, end = ~0UL >> 1, count = ~0UL >> 1;
85 int c, has_fmt_spec = 0, unlink_has_fmt_spec = 0;
87 /* Handle the last argument in form of "-seconds" */
88 if (argc > 1 && argv[argc - 1][0] == '-') {
92 end = strtol(argv[argc] + 1, &endp, 0);
93 if (end <= 0 || *endp != '\0')
95 end = end + time(NULL);
98 while ((c = getopt(argc, argv, "omdl:r:")) != -1) {
118 printf("Unknown option '%c'\n", optopt);
123 if (do_open + do_mkdir + do_link + do_mknod != 1 ||
127 switch (argc - optind) {
129 begin = strtol(argv[argc - 2], NULL, 0);
131 count = strtol(argv[argc - 1], NULL, 0);
132 if (end != ~0UL >> 1)
141 start = last = now();
143 has_fmt_spec = strchr(fmt, '%') != NULL;
145 unlink_has_fmt_spec = strchr(fmt_unlink, '%') != NULL;
147 for (i = 0; i < count && time(NULL) < end; i++, begin++) {
148 filename = get_file_name(fmt, begin, has_fmt_spec);
150 int fd = open(filename, O_CREAT|O_RDWR, 0644);
152 printf("open(%s) error: %s\n", filename,
158 } else if (do_link) {
159 rc = link(tgt, filename);
161 printf("link(%s, %s) error: %s\n",
162 tgt, filename, strerror(errno));
166 } else if (do_mkdir) {
167 rc = mkdir(filename, 0755);
169 printf("mkdir(%s) error: %s\n",
170 filename, strerror(errno));
175 rc = mknod(filename, S_IFREG| 0444, 0);
177 printf("mknod(%s) error: %s\n",
178 filename, strerror(errno));
184 filename = get_file_name(fmt_unlink, begin,
185 unlink_has_fmt_spec);
186 rc = do_mkdir ? rmdir(filename) : unlink(filename);
188 printf("unlink(%s) error: %s\n",
189 filename, strerror(errno));
195 if (i && (i % 10000) == 0) {
196 printf(" - created %ld (time %.2f total %.2f last %.2f)"
197 "\n", i, now(), now() - start, now() - last);
201 printf("total: %ld creates%s in %.2f seconds: %.2f creates/second\n", i,
202 do_unlink ? "/deletions" : "",
203 now() - start, ((double)i / (now() - start)));