1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 #include <sys/types.h>
49 static void usage(char *prog)
51 printf("usage: %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt count\n", prog);
52 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt ] -seconds\n", prog);
53 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt start count\n", prog);
57 static char *get_file_name(const char *fmt, long n, int has_fmt_spec)
59 static char filename[4096];
62 bytes = has_fmt_spec ? snprintf(filename, 4095, fmt, n) :
63 snprintf(filename, 4095, "%s%ld", fmt, n);
65 printf("file name too long\n");
74 gettimeofday(&tv, NULL);
75 return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
78 int main(int argc, char ** argv)
81 int rc = 0, do_open = 0, do_link = 0, do_mkdir = 0;
82 int do_unlink = 0, do_mknod = 0;
84 char *fmt = NULL, *fmt_unlink = NULL, *tgt = NULL;
86 long begin = 0, end = ~0UL >> 1, count = ~0UL >> 1;
87 int c, has_fmt_spec = 0, unlink_has_fmt_spec = 0;
89 /* Handle the last argument in form of "-seconds" */
90 if (argc > 1 && argv[argc - 1][0] == '-') {
94 end = strtol(argv[argc] + 1, &endp, 0);
95 if (end <= 0 || *endp != '\0')
97 end = end + time(NULL);
100 while ((c = getopt(argc, argv, "omdl:r:")) != -1) {
120 printf("Unknown option '%c'\n", optopt);
125 if (do_open + do_mkdir + do_link + do_mknod != 1 ||
129 switch (argc - optind) {
131 begin = strtol(argv[argc - 2], NULL, 0);
133 count = strtol(argv[argc - 1], NULL, 0);
134 if (end != ~0UL >> 1)
143 start = last = now();
145 has_fmt_spec = strchr(fmt, '%') != NULL;
147 unlink_has_fmt_spec = strchr(fmt_unlink, '%') != NULL;
149 for (i = 0; i < count && time(NULL) < end; i++, begin++) {
150 filename = get_file_name(fmt, begin, has_fmt_spec);
152 int fd = open(filename, O_CREAT|O_RDWR, 0644);
154 printf("open(%s) error: %s\n", filename,
160 } else if (do_link) {
161 rc = link(tgt, filename);
163 printf("link(%s, %s) error: %s\n",
164 tgt, filename, strerror(errno));
168 } else if (do_mkdir) {
169 rc = mkdir(filename, 0755);
171 printf("mkdir(%s) error: %s\n",
172 filename, strerror(errno));
177 rc = mknod(filename, S_IFREG| 0444, 0);
179 printf("mknod(%s) error: %s\n",
180 filename, strerror(errno));
186 filename = get_file_name(fmt_unlink, begin,
187 unlink_has_fmt_spec);
188 rc = do_mkdir ? rmdir(filename) : unlink(filename);
190 printf("unlink(%s) error: %s\n",
191 filename, strerror(errno));
197 if (i && (i % 10000) == 0) {
198 printf(" - created %ld (time %.2f total %.2f last %.2f)"
199 "\n", i, now(), now() - start, now() - last);
203 printf("total: %ld creates%s in %.2f seconds: %.2f creates/second\n", i,
204 do_unlink ? "/deletions" : "",
205 now() - start, ((double)i / (now() - start)));