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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
27 * This file is part of Lustre, http://www.lustre.org/
28 * Lustre is a trademark of Sun Microsystems, Inc.
32 #include <sys/types.h>
43 static void usage(char *prog)
45 printf("usage: %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt count\n", prog);
46 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt ] -seconds\n", prog);
47 printf(" %s {-o|-m|-d|-l<tgt>} [-r altpath ] filenamefmt start count\n", prog);
51 static char *get_file_name(const char *fmt, long n, int has_fmt_spec)
53 static char filename[4096];
56 bytes = has_fmt_spec ? snprintf(filename, 4095, fmt, n) :
57 snprintf(filename, 4095, "%s%ld", fmt, n);
59 printf("file name too long\n");
68 gettimeofday(&tv, NULL);
69 return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
72 int main(int argc, char ** argv)
75 int rc = 0, do_open = 0, do_link = 0, do_mkdir = 0;
76 int do_unlink = 0, do_mknod = 0;
78 char *fmt = NULL, *fmt_unlink = NULL, *tgt = NULL;
80 long begin = 0, end = ~0UL >> 1, count = ~0UL >> 1;
81 int c, has_fmt_spec = 0, unlink_has_fmt_spec = 0;
83 /* Handle the last argument in form of "-seconds" */
84 if (argc > 1 && argv[argc - 1][0] == '-') {
88 end = strtol(argv[argc] + 1, &endp, 0);
89 if (end <= 0 || *endp != '\0')
91 end = end + time(NULL);
94 while ((c = getopt(argc, argv, "omdl:r:")) != -1) {
114 printf("Unknown option '%c'\n", optopt);
119 if (do_open + do_mkdir + do_link + do_mknod != 1 ||
123 switch (argc - optind) {
125 begin = strtol(argv[argc - 2], NULL, 0);
127 count = strtol(argv[argc - 1], NULL, 0);
128 if (end != ~0UL >> 1)
137 start = last = now();
139 has_fmt_spec = strchr(fmt, '%') != NULL;
141 unlink_has_fmt_spec = strchr(fmt_unlink, '%') != NULL;
143 for (i = 0; i < count && time(NULL) < end; i++, begin++) {
144 filename = get_file_name(fmt, begin, has_fmt_spec);
146 int fd = open(filename, O_CREAT|O_RDWR, 0644);
148 printf("open(%s) error: %s\n", filename,
154 } else if (do_link) {
155 rc = link(tgt, filename);
157 printf("link(%s, %s) error: %s\n",
158 tgt, filename, strerror(errno));
162 } else if (do_mkdir) {
163 rc = mkdir(filename, 0755);
165 printf("mkdir(%s) error: %s\n",
166 filename, strerror(errno));
171 rc = mknod(filename, S_IFREG| 0444, 0);
173 printf("mknod(%s) error: %s\n",
174 filename, strerror(errno));
180 filename = get_file_name(fmt_unlink, begin,
181 unlink_has_fmt_spec);
182 rc = do_mkdir ? rmdir(filename) : unlink(filename);
184 printf("unlink(%s) error: %s\n",
185 filename, strerror(errno));
191 if (i && (i % 10000) == 0) {
192 printf(" - created %ld (time %.2f total %.2f last %.2f)"
193 "\n", i, now(), now() - start, now() - last);
197 printf("total: %ld creates%s in %.2f seconds: %.2f creates/second\n", i,
198 do_unlink ? "/deletions" : "",
199 now() - start, ((double)i / (now() - start)));