+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2017, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/time.h>
#include <time.h>
-#include <errno.h>
-#include <string.h>
-#include <fcntl.h>
#include <unistd.h>
-#include <stdlib.h>
-void usage(char *prog)
+static void usage(const char *prog)
+{
+ printf("usage: %s {-o [-k]|-m|-d|-l<tgt>} [-u[<unlinkfmt>]] "
+ "[-t seconds] filenamefmt [[start] count]\n", prog);
+ printf("\t-l\tlink files to existing <tgt> file\n"
+ "\t-m\tmknod regular files (don't create OST objects)\n"
+ "\t-o\topen+create files with path and printf format\n"
+ "\t-k\t keep files open until all files are opened\n"
+ "\t-u\tunlink file/dir (with optional <unlinkfmt>)\n");
+ printf("\t-d\tuse directories instead of regular files\n"
+ "\t-t\tstop creating files after <seconds> have elapsed\n");
+
+ exit(EXIT_FAILURE);
+}
+
+static char *get_file_name(const char *fmt, long n, int has_fmt_spec)
{
- printf("usage: %s {-o|-m} filenamefmt count\n", prog);
- printf(" %s {-o|-m} filenamefmt -seconds\n", prog);
- printf(" %s {-o|-m} filenamefmt start count\n", prog);
+ static char filename[4096];
+ int bytes;
+
+ bytes = has_fmt_spec ? snprintf(filename, 4095, fmt, n) :
+ snprintf(filename, 4095, "%s%ld", fmt, n);
+ if (bytes >= 4095) {
+ printf("file name too long\n");
+ exit(EXIT_FAILURE);
+ }
+ return filename;
+}
+
+double now(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
}
int main(int argc, char ** argv)
{
- int i, rc = 0, do_open;
- char format[4096], *fmt;
- char filename[4096];
- long start, last, end;
- long begin = 0, count;
-
- if (argc < 4 || argc > 5) {
- usage(argv[0]);
- return 1;
- }
-
- if (strcmp(argv[1], "-o") == 0) {
- do_open = 1;
- } else if (strcmp(argv[1], "-m") == 0) {
- do_open = 0;
- } else {
- usage(argv[0]);
- return 1;
- }
-
- if (strlen(argv[2]) > 4080) {
- printf("name too long\n");
- return 1;
- }
-
- start = last = time(0);
-
- if (argc == 4) {
- end = strtol(argv[3], NULL, 0);
- if (end > 0) {
- count = end;
- end = -1UL >> 1;
- } else {
- end = start - end;
- count = -1UL >> 1;
- }
+ bool do_open = false, do_keep = false, do_link = false;
+ bool do_unlink = false, do_mknod = false, do_mkdir = false;
+ char *filename, *progname;
+ char *fmt = NULL, *fmt_unlink = NULL, *tgt = NULL;
+ char *endp = NULL;
+ double start, last_t, end;
+ long begin = 0, count = ~0UL >> 1;
+ int has_fmt_spec = 0, unlink_has_fmt_spec = 0;
+ long i, total, last_i = 0;
+ int c, last_fd = -1, stderr_fd;
+ int rc = 0;
+
+ /* Handle the deprecated positional last argument "-seconds" */
+ if (argc > 1 && argv[argc - 1][0] == '-' &&
+ (end = strtol(argv[argc - 1] + 1, &endp, 0)) && *endp == '\0') {
+ fprintf(stderr, "warning: '-runtime' deprecated, "
+ "use '-t runtime' instead\n");
+ argv[--argc] = NULL;
} else {
- end = -1UL >> 1;
- begin = strtol(argv[3], NULL, 0);
- count = strtol(argv[4], NULL, 0);
+ /* Not '-number', let regular argument parsing handle it. */
+ end = ~0U >> 1;
+ }
+
+ if ((endp = strrchr(argv[0], '/')) != NULL)
+ progname = endp + 1;
+ else
+ progname = argv[0];
+
+ while ((c = getopt(argc, argv, "dl:kmor::t:u::")) != -1) {
+ switch (c) {
+ case 'd':
+ do_mkdir = true;
+ break;
+ case 'k':
+ do_keep = true;
+ break;
+ case 'l':
+ do_link = true;
+ tgt = optarg;
+ break;
+ case 'm':
+ do_mknod = true;
+ break;
+ case 'o':
+ do_open = true;
+ break;
+ case 't':
+ end = strtol(optarg, &endp, 0);
+ if (end <= 0.0 || *endp != '\0')
+ usage(progname);
+ break;
+ case 'r':
+ case 'u':
+ do_unlink = true;
+ fmt_unlink = optarg;
+ break;
+ case '?':
+ fprintf(stderr, "Unknown option '%c'\n", optopt);
+ usage(progname);
+ }
+ }
+
+ if (do_open + do_mkdir + do_link + do_mknod > 1 ||
+ do_open + do_mkdir + do_link + do_mknod + do_unlink == 0) {
+ fprintf(stderr, "error: only one of -o, -m, -l, -d\n");
+ usage(progname);
+ }
+
+ if (!do_open && do_keep) {
+ fprintf(stderr, "error: can only use -k with -o\n");
+ usage(progname);
+ }
+
+ switch (argc - optind) {
+ case 3:
+ begin = strtol(argv[argc - 2], NULL, 0);
+ case 2:
+ count = strtol(argv[argc - 1], NULL, 0);
+ case 1:
+ fmt = argv[optind];
+ break;
+ default:
+ usage(progname);
+ }
+
+ has_fmt_spec = strchr(fmt, '%') != NULL;
+ if (fmt_unlink != NULL)
+ unlink_has_fmt_spec = strchr(fmt_unlink, '%') != NULL;
+
+ for (i = 0, start = last_t = now(), end += start;
+ i < count && now() < end; i++, begin++) {
+ double tmp;
+
+ filename = get_file_name(fmt, begin, has_fmt_spec);
+ if (do_open) {
+ int fd = open(filename, O_CREAT|O_RDWR, 0644);
+ if (fd < 0) {
+ printf("open(%s) error: %s\n", filename,
+ strerror(errno));
+ rc = errno;
+ break;
+ }
+ if (!do_keep)
+ close(fd);
+ else if (fd > last_fd)
+ last_fd = fd;
+ } else if (do_link) {
+ rc = link(tgt, filename);
+ if (rc) {
+ printf("link(%s, %s) error: %s\n",
+ tgt, filename, strerror(errno));
+ rc = errno;
+ break;
+ }
+ } else if (do_mkdir) {
+ rc = mkdir(filename, 0755);
+ if (rc) {
+ printf("mkdir(%s) error: %s\n",
+ filename, strerror(errno));
+ rc = errno;
+ break;
+ }
+ } else if (do_mknod) {
+ rc = mknod(filename, S_IFREG | 0444, 0);
+ if (rc) {
+ printf("mknod(%s) error: %s\n",
+ filename, strerror(errno));
+ rc = errno;
+ break;
+ }
+ }
+ if (do_unlink) {
+ if (fmt_unlink != NULL)
+ filename = get_file_name(fmt_unlink, begin,
+ unlink_has_fmt_spec);
+
+ rc = do_mkdir ? rmdir(filename) : unlink(filename);
+ if (rc) {
+ printf("unlink(%s) error: %s\n",
+ filename, strerror(errno));
+ rc = errno;
+ break;
+ }
+ }
+
+ tmp = now();
+ if (tmp - last_t >= 10.0 ||
+ (tmp - last_t > 2.0 && (i % 10000) == 0)) {
+ printf(" - %s%s %ld (time %.2f total %.2f last %.2f)"
+ "\n",
+ do_open ? do_keep ? "open/keep" : "open/close" :
+ do_mkdir ? "mkdir" : do_link ? "link" :
+ do_mknod ? "create" : "",
+ do_unlink ? do_mkdir ? "/rmdir" : "/unlink" : "",
+ i, tmp, tmp - start,
+ (i - last_i) / (tmp - last_t));
+ last_t = tmp;
+ last_i = i;
+ }
}
+ last_t = now();
+ total = i;
+ printf("total: %ld %s%s in %.2f seconds: %.2f ops/second\n", total,
+ do_open ? do_keep ? "open/keep" : "open/close" :
+ do_mkdir ? "mkdir" : do_link ? "link" :
+ do_mknod ? "create" : "",
+ do_unlink ? do_mkdir ? "/rmdir" : "/unlink" : "",
+ last_t - start, ((double)total / (last_t - start)));
- if (strchr(argv[2], '%'))
- fmt = argv[2];
- else {
- sprintf(format, "%s%%d", argv[2]);
- fmt = format;
+ if (!do_keep)
+ return rc;
+
+ stderr_fd = fileno(stderr);
+ start = last_t;
+ /* Assume fd is allocated in order, doing extra closes is not harmful */
+ for (i = 0; i < total && last_fd > stderr_fd; i++, --last_fd) {
+ close(last_fd);
+
+ if ((i != 0 && (i % 10000) == 0) || now() - last_t >= 10.0) {
+ double tmp = now();
+
+ printf(" - closed %ld (time %.2f total %.2f last %.2f)"
+ "\n", i, tmp, tmp - start,
+ (i - last_i) / (tmp - last_t));
+ last_t = tmp;
+ last_i = i;
+ }
}
- for (i = 0; i < count && time(0) < end; i++, begin++) {
- sprintf(filename, fmt, begin);
- if (do_open) {
- int fd = open(filename, O_CREAT|O_RDWR, 0644);
- if (fd < 0) {
- printf("open(%s) error: %s\n", filename,
- strerror(errno));
- rc = errno;
- break;
- }
- close(fd);
- } else {
- rc = mknod(filename, S_IFREG| 0444, 0);
- if (rc) {
- printf("mknod(%s) error: %s\n",
- filename, strerror(errno));
- rc = errno;
- break;
- }
- }
- if ((i % 10000) == 0) {
- printf(" - created %d (time %ld ; total %ld ; last %ld)\n",
- i, time(0), time(0) - start, time(0) - last);
- last = time(0);
- }
- }
- printf("total: %d creates in %ld seconds: %f creates/second\n", i,
- time(0) - start, ((float)i / (time(0) - start)));
-
- return rc;
+ last_t = now();
+
+ printf("total: %ld close in %.2f seconds: %.2f close/second\n",
+ total, last_t - start, ((double)total / (last_t - start)));
+ return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff