--- /dev/null
+/*
+ SMB tree connection rate test
+
+ Copyright (C) 2006-2007 James Peach
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ 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 for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/libcli.h"
+#include "libcli/resolve/resolve.h"
+#include "torture/smbtorture.h"
+#include "lib/cmdline/popt_common.h"
+#include "param/param.h"
+
+#include "system/filesys.h"
+#include "system/shmem.h"
+
+#define TIME_LIMIT_SECS 30
+#define usec_to_sec(s) ((s) / 1000000)
+#define sec_to_usec(s) ((s) * 1000000)
+
+/* Map a shared memory buffer of at least nelem counters. */
+static void * map_count_buffer(unsigned nelem, size_t elemsz)
+{
+ void * buf;
+ size_t bufsz;
+ size_t pagesz = getpagesize();
+
+ bufsz = nelem * elemsz;
+ bufsz = (bufsz + pagesz) % pagesz; /* round up to pagesz */
+
+#ifdef MAP_ANON
+ /* BSD */
+ buf = mmap(NULL, bufsz, PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED,
+ -1 /* fd */, 0 /* offset */);
+#else
+ buf = mmap(NULL, bufsz, PROT_READ|PROT_WRITE, MAP_FILE|MAP_SHARED,
+ open("/dev/zero", O_RDWR), 0 /* offset */);
+#endif
+
+ if (buf == MAP_FAILED) {
+ printf("failed to map count buffer: %s\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ return buf;
+
+}
+
+static int fork_tcon_client(struct torture_context *tctx,
+ int *tcon_count, unsigned tcon_timelimit,
+ const char *host, const char *share)
+{
+ pid_t child;
+ struct smbcli_state *cli;
+ struct timeval end;
+ struct timeval now;
+ struct smbcli_options options;
+
+ lp_smbcli_options(tctx->lp_ctx, &options);
+
+ child = fork();
+ if (child == -1) {
+ printf("failed to fork child: %s\n,", strerror(errno));
+ return -1;
+ } else if (child != 0) {
+ /* Parent, just return. */
+ return 0;
+ }
+
+ /* Child. Just make as many connections as possible within the
+ * time limit. Don't bother synchronising the child start times
+ * because it's probably not work the effort, and a bit of startup
+ * jitter is probably a more realistic test.
+ */
+
+
+ end = timeval_current();
+ now = timeval_current();
+ end.tv_sec += tcon_timelimit;
+ *tcon_count = 0;
+
+ while (timeval_compare(&now, &end) == -1) {
+ NTSTATUS status;
+
+ status = smbcli_full_connection(NULL, &cli,
+ host, lp_smb_ports(tctx->lp_ctx), share,
+ NULL, cmdline_credentials,
+ lp_resolve_context(tctx->lp_ctx),
+ tctx->ev, &options);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ printf("failed to connect to //%s/%s: %s\n",
+ host, share, nt_errstr(status));
+ goto done;
+ }
+
+ smbcli_tdis(cli);
+
+ *tcon_count = *tcon_count + 1;
+ now = timeval_current();
+ }
+
+done:
+ exit(0);
+}
+
+static bool children_remain(void)
+{
+ /* Reap as many children as possible. */
+ for (;;) {
+ pid_t ret = waitpid(-1, NULL, WNOHANG);
+ if (ret == 0) {
+ /* no children ready */
+ return true;
+ }
+ if (ret == -1) {
+ /* no children left. maybe */
+ return errno == ECHILD ? false : true;
+ }
+ }
+
+ /* notreached */
+ return false;
+}
+
+static double rate_convert_secs(unsigned count,
+ const struct timeval *start, const struct timeval *end)
+{
+ return (double)count /
+ usec_to_sec((double)usec_time_diff(end, start));
+}
+
+/* Test the rate at which the server will accept connections. */
+bool torture_bench_treeconnect(struct torture_context *tctx)
+{
+ const char *host = torture_setting_string(tctx, "host", NULL);
+ const char *share = torture_setting_string(tctx, "share", NULL);
+
+ int timelimit = torture_setting_int(tctx, "timelimit",
+ TIME_LIMIT_SECS);
+ int nprocs = torture_setting_int(tctx, "nprocs", 4);
+
+ int *curr_counts = map_count_buffer(nprocs, sizeof(int));
+ int *last_counts = talloc_array(NULL, int, nprocs);
+
+ struct timeval now, last, start;
+ int i, delta;
+
+ torture_assert(tctx, nprocs > 0, "bad proc count");
+ torture_assert(tctx, timelimit > 0, "bad timelimit");
+ torture_assert(tctx, curr_counts, "allocation failure");
+ torture_assert(tctx, last_counts, "allocation failure");
+
+ start = last = timeval_current();
+ for (i = 0; i < nprocs; ++i) {
+ fork_tcon_client(tctx, &curr_counts[i], timelimit, host, share);
+ }
+
+ while (children_remain()) {
+
+ sleep(1);
+ now = timeval_current();
+
+ for (i = 0, delta = 0; i < nprocs; ++i) {
+ delta += curr_counts[i] - last_counts[i];
+ }
+
+ printf("%u connections/sec\n",
+ (unsigned)rate_convert_secs(delta, &last, &now));
+
+ memcpy(last_counts, curr_counts, nprocs * sizeof(int));
+ last = timeval_current();
+ }
+
+ now = timeval_current();
+
+ for (i = 0, delta = 0; i < nprocs; ++i) {
+ delta += curr_counts[i];
+ }
+
+ printf("TOTAL: %u connections/sec over %u secs\n",
+ (unsigned)rate_convert_secs(delta, &start, &now),
+ timelimit);
+ return true;
+}
+
+/* vim: set sts=8 sw=8 : */
git.samba.org / amitay / samba.git / commitdiff