diff options
Diffstat (limited to 'source4/torture/raw/tconrate.c')
| -rw-r--r-- | source4/torture/raw/tconrate.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/source4/torture/raw/tconrate.c b/source4/torture/raw/tconrate.c new file mode 100644 index 0000000000..6f0ba0d617 --- /dev/null +++ b/source4/torture/raw/tconrate.c @@ -0,0 +1,201 @@ +/* + 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 : */ |