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/*
Unix SMB/CIFS implementation.
locking benchmark
Copyright (C) Andrew Tridgell 2006
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "torture/torture.h"
#include "libcli/raw/libcliraw.h"
#include "system/time.h"
#include "system/filesys.h"
#include "libcli/libcli.h"
#include "torture/util.h"
#include "lib/events/events.h"
#include "lib/cmdline/popt_common.h"
#define CHECK_STATUS(status, correct) do { \
if (!NT_STATUS_EQUAL(status, correct)) { \
printf("(%s) Incorrect status %s - should be %s\n", \
__location__, nt_errstr(status), nt_errstr(correct)); \
goto failed; \
}} while (0)
#define BASEDIR "\\benchlock"
#define FNAME BASEDIR "\\lock.dat"
static int nprocs;
static int lock_failed;
struct benchlock_state {
struct smbcli_state *cli;
int fnum;
int offset;
int count;
union smb_lock io;
struct smb_lock_entry lock[2];
struct smbcli_request *req;
};
static void lock_completion(struct smbcli_request *);
/*
send the next lock request
*/
static void lock_send(struct benchlock_state *state)
{
state->io.lockx.in.file.fnum = state->fnum;
state->io.lockx.in.ulock_cnt = 1;
state->lock[0].pid = state->cli->session->pid;
state->lock[1].pid = state->cli->session->pid;
state->lock[0].offset = state->offset;
state->lock[1].offset = (state->offset+1)%nprocs;
state->req = smb_raw_lock_send(state->cli->tree, &state->io);
if (state->req == NULL) {
DEBUG(0,("Failed to setup lock\n"));
lock_failed++;
}
state->req->async.private = state;
state->req->async.fn = lock_completion;
state->offset = (state->offset+1)%nprocs;
}
/*
called when a lock completes
*/
static void lock_completion(struct smbcli_request *req)
{
struct benchlock_state *state = (struct benchlock_state *)req->async.private;
NTSTATUS status = smbcli_request_simple_recv(req);
state->req = NULL;
if (!NT_STATUS_IS_OK(status)) {
lock_failed++;
DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
} else {
state->count++;
lock_send(state);
}
}
/*
benchmark locking calls
*/
BOOL torture_bench_lock(struct torture_context *torture)
{
BOOL ret = True;
TALLOC_CTX *mem_ctx = talloc_new(torture);
int i;
int timelimit = torture_setting_int(torture, "timelimit", 10);
struct timeval tv;
struct event_context *ev = event_context_find(mem_ctx);
struct benchlock_state *state;
int total = 0, loops=0, minops=0;
NTSTATUS status;
nprocs = lp_parm_int(-1, "torture", "nprocs", 4);
state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
printf("Opening %d connections\n", nprocs);
for (i=0;i<nprocs;i++) {
if (!torture_open_connection_ev(&state[i].cli, i, ev)) {
return False;
}
talloc_steal(mem_ctx, state);
}
if (!torture_setup_dir(state[0].cli, BASEDIR)) {
goto failed;
}
for (i=0;i<nprocs;i++) {
state[i].fnum = smbcli_open(state[i].cli->tree,
FNAME,
O_RDWR|O_CREAT, DENY_NONE);
if (state[i].fnum == -1) {
printf("Failed to open %s on connection %d\n", FNAME, i);
goto failed;
}
state[i].io.lockx.level = RAW_LOCK_LOCKX;
state[i].io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
state[i].io.lockx.in.timeout = 100000;
state[i].io.lockx.in.ulock_cnt = 0;
state[i].io.lockx.in.lock_cnt = 1;
state[i].lock[0].count = 1;
state[i].lock[1].count = 1;
state[i].io.lockx.in.locks = &state[i].lock[0];
state[i].offset = i;
state[i].io.lockx.in.file.fnum = state[i].fnum;
state[i].lock[0].offset = state[i].offset;
state[i].lock[0].pid = state[i].cli->session->pid;
status = smb_raw_lock(state[i].cli->tree, &state[i].io);
CHECK_STATUS(status, NT_STATUS_OK);
}
for (i=0;i<nprocs;i++) {
lock_send(&state[i]);
}
tv = timeval_current();
printf("Running for %d seconds\n", timelimit);
while (timeval_elapsed(&tv) < timelimit) {
event_loop_once(ev);
if (lock_failed) {
DEBUG(0,("locking failed\n"));
goto failed;
}
if (loops++ % 10 != 0) continue;
total = 0;
for (i=0;i<nprocs;i++) {
total += state[i].count;
}
printf("%.2f ops/second\r", total/timeval_elapsed(&tv));
fflush(stdout);
}
printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
minops = state[0].count;
for (i=0;i<nprocs;i++) {
printf("[%d] %u ops\n", i, state[i].count);
if (state[i].count < minops) minops = state[i].count;
}
if (minops < 0.5*total/nprocs) {
printf("Failed: unbalanced locking\n");
goto failed;
}
for (i=0;i<nprocs;i++) {
talloc_free(state[i].req);
smb_raw_exit(state[i].cli->session);
}
smbcli_deltree(state[0].cli->tree, BASEDIR);
talloc_free(mem_ctx);
return ret;
failed:
for (i=0;i<nprocs;i++) {
talloc_free(state[i].req);
smb_raw_exit(state[i].cli->session);
}
smbcli_deltree(state[0].cli->tree, BASEDIR);
talloc_free(mem_ctx);
return False;
}
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