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/*
simple ctdb benchmark
Copyright (C) Andrew Tridgell 2006
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "includes.h"
#include "lib/events/events.h"
#include "system/filesys.h"
#include "popt.h"
#include <sys/time.h>
#include <time.h>
static struct timeval tp1,tp2;
static void start_timer(void)
{
gettimeofday(&tp1,NULL);
}
static double end_timer(void)
{
gettimeofday(&tp2,NULL);
return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
(tp1.tv_sec + (tp1.tv_usec*1.0e-6));
}
static int timelimit = 10;
static int num_records = 10;
static int num_repeats = 100;
enum my_functions {FUNC_INCR=1, FUNC_FETCH=2};
/*
ctdb call function to increment an integer
*/
static int incr_func(struct ctdb_call *call)
{
if (call->record_data.dsize == 0) {
call->new_data = talloc(call, TDB_DATA);
if (call->new_data == NULL) {
return CTDB_ERR_NOMEM;
}
call->new_data->dptr = talloc_size(call, 4);
call->new_data->dsize = 4;
*(uint32_t *)call->new_data->dptr = 0;
} else {
call->new_data = &call->record_data;
}
(*(uint32_t *)call->new_data->dptr)++;
return 0;
}
/*
ctdb call function to fetch a record
*/
static int fetch_func(struct ctdb_call *call)
{
call->reply_data = &call->record_data;
return 0;
}
/*
benchmark incrementing an integer
*/
static void bench_incr(struct ctdb_context *ctdb)
{
TDB_DATA key, data;
int loops=0;
int ret, i;
start_timer();
while (1) {
uint32_t v = loops % num_records;
key.dptr = &v;
key.dsize = 4;
for (i=0;i<num_repeats;i++) {
ret = ctdb_call(ctdb, key, FUNC_INCR, NULL, NULL);
if (ret != 0) {
printf("incr call failed - %s\n", ctdb_errstr(ctdb));
return;
}
}
if (num_repeats * (++loops) % 10000 == 0) {
if (end_timer() > timelimit) break;
printf("Incr: %.2f ops/sec\r", num_repeats*loops/end_timer());
fflush(stdout);
}
}
ret = ctdb_call(ctdb, key, FUNC_FETCH, NULL, &data);
if (ret == -1) {
printf("ctdb_call FUNC_FETCH failed - %s\n", ctdb_errstr(ctdb));
return;
}
printf("Incr: %.2f ops/sec (loops=%d val=%d)\n",
num_repeats*loops/end_timer(), loops, *(uint32_t *)data.dptr);
}
/*
main program
*/
int main(int argc, const char *argv[])
{
struct ctdb_context *ctdb;
const char *nlist = NULL;
const char *transport = "tcp";
const char *myaddress = NULL;
int self_connect=0;
struct poptOption popt_options[] = {
POPT_AUTOHELP
{ "nlist", 0, POPT_ARG_STRING, &nlist, 0, "node list file", "filename" },
{ "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" },
{ "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL },
{ "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" },
{ "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
{ "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" },
POPT_TABLEEND
};
int opt;
const char **extra_argv;
int extra_argc = 0;
int ret;
poptContext pc;
struct event_context *ev;
pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "Invalid option %s: %s\n",
poptBadOption(pc, 0), poptStrerror(opt));
exit(1);
}
}
/* setup the remaining options for the main program to use */
extra_argv = poptGetArgs(pc);
if (extra_argv) {
extra_argv++;
while (extra_argv[extra_argc]) extra_argc++;
}
if (nlist == NULL || myaddress == NULL) {
printf("You must provide a node list with --nlist and an address with --listen\n");
exit(1);
}
ev = event_context_init(NULL);
/* initialise ctdb */
ctdb = ctdb_init(ev);
if (ctdb == NULL) {
printf("Failed to init ctdb\n");
exit(1);
}
if (self_connect) {
ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT);
}
ret = ctdb_set_transport(ctdb, transport);
if (ret == -1) {
printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* tell ctdb what address to listen on */
ret = ctdb_set_address(ctdb, myaddress);
if (ret == -1) {
printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* tell ctdb what nodes are available */
ret = ctdb_set_nlist(ctdb, nlist);
if (ret == -1) {
printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* setup a ctdb call function */
ret = ctdb_set_call(ctdb, incr_func, FUNC_INCR);
ret = ctdb_set_call(ctdb, fetch_func, FUNC_FETCH);
/* attach to a specific database */
ret = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666);
if (ret == -1) {
printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* start the protocol running */
ret = ctdb_start(ctdb);
/* wait until all nodes are connected (should not be needed
outside of test code) */
ctdb_connect_wait(ctdb);
bench_incr(ctdb);
/* go into a wait loop to allow other nodes to complete */
ctdb_wait_loop(ctdb);
/* shut it down */
talloc_free(ctdb);
return 0;
}
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