diff options
Diffstat (limited to 'source4/cluster/ctdb/tests/ctdb_bench.c')
| -rw-r--r-- | source4/cluster/ctdb/tests/ctdb_bench.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/source4/cluster/ctdb/tests/ctdb_bench.c b/source4/cluster/ctdb/tests/ctdb_bench.c new file mode 100644 index 0000000000..77b7f15d35 --- /dev/null +++ b/source4/cluster/ctdb/tests/ctdb_bench.c @@ -0,0 +1,229 @@ +/* + simple ctdb 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 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 "lib/events/events.h" +#include "system/filesys.h" +#include "popt.h" +#include "cmdline.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_nodes; + +enum my_functions {FUNC_INCR=1, FUNC_FETCH=2}; + +/* + ctdb call function to increment an integer +*/ +static int incr_func(struct ctdb_call_info *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_info *call) +{ + call->reply_data = &call->record_data; + return 0; +} + + +static int msg_count; +static int msg_plus, msg_minus; + +/* + handler for messages in bench_ring() +*/ +static void ring_message_handler(struct ctdb_context *ctdb, uint64_t srvid, + TDB_DATA data, void *private_data) +{ + int incr = *(int *)data.dptr; + int *count = (int *)private_data; + int dest; + (*count)++; + dest = (ctdb_get_vnn(ctdb) + incr) % num_nodes; + ctdb_send_message(ctdb, dest, srvid, data); + if (incr == 1) { + msg_plus++; + } else { + msg_minus++; + } +} + +/* + benchmark sending messages in a ring around the nodes +*/ +static void bench_ring(struct ctdb_context *ctdb, struct event_context *ev) +{ + int vnn=ctdb_get_vnn(ctdb); + + if (vnn == 0) { + /* two messages are injected into the ring, moving + in opposite directions */ + int dest, incr; + TDB_DATA data; + + data.dptr = (uint8_t *)&incr; + data.dsize = sizeof(incr); + + incr = 1; + dest = (ctdb_get_vnn(ctdb) + incr) % num_nodes; + ctdb_send_message(ctdb, dest, 0, data); + + incr = -1; + dest = (ctdb_get_vnn(ctdb) + incr) % num_nodes; + ctdb_send_message(ctdb, dest, 0, data); + } + + start_timer(); + + while (end_timer() < timelimit) { + if (vnn == 0 && msg_count % 10000 == 0) { + printf("Ring: %.2f msgs/sec (+ve=%d -ve=%d)\r", + msg_count/end_timer(), msg_plus, msg_minus); + fflush(stdout); + } + event_loop_once(ev); + } + + printf("Ring: %.2f msgs/sec (+ve=%d -ve=%d)\n", + msg_count/end_timer(), msg_plus, msg_minus); +} + +/* + handler for reconfigure message +*/ +static void reconfigure_handler(struct ctdb_context *ctdb, uint64_t srvid, + TDB_DATA data, void *private_data) +{ + int *ready = (int *)private_data; + *ready = 1; +} + + +/* + main program +*/ +int main(int argc, const char *argv[]) +{ + struct ctdb_context *ctdb; + struct ctdb_db_context *ctdb_db; + + struct poptOption popt_options[] = { + POPT_AUTOHELP + POPT_CTDB_CMDLINE + { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" }, + { "num-records", 'r', POPT_ARG_INT, &num_records, 0, "num_records", "integer" }, + { NULL, 'n', POPT_ARG_INT, &num_nodes, 0, "num_nodes", "integer" }, + POPT_TABLEEND + }; + int opt; + const char **extra_argv; + int extra_argc = 0; + int ret; + poptContext pc; + struct event_context *ev; + int cluster_ready=0; + + 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++; + } + + ev = s4_event_context_init(NULL); + + /* initialise ctdb */ + ctdb = ctdb_cmdline_client(ev); + + ctdb_set_message_handler(ctdb, CTDB_SRVID_RECONFIGURE, reconfigure_handler, + &cluster_ready); + + /* attach to a specific database */ + ctdb_db = ctdb_attach(ctdb, "test.tdb"); + if (!ctdb_db) { + printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)); + exit(1); + } + + /* setup a ctdb call function */ + ret = ctdb_set_call(ctdb_db, incr_func, FUNC_INCR); + ret = ctdb_set_call(ctdb_db, fetch_func, FUNC_FETCH); + + if (ctdb_set_message_handler(ctdb, 0, ring_message_handler,&msg_count)) + goto error; + + printf("Waiting for cluster\n"); + while (1) { + uint32_t recmode=1; + ctdb_ctrl_getrecmode(ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode); + if (recmode == 0) break; + event_loop_once(ev); + } + + bench_ring(ctdb, ev); + +error: + return 0; +} |