mirror of
https://git.postgresql.org/git/postgresql.git
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738 lines
19 KiB
C
738 lines
19 KiB
C
/*
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* $Header: /cvsroot/pgsql/contrib/pgbench/pgbench.c,v 1.1 2000/01/15 12:38:09 ishii Exp $
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*
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* pgbench: a simple TPC-B like benchmark program for PostgreSQL
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* written by Tatsuo Ishii
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*
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* Copyright (c) 2000 Tatsuo Ishii
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that the above copyright notice appear in all
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* copies and that both that copyright notice and this permission
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* notice appear in supporting documentation, and that the name of the
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* author not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. The author makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*/
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#include "config.h"
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#include <stdio.h>
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#include "postgres.h"
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#include "libpq-fe.h"
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#include <errno.h>
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#ifdef WIN32
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#include "win32.h"
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#else
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#include <sys/time.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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/* for getrlimit */
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#include <sys/resource.h>
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#endif /* WIN32 */
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/********************************************************************
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* some configurable parameters */
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#define MAXCLIENTS 1024 /* max number of clients allowed */
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int nclients = 1; /* default number of simulated clients */
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int nxacts = 10; /* default number of transactions per clients */
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/*
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* scaling factor. for example, tps = 10 will make 1000000 tuples of
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* accounts table.
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*/
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int tps = 1;
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/*
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* end of configurable parameters
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*********************************************************************/
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#define nbranches 1
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#define ntellers 10
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#define naccounts 100000
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int remains; /* number of remained clients */
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typedef struct {
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PGconn *con; /* connection handle to DB */
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int state; /* state No. */
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int cnt; /* xacts count */
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int ecnt; /* error count */
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int listen; /* none 0 indicates that an async query has been sent */
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int aid; /* account id for this transaction */
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int bid; /* branch id for this transaction */
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int tid; /* teller id for this transaction */
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int delta;
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int abalance;
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} CState;
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static void usage() {
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fprintf(stderr,"usage: pgbench [-h hostname][-p port][-c nclients][-t ntransactions][-s scaling_factor][-n][-v][-S][-d][dbname]\n");
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fprintf(stderr,"(initialize mode): pgbench -i [-h hostname][-p port][-s scaling_factor][-d][dbname]\n");
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}
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/* random number generator */
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static int getrand(int min, int max) {
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return(min+(int)(max*1.0*rand()/(RAND_MAX+1.0)));
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}
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/* throw away response from backend */
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static void discard_response(CState *state) {
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PGresult *res;
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do {
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res = PQgetResult(state->con);
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if (res)
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PQclear(res);
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} while(res);
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}
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static int check(CState *state, PGresult *res, int n, int good)
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{
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CState *st = &state[n];
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if (res && PQresultStatus(res) != good) {
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fprintf(stderr,"Client %d aborted in state %d: %s",n,st->state,PQerrorMessage(st->con));
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remains--; /* I've aborted */
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PQfinish(st->con);
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st->con = NULL;
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return(-1);
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}
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return(0);
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}
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/* process a transaction */
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static void doOne(CState *state, int n, int debug) {
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char sql[256];
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PGresult *res;
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CState *st = &state[n];
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if (st->listen) { /* are we receiver? */
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if (debug) {
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fprintf(stderr,"client %d receiving\n",n);
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}
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while (PQisBusy(st->con) == TRUE) {
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if (!PQconsumeInput(st->con)) { /* there's something wrong */
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fprintf(stderr, "Client %d aborted in state %d. Probably the backend died while processing.\n",n, st->state);
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remains--; /* I've aborted */
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PQfinish(st->con);
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st->con = NULL;
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return;
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}
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}
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switch (st->state) {
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case 0: /* response to "begin" */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 1: /* response to "update accounts..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 2: /* response to "select abalance ..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_TUPLES_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 3: /* response to "update tellers ..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 4: /* response to "update branches ..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 5: /* response to "insert into history ..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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break;
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case 6: /* response to "end" */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_COMMAND_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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if (++st->cnt >= nxacts) {
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remains--; /* I've done */
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PQfinish(st->con);
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st->con = NULL;
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return;
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}
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break;
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}
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/* increment state counter */
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st->state++;
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if (st->state > 6) {
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st->state = 0;
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}
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}
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switch (st->state) {
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case 0: /* about to start */
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strcpy(sql,"begin");
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st->aid = getrand(1,naccounts*tps);
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st->bid = getrand(1,nbranches*tps);
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st->tid = getrand(1,ntellers*tps);
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st->delta = getrand(1,1000);
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break;
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case 1:
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sprintf(sql,"update accounts set abalance = abalance + %d where aid = %d\n",st->delta,st->aid);
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break;
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case 2:
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sprintf(sql,"select abalance from accounts where aid = %d",st->aid);
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break;
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case 3:
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sprintf(sql,"update tellers set tbalance = tbalance + %d where tid = %d\n",
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st->delta,st->tid);
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break;
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case 4:
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sprintf(sql,"update branches set bbalance = bbalance + %d where bid = %d",st->delta,st->bid);
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break;
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case 5:
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sprintf(sql,"insert into history(tid,bid,aid,delta,time) values(%d,%d,%d,%d,'now')",
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st->tid,st->bid,st->aid,st->delta);
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break;
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case 6:
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strcpy(sql,"end");
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break;
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}
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if (debug) {
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fprintf(stderr,"client %d sending %s\n",n,sql);
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}
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if (PQsendQuery(st->con, sql) == 0) {
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if (debug) {
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fprintf(stderr, "PQsendQuery(%s)failed\n",sql);
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}
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st->ecnt++;
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} else {
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st->listen++; /* flags that should be listned */
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}
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}
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/* process a select only transaction */
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static void doSelectOnly(CState *state, int n, int debug) {
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char sql[256];
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PGresult *res;
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CState *st = &state[n];
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if (st->listen) { /* are we receiver? */
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if (debug) {
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fprintf(stderr,"client %d receiving\n",n);
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}
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while (PQisBusy(st->con) == TRUE) {
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if (!PQconsumeInput(st->con)) { /* there's something wrong */
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fprintf(stderr, "Client %d aborted in state %d. Probably the backend died while processing.\n",n, st->state);
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remains--; /* I've aborted */
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PQfinish(st->con);
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st->con = NULL;
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return;
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}
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}
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switch (st->state) {
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case 0: /* response to "select abalance ..." */
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res = PQgetResult(st->con);
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if (check(state, res, n, PGRES_TUPLES_OK)) {
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return;
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}
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PQclear(res);
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discard_response(st);
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if (++st->cnt >= nxacts) {
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remains--; /* I've done */
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PQfinish(st->con);
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st->con = NULL;
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return;
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}
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break;
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}
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/* increment state counter */
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st->state++;
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if (st->state > 0) {
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st->state = 0;
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}
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}
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switch (st->state) {
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case 0:
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st->aid = getrand(1,naccounts*tps);
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sprintf(sql,"select abalance from accounts where aid = %d",st->aid);
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break;
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}
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if (debug) {
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fprintf(stderr,"client %d sending %s\n",n,sql);
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}
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if (PQsendQuery(st->con, sql) == 0) {
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if (debug) {
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fprintf(stderr, "PQsendQuery(%s)failed\n",sql);
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}
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st->ecnt++;
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} else {
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st->listen++; /* flags that should be listned */
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}
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}
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/* discard connections */
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static void disconnect_all(CState *state) {
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int i;
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for (i=0;i<nclients;i++) {
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if (state[i].con) {
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PQfinish(state[i].con);
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}
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}
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}
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/* create tables and setup data */
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static void init(char *pghost, char *pgport,char *dbName) {
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PGconn *con;
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PGresult *res;
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static char *DDLs[] = {
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"drop table branches",
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"create table branches(bid int, primary key(bid),bbalance int,filler char(88))",
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"drop table tellers",
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"create table tellers(tid int, primary key(tid),bid int,tbalance int,filler char(84))",
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"drop table accounts",
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"create table accounts(aid int,primary key(aid),bid int,abalance int,filler char(84))",
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"drop table history",
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"create table history(tid int,bid int,aid int,delta int,time timestamp,filler char(22))"};
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char sql[256];
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int i;
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con = PQsetdb(pghost, pgport, NULL, NULL, dbName);
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if (PQstatus(con) == CONNECTION_BAD) {
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fprintf(stderr, "Connection to database '%s' on %s failed.\n", dbName,pghost);
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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for (i=0;i<(sizeof(DDLs)/sizeof(char *));i++) {
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res = PQexec(con,DDLs[i]);
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if (strncmp(DDLs[i],"drop",4) && PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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PQclear(res);
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}
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res = PQexec(con,"begin");
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if (PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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for(i = 0; i < nbranches * tps; i++) {
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sprintf(sql,"insert into branches(bid,bbalance) values(%d,0)",i+1);
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res = PQexec(con,sql);
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if (PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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PQclear(res);
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}
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for(i = 0; i < ntellers * tps; i++) {
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sprintf(sql,"insert into tellers(tid,bid,tbalance) values (%d,%d,0)"
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,i+1,i/ntellers+1);
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res = PQexec(con,sql);
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if (PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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PQclear(res);
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}
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res = PQexec(con,"copy accounts from stdin");
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if (PQresultStatus(res) != PGRES_COPY_IN) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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PQclear(res);
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fprintf(stderr,"creating tables...\n");
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for(i = 0; i < naccounts*tps; i++) {
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int j = i + 1;
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sprintf(sql,"%d\t%d\t%d\t\n",i+1,(i+1)/naccounts,0);
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if (PQputline(con,sql)) {
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fprintf(stderr,"PQputline failed\n");
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exit(1);
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}
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if (j % 10000 == 0) {
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fprintf(stderr,"%d tuples done.\n",j);
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}
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}
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if (PQputline(con,"\\.\n")) {
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fprintf(stderr,"very last PQputline failed\n");
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exit(1);
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}
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if (PQendcopy(con)) {
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fprintf(stderr,"PQendcopy failed\n");
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exit(1);
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}
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res = PQexec(con,"end");
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if (PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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/* vacuum */
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fprintf(stderr,"vacuum...");
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res = PQexec(con,"vacuum analyze");
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if (PQresultStatus(res) != PGRES_COMMAND_OK) {
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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fprintf(stderr,"done.\n");
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PQfinish(con);
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}
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/* print out results */
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static void printResults(
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int ttype, CState *state,
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struct timeval *tv1,struct timeval *tv2,
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struct timeval *tv3) {
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double t1,t2;
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int i;
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int normal_xacts = 0;
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for (i=0;i<nclients;i++) {
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normal_xacts += state[i].cnt;
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}
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t1 = (tv3->tv_sec - tv1->tv_sec)*1000000.0+(tv3->tv_usec - tv1->tv_usec);
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t1 = normal_xacts*1000000.0/t1;
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t2 = (tv3->tv_sec - tv2->tv_sec)*1000000.0+(tv3->tv_usec - tv2->tv_usec);
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t2 = normal_xacts*1000000.0/t2;
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printf("transaction type: %s\n",ttype==0?"TPC-B (sort of)":"SELECT only");
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printf("scaling factor: %d\n",tps);
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printf("number of clients: %d\n",nclients);
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printf("number of transactions per client: %d\n",nxacts);
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printf("number of transactions actually processed: %d/%d\n",normal_xacts,nxacts*nclients);
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printf("tps = %f(including connections establishing)\n",t1);
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printf("tps = %f(excluding connections establishing)\n",t2);
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}
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int main(int argc, char **argv) {
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extern char *optarg;
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extern int optind, opterr, optopt;
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int c;
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char *pghost = "";
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char *pgport = "";
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char *dbName;
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int is_init_mode = 0; /* initialize mode? */
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int is_no_vacuum = 0; /* no vacuum at all before testing? */
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int is_full_vacuum = 0; /* do full vacuum before testing? */
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int debug = 0; /* debug flag */
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int ttype = 0; /* transaction type. 0: TPC-B, 1: SELECT only */
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static CState state[MAXCLIENTS]; /* clients status */
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struct timeval tv1; /* start up time */
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struct timeval tv2; /* after establishing all connections to the backend */
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struct timeval tv3; /* end time */
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int i;
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|
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fd_set input_mask;
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int nsocks; /* return from select(2) */
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|
int maxsock; /* max socket number to be waited */
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|
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#ifndef __CYGWIN32__
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struct rlimit rlim;
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#endif
|
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|
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PGconn *con;
|
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PGresult *res;
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while ((c = getopt(argc, argv, "ih:nvp:dc:t:s:S")) != EOF) {
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switch (c) {
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case 'i':
|
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is_init_mode++;
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break;
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case 'h':
|
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pghost = optarg;
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break;
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case 'n':
|
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is_no_vacuum++;
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break;
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case 'v':
|
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is_full_vacuum++;
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break;
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case 'p':
|
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pgport = optarg;
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break;
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case 'd':
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debug++;
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break;
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case 'S':
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ttype = 1;
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break;
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case 'c':
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nclients = atoi(optarg);
|
|
if (nclients <= 0 || nclients > MAXCLIENTS) {
|
|
fprintf(stderr,"wrong number of clients: %d\n",nclients);
|
|
exit(1);
|
|
}
|
|
#ifndef __CYGWIN32__
|
|
#ifdef HAVE_RLIMIT_NOFILE /* most platform uses RLIMIT_NOFILE */
|
|
if (getrlimit(RLIMIT_NOFILE,&rlim) == -1) {
|
|
#else /* but BSD doesn't ... */
|
|
if (getrlimit(RLIMIT_OFILE,&rlim) == -1) {
|
|
#endif /* HAVE_RLIMIT_NOFILE */
|
|
fprintf(stderr,"getrlimit failed. reason: %s\n",strerror(errno));
|
|
exit(1);
|
|
}
|
|
if (rlim.rlim_cur <= (nclients+2)) {
|
|
fprintf(stderr,"You need at least %d open files resource but you are only allowed to use %ld.\n",nclients+2,rlim.rlim_cur);
|
|
fprintf(stderr,"Use limit/ulimt to increase the limit before using pgbench.\n");
|
|
exit(1);
|
|
}
|
|
#endif /* #ifndef __CYGWIN32__ */
|
|
break;
|
|
case 's':
|
|
tps = atoi(optarg);
|
|
if (tps <= 0) {
|
|
fprintf(stderr,"wrong scaling factor: %d\n",tps);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 't':
|
|
nxacts = atoi(optarg);
|
|
if (nxacts <= 0) {
|
|
fprintf(stderr,"wrong number of transactions: %d\n",nxacts);
|
|
exit(1);
|
|
}
|
|
break;
|
|
default:
|
|
usage();
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc > optind) {
|
|
dbName = argv[optind];
|
|
} else {
|
|
dbName = getenv("USER");
|
|
if (dbName == NULL) {
|
|
dbName = "";
|
|
}
|
|
}
|
|
|
|
if (is_init_mode) {
|
|
init(pghost, pgport, dbName);
|
|
exit(0);
|
|
}
|
|
|
|
remains = nclients;
|
|
|
|
if (debug) {
|
|
printf("pghost: %s pgport: %s nclients: %d nxacts: %d dbName: %s\n",
|
|
pghost, pgport, nclients, nxacts, dbName);
|
|
}
|
|
|
|
/* opening connection... */
|
|
con = PQsetdb(pghost, pgport, NULL, NULL, dbName);
|
|
if (PQstatus(con) == CONNECTION_BAD) {
|
|
fprintf(stderr, "Connection to database '%s' failed.\n", dbName);
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
|
|
/* get the scaling factor that should be same as count(*) from branches... */
|
|
res = PQexec(con,"select count(*) from branches");
|
|
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
tps = atoi(PQgetvalue(res, 0, 0));
|
|
if (tps < 0) {
|
|
fprintf(stderr,"count(*) from branches invalid (%d)\n",tps);
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
if (!is_no_vacuum) {
|
|
fprintf(stderr,"starting vacuum...");
|
|
res = PQexec(con,"vacuum branches");
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
res = PQexec(con,"vacuum tellers");
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
res = PQexec(con,"delete from history");
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
res = PQexec(con,"vacuum history");
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
fprintf(stderr,"end.\n");
|
|
|
|
if (is_full_vacuum) {
|
|
fprintf(stderr,"starting full vacuum...");
|
|
res = PQexec(con,"vacuum analyze accounts");
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
fprintf(stderr,"end.\n");
|
|
}
|
|
}
|
|
PQfinish(con);
|
|
|
|
/* set random seed */
|
|
gettimeofday(&tv1, 0);
|
|
srand((uint)tv1.tv_usec);
|
|
|
|
/* get start up time */
|
|
gettimeofday(&tv1, 0);
|
|
|
|
/* make connections to the database */
|
|
for (i=0;i<nclients;i++) {
|
|
state[i].con = PQsetdb(pghost, pgport, NULL, NULL, dbName);
|
|
if (PQstatus(state[i].con) == CONNECTION_BAD) {
|
|
fprintf(stderr, "Connection to database '%s' failed.\n", dbName);
|
|
fprintf(stderr, "%s", PQerrorMessage(state[i].con));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/* time after connections set up */
|
|
gettimeofday(&tv2, 0);
|
|
|
|
/* send start up quries in async manner */
|
|
for (i=0;i<nclients;i++) {
|
|
if (ttype == 0) {
|
|
doOne(state, i, debug);
|
|
} else if (ttype == 1) {
|
|
doSelectOnly(state, i, debug);
|
|
}
|
|
}
|
|
|
|
for (;;) {
|
|
if (remains <= 0) { /* all done ? */
|
|
disconnect_all(state);
|
|
/* get end time */
|
|
gettimeofday(&tv3, 0);
|
|
printResults(ttype, state, &tv1,&tv2,&tv3);
|
|
exit(0);
|
|
}
|
|
|
|
FD_ZERO(&input_mask);
|
|
|
|
maxsock = 0;
|
|
for (i=0;i<nclients;i++) {
|
|
if (state[i].con) {
|
|
int sock = PQsocket(state[i].con);
|
|
if (sock < 0) {
|
|
fprintf(stderr,"Client %d: PQsock failed\n",i);
|
|
disconnect_all(state);
|
|
exit(1);
|
|
}
|
|
FD_SET(sock, &input_mask);
|
|
if (maxsock < sock) {
|
|
maxsock = sock;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((nsocks = select(maxsock +1, &input_mask, (fd_set *)NULL,
|
|
(fd_set *)NULL, (struct timeval *)NULL)) < 0) {
|
|
if (errno == EINTR) {
|
|
continue;
|
|
}
|
|
/* must be something wrong */
|
|
disconnect_all(state);
|
|
fprintf(stderr,"select failed: %s\n",strerror(errno));
|
|
exit(1);
|
|
} else if (nsocks == 0) { /* timeout */
|
|
fprintf(stderr,"select timeout\n");
|
|
for (i=0;i<nclients;i++) {
|
|
fprintf(stderr,"client %d:state %d cnt %d ecnt %d listen %d\n",
|
|
i,state[i].state,state[i].cnt,state[i].ecnt,state[i].listen);
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
/* ok, backend returns reply */
|
|
for (i=0;i<nclients;i++) {
|
|
if (state[i].con && FD_ISSET(PQsocket(state[i].con), &input_mask)) {
|
|
if (ttype == 0) {
|
|
doOne(state, i, debug);
|
|
} else if (ttype == 1) {
|
|
doSelectOnly(state, i, debug);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|