mirror of https://github.com/postgres/postgres
Tatsuo Ishii
26 years ago
parent
bfbd58ce13
commit
a765db409b
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# $Header: /cvsroot/pgsql/contrib/pgbench/Makefile,v 1.1 2000/01/15 12:38:09 ishii Exp $
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SRCDIR= ../../src
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include $(SRCDIR)/Makefile.global |
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CFLAGS:= -I$(LIBPQDIR) $(CFLAGS)
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TARGET = pgbench
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OBJS = pgbench.o
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all:: $(TARGET) |
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$(TARGET): $(OBJS) |
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$(CC) -o $(TARGET) $(OBJS) -L$(LIBPQDIR) -lpq $(LDFLAGS)
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install: $(TARGET) |
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$(INSTALL) $(INSTL_EXE_OPTS) $(TARGET)$(X) $(BINDIR)/$(TARGET)$(X)
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clean: |
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$(RM) $(TARGET)$(X) $(OBJS)
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distclean: clean |
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@ -0,0 +1,149 @@ |
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pgbench 1.2 README 2000/1/15 Tatsuo Ishii (t-ishii@sra.co.jp) |
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o What is pgbench? |
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pgbench is a simple program to run a benchmark test sort of |
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"TPC-B". pgbench is a client application of PostgreSQL and runs |
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with PostgreSQL only. It performs lots of small and simple |
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transactions including select/update/insert operations then |
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calculates number of transactions successfully completed within a |
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second (transactions per second, tps). Targeting data includes a |
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table with at least 100k tuples. |
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Example outputs from pgbench look like: |
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number of clients: 4 |
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number of transactions per client: 100 |
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number of processed transactions: 400/400 |
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tps = 19.875015(including connections establishing) |
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tps = 20.098827(excluding connections establishing) |
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Similar program called "JDBCBench" already exists, but it requires |
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Java that may not be available on every platform. Moreover some |
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people concerned about the overhead of Java that might lead |
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inaccurate results. So I decided to write in pure C, and named |
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it "pgbench." |
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o features of pgbench |
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- pgbench is written in C using libpq only. So it is very portable |
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and easy to install. |
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- pgbench can simulate concurrent connections using asynchronous |
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capability of libpq. No threading is required. |
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o How to install pgbench |
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(1) Edit the first line in Makefile |
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POSTGRESHOME = /usr/local/pgsql |
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so that it points to the directory where PostgreSQL installed. |
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(2) Run configure |
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(3) Run make. You will see an executable file "pgbench" there. |
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o How to use pgbench? |
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(1) Initialize database by: |
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pgbench -i <dbname> |
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where <dbname> is the name of database. pgbench uses four tables |
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accounts, branches, history and tellers. These tables will be |
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destroyed. Be very carefully if you have tables having same |
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names. Default test data contains: |
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table # of tuples |
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------------------------- |
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branches 1 |
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tellers 10 |
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accounts 100000 |
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history 0 |
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You can increase the number of tuples by using -s option. See |
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below. |
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(2) Run the benchmark test |
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pgbench <dbname> |
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The default configuration is: |
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number of clients: 1 |
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number of transactions per client: 10 |
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o options |
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pgbench has number of options. |
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-h hostname |
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hostname where the backend is running. If this option |
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is omitted, pgbench will connect to the localhost via |
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Unix domain socket. |
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-p port |
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the port number that the backend is accepting. default is |
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5432. |
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-c number_of_clients |
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Number of clients simulated. default is 1. |
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-t number_of_transactions |
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Number of transactions each client runs. default is 10. |
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-s scaling_factor |
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this should be used with -i (initialize) option. |
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number of tuples generated will be multiple of the |
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scaling factor. For example, -s 100 will imply 10M |
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(10,000,000) tuples in the accounts table. |
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default is 1. |
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-n |
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No vacuuming and cleaning the history table prior the |
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test is performed. |
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-v |
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Do vacuuming before testing. This will take some time. |
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Without both -n and -v pgbench will vacuum tellers and |
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branches tables only. |
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-S |
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Perform select only transactions instead of TPC-B. |
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-d |
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debug option. |
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o What is the "transaction" actually performed in pgbench? |
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(1) begin; |
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(2) update accounts set abalance = abalance + :delta where aid = :aid; |
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(3) select abalance from accounts where aid = :aid; |
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(4) update tellers set tbalance = tbalance + :delta where tid = :tid; |
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(5) update branches set bbalance = bbalance + :delta where bid = :bid; |
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(6) insert into history(tid,bid,aid,delta) values(:tid,:bid,:aid,:delta); |
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(7) end; |
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o License? |
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Basically it is same as BSD license. See pgbench.c for more details. |
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o History |
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2000/1/15 pgbench-1.2 contributed to PostgreSQL |
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* Add -v option |
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1999/09/29 pgbench-1.1 released |
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* Apply cygwin patches contributed by Yutaka Tanida |
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* More robust when backends die |
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* Add -S option (select only) |
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1999/09/04 pgbench-1.0 released |
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@ -0,0 +1,737 @@ |
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/*
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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"); |
||||
if (PQresultStatus(res) != PGRES_COPY_IN) { |
||||
fprintf(stderr, "%s", PQerrorMessage(con)); |
||||
exit(1); |
||||
} |
||||
PQclear(res); |
||||
|
||||
fprintf(stderr,"creating tables...\n"); |
||||
for(i = 0; i < naccounts*tps; i++) { |
||||
int j = i + 1; |
||||
sprintf(sql,"%d\t%d\t%d\t\n",i+1,(i+1)/naccounts,0); |
||||
if (PQputline(con,sql)) { |
||||
fprintf(stderr,"PQputline failed\n"); |
||||
exit(1); |
||||
} |
||||
if (j % 10000 == 0) { |
||||
fprintf(stderr,"%d tuples done.\n",j); |
||||
} |
||||
} |
||||
if (PQputline(con,"\\.\n")) { |
||||
fprintf(stderr,"very last PQputline failed\n"); |
||||
exit(1); |
||||
} |
||||
|
||||
if (PQendcopy(con)) { |
||||
fprintf(stderr,"PQendcopy failed\n"); |
||||
exit(1); |
||||
} |
||||
|
||||
res = PQexec(con,"end"); |
||||
if (PQresultStatus(res) != PGRES_COMMAND_OK) { |
||||
fprintf(stderr, "%s", PQerrorMessage(con)); |
||||
exit(1); |
||||
} |
||||
|
||||
/* vacuum */ |
||||
fprintf(stderr,"vacuum..."); |
||||
res = PQexec(con,"vacuum analyze"); |
||||
if (PQresultStatus(res) != PGRES_COMMAND_OK) { |
||||
fprintf(stderr, "%s", PQerrorMessage(con)); |
||||
exit(1); |
||||
} |
||||
fprintf(stderr,"done.\n"); |
||||
|
||||
PQfinish(con); |
||||
} |
||||
|
||||
/* print out results */ |
||||
static void printResults( |
||||
int ttype, CState *state,
|
||||
struct timeval *tv1,struct timeval *tv2, |
||||
struct timeval *tv3) { |
||||
double t1,t2; |
||||
int i; |
||||
int normal_xacts = 0; |
||||
|
||||
for (i=0;i<nclients;i++) { |
||||
normal_xacts += state[i].cnt; |
||||
} |
||||
|
||||
t1 = (tv3->tv_sec - tv1->tv_sec)*1000000.0+(tv3->tv_usec - tv1->tv_usec); |
||||
t1 = normal_xacts*1000000.0/t1; |
||||
|
||||
t2 = (tv3->tv_sec - tv2->tv_sec)*1000000.0+(tv3->tv_usec - tv2->tv_usec); |
||||
t2 = normal_xacts*1000000.0/t2; |
||||
|
||||
printf("transaction type: %s\n",ttype==0?"TPC-B (sort of)":"SELECT only"); |
||||
printf("scaling factor: %d\n",tps); |
||||
printf("number of clients: %d\n",nclients); |
||||
printf("number of transactions per client: %d\n",nxacts); |
||||
printf("number of transactions actually processed: %d/%d\n",normal_xacts,nxacts*nclients); |
||||
printf("tps = %f(including connections establishing)\n",t1); |
||||
printf("tps = %f(excluding connections establishing)\n",t2); |
||||
} |
||||
|
||||
int main(int argc, char **argv) { |
||||
extern char *optarg; |
||||
extern int optind, opterr, optopt; |
||||
int c; |
||||
char *pghost = ""; |
||||
char *pgport = ""; |
||||
char *dbName; |
||||
int is_init_mode = 0; /* initialize mode? */ |
||||
int is_no_vacuum = 0; /* no vacuum at all before testing? */ |
||||
int is_full_vacuum = 0; /* do full vacuum before testing? */ |
||||
int debug = 0; /* debug flag */ |
||||
int ttype = 0; /* transaction type. 0: TPC-B, 1: SELECT only */ |
||||
|
||||
static CState state[MAXCLIENTS]; /* clients status */ |
||||
|
||||
struct timeval tv1; /* start up time */ |
||||
struct timeval tv2; /* after establishing all connections to the backend */ |
||||
struct timeval tv3; /* end time */ |
||||
|
||||
int i; |
||||
|
||||
fd_set input_mask; |
||||
int nsocks; /* return from select(2) */ |
||||
int maxsock; /* max socket number to be waited */ |
||||
|
||||
#ifndef __CYGWIN32__ |
||||
struct rlimit rlim; |
||||
#endif |
||||
|
||||
PGconn *con; |
||||
PGresult *res; |
||||
|
||||
while ((c = getopt(argc, argv, "ih:nvp:dc:t:s:S")) != EOF) { |
||||
switch (c) { |
||||
case 'i': |
||||
is_init_mode++; |
||||
break; |
||||
case 'h': |
||||
pghost = optarg; |
||||
break; |
||||
case 'n': |
||||
is_no_vacuum++; |
||||
break; |
||||
case 'v': |
||||
is_full_vacuum++; |
||||
break; |
||||
case 'p': |
||||
pgport = optarg; |
||||
break; |
||||
case 'd': |
||||
debug++; |
||||
break; |
||||
case 'S': |
||||
ttype = 1; |
||||
break; |
||||
case 'c': |
||||
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); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
} |
||||
Loading…
Reference in new issue