test-create
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上传日期:2022-05-23
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文件大小:7k
- #!/usr/bin/perl
- # Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- #
- # This library is free software; you can redistribute it and/or
- # modify it under the terms of the GNU Library General Public
- # License as published by the Free Software Foundation; either
- # version 2 of the License, or (at your option) any later version.
- #
- # This library is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- # Library General Public License for more details.
- #
- # You should have received a copy of the GNU Library General Public
- # License along with this library; if not, write to the Free
- # Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- # MA 02111-1307, USA
- #
- # This test is for testing how long it takes to create tables,
- # make a count(*) from them and finally drop the tables. These
- # commands will be done in different ways in this test.
- # Using option --fast will drop all the tables in the end
- # of this test with one command instead of making own
- # 'drop' command for each and every table.
- # By changing the variable '$table_amount' value you can make
- # this test a lot harder/easier for your computer to drive.
- # Note that when using value bigger than 64 for this variable
- # will do 'drop table'-command in totally different way because of that
- # how MySQL handles these commands.
- ##################### Standard benchmark inits ##############################
- use Cwd;
- use DBI;
- use Benchmark;
- $opt_loop_count=10000; # Change this to make test harder/easier
- # This is the default value for the amount of tables used in this test.
- $pwd = cwd(); $pwd = "." if ($pwd eq '');
- require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!n";
- $create_loop_count=$opt_loop_count;
- if ($opt_small_test)
- {
- $opt_loop_count/=100;
- $create_loop_count/=1000;
- }
- $max_tables=min($limits->{'max_tables'},$opt_loop_count);
- if ($opt_small_test)
- {
- $max_tables=10;
- }
- print "Testing the speed of creating and dropping tablesn";
- print "Testing with $max_tables tables and $opt_loop_count loop countnn";
- ####
- #### Connect and start timeing
- ####
- $dbh = $server->connect();
- ### Test how the database can handle many tables
- ### Create $max_tables ; Access all off them with a simple query
- ### and then drop the tables
- if ($opt_force) # If tables used in this test exist, drop 'em
- {
- print "Okay..Let's make sure that our tables don't exist yet.nn";
- for ($i=1 ; $i <= $max_tables ; $i++)
- {
- $dbh->do("drop table bench_$i" . $server->{'drop_attr'});
- }
- }
- if ($opt_fast && defined($server->{vacuum}))
- {
- $server->vacuum(1,$dbh);
- }
- print "Testing create of tablesn";
- $loop_time=$start_time=new Benchmark;
- for ($i=1 ; $i <= $max_tables ; $i++)
- {
- if (do_many($dbh,$server->create("bench_$i",
- ["i int NOT NULL",
- "d double",
- "f float",
- "s char(10)",
- "v varchar(100)"],
- ["primary key (i)"])))
- {
- # Got an error; Do cleanup
- for ($i=1 ; $i <= $max_tables ; $i++)
- {
- $dbh->do("drop table bench_$i" . $server->{'drop_attr'});
- }
- die "Test aborted";
- }
- }
- $end_time=new Benchmark;
- print "Time for create_MANY_tables ($max_tables): " .
- timestr(timediff($end_time, $loop_time),"all") . "nn";
- if ($opt_fast && defined($server->{vacuum}))
- {
- $server->vacuum(1,$dbh);
- }
- #### Here comes $max_tables couples of cont(*) to the tables.
- #### We'll check how long it will take...
- ####
- print "Accessing tablesn";
- if ($limits->{'group_functions'})
- {
- $query="select count(*) from ";
- $type="select_group_when_MANY_tables";
- }
- else
- {
- $query="select * from ";
- $type="select_when_MANY_tables";
- }
- $loop_time=new Benchmark;
- for ($i=1 ; $i <= $max_tables ; $i++)
- {
- $sth = $dbh->do("$query bench_$i") or die $DBI::errstr;
- }
- $end_time=new Benchmark;
- print "Time to $type ($max_tables): " .
- timestr(timediff($end_time, $loop_time),"all") . "nn";
- ####
- #### Now we are going to drop $max_tables tables;
- ####
- print "Testing dropn";
- $loop_time=new Benchmark;
- if ($opt_fast && $server->{'limits'}->{'multi_drop'} &&
- $server->{'limits'}->{'query_size'} > 11+$max_tables*10)
- {
- my $query="drop table bench_1";
- for ($i=2 ; $i <= $max_tables ; $i++)
- {
- $query.=",bench_$i";
- }
- $sth = $dbh->do($query . $server->{'drop_attr'}) or die $DBI::errstr;
- }
- else
- {
- for ($i=1 ; $i <= $max_tables ; $i++)
- {
- $sth = $dbh->do("drop table bench_$i" . $server->{'drop_attr'})
- or die $DBI::errstr;
- }
- }
- $end_time=new Benchmark;
- print "Time for drop_table_when_MANY_tables ($max_tables): " .
- timestr(timediff($end_time, $loop_time),"all") . "nn";
- if ($opt_fast && defined($server->{vacuum}))
- {
- $server->vacuum(1,$dbh);
- }
- #### We'll do first one 'create table' and then we'll drop it
- #### away immediately. This loop shall be executed $opt_loop_count
- #### times.
- print "Testing create+dropn";
- $loop_time=new Benchmark;
- for ($i=1 ; $i <= $create_loop_count ; $i++)
- {
- do_many($dbh,$server->create("bench_$i",
- ["i int NOT NULL",
- "d double",
- "f float",
- "s char(10)",
- "v varchar(100)"],
- ["primary key (i)"]));
- $sth = $dbh->do("drop table bench_$i" . $server->{'drop_attr'}) or die $DBI::errstr;
- }
- $end_time=new Benchmark;
- print "Time for create+drop ($create_loop_count): " .
- timestr(timediff($end_time, $loop_time),"all") . "n";
- if ($opt_fast && defined($server->{vacuum}))
- {
- $server->vacuum(1,$dbh);
- }
- #
- # Same test, but with a table with many keys
- #
- my @fields=(); my @keys=();
- $keys=min($limits->{'max_index'},16); # 16 is more than enough
- $seg= min($limits->{'max_index_parts'},$keys,16); # 16 is more than enough
- # Make keys on the most important types
- @types=(0,0,0,1,0,0,0,1,1,1,1,1,1,1,1,1,1); # A 1 for each char field
- push(@fields,"field1 tinyint not null");
- push(@fields,"field2 mediumint not null");
- push(@fields,"field3 smallint not null");
- push(@fields,"field4 char(16) not null");
- push(@fields,"field5 integer not null");
- push(@fields,"field6 float not null");
- push(@fields,"field7 double not null");
- for ($i=8 ; $i <= $keys ; $i++)
- {
- push(@fields,"field$i char(5) not null"); # Should be relatively fair
- }
- # Let first key contain many segments
- my $query="primary key (";
- for ($i= 1 ; $i <= $seg ; $i++)
- {
- $query.= "field$i,";
- }
- substr($query,-1)=")";
- push (@keys,$query);
- #Create other keys
- for ($i=2 ; $i <= $keys ; $i++)
- {
- push(@keys,"index index$i (field$i)");
- }
- $loop_time=new Benchmark;
- for ($i=1 ; $i <= $opt_loop_count ; $i++)
- {
- do_many($dbh,$server->create("bench_$i", @fields, @index));
- $dbh->do("drop table bench_$i" . $server->{'drop_attr'}) or die $DBI::errstr;
- }
- $end_time=new Benchmark;
- print "Time for create_key+drop ($opt_loop_count): " .
- timestr(timediff($end_time, $loop_time),"all") . "n";
- if ($opt_fast && defined($server->{vacuum}))
- {
- $server->vacuum(1,$dbh);
- }
- ####
- #### End of benchmark
- ####
- $dbh->disconnect; # close connection
- end_benchmark($start_time);