457 lines
14 KiB
Perl
457 lines
14 KiB
Perl
#!/usr/bin/perl
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# Copyright (c) 2000, 2001, 2003, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
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# Use is subject to license terms.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public
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# License as published by the Free Software Foundation; version 2
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# of the License.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public
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# License along with this library; if not, write to the Free
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# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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# MA 02110-1301, USA
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#
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# Test of selecting on keys that consist of many parts
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#
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##################### Standard benchmark inits ##############################
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use Cwd;
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use DBI;
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use Getopt::Long;
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use Benchmark;
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$opt_loop_count=10000;
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$opt_medium_loop_count=1000;
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$opt_small_loop_count=10;
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$opt_regions=6;
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$opt_groups=100;
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$pwd = cwd(); $pwd = "." if ($pwd eq '');
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require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!\n";
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$columns=min($limits->{'max_columns'},500,($limits->{'query_size'}-50)/24,
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$limits->{'max_conditions'}/2-3);
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if ($opt_small_test)
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{
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$opt_loop_count/=10;
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$opt_medium_loop_count/=10;
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$opt_small_loop_count/=10;
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$opt_groups/=10;
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}
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print "Testing the speed of selecting on keys that consist of many parts\n";
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print "The test-table has $opt_loop_count rows and the test is done with $columns ranges.\n\n";
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####
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#### Connect and start timeing
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####
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$dbh = $server->connect();
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$start_time=new Benchmark;
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####
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#### Create needed tables
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####
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goto select_test if ($opt_skip_create);
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print "Creating table\n";
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$dbh->do("drop table bench1" . $server->{'drop_attr'});
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do_many($dbh,$server->create("bench1",
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["region char(1) NOT NULL",
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"idn integer(6) NOT NULL",
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"rev_idn integer(6) NOT NULL",
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"grp integer(6) NOT NULL"],
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["primary key (region,idn)",
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"unique (region,rev_idn)",
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"unique (region,grp,idn)"]));
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if ($opt_lock_tables)
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{
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do_query($dbh,"LOCK TABLES bench1 WRITE");
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}
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if ($opt_fast && defined($server->{vacuum}))
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{
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$server->vacuum(1,\$dbh);
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}
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####
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#### Insert $opt_loop_count records with
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#### region: "A" -> "E"
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#### idn: 0 -> count
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#### rev_idn: count -> 0,
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#### grp: distributed values 0 - > count/100
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####
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print "Inserting $opt_loop_count rows\n";
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$loop_time=new Benchmark;
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if ($opt_fast && $server->{transactions})
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{
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$dbh->{AutoCommit} = 0;
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}
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$query="insert into bench1 values (";
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$half_done=$opt_loop_count/2;
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for ($id=0,$rev_id=$opt_loop_count-1 ; $id < $opt_loop_count ; $id++,$rev_id--)
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{
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$grp=$id*3 % $opt_groups;
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$region=chr(65+$id%$opt_regions);
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do_query($dbh,"$query'$region',$id,$rev_id,$grp)");
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if ($id == $half_done)
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{ # Test with different insert
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$query="insert into bench1 (region,idn,rev_idn,grp) values (";
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}
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}
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if ($opt_fast && $server->{transactions})
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{
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$dbh->commit;
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$dbh->{AutoCommit} = 1;
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}
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$end_time=new Benchmark;
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print "Time to insert ($opt_loop_count): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n\n";
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if ($opt_lock_tables)
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{
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do_query($dbh,"UNLOCK TABLES");
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}
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if ($opt_fast && defined($server->{vacuum}))
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{
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$server->vacuum(0,\$dbh,"bench1");
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}
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if ($opt_lock_tables)
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{
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do_query($dbh,"LOCK TABLES bench1 WRITE");
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}
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####
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#### Do some selects on the table
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####
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select_test:
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if ($limits->{'group_functions'})
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{
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my ($tmp); $tmp=1000;
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print "Test if the database has a query cache\n";
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# First ensure that the table is read into memory
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fetch_all_rows($dbh,"select sum(idn+$tmp),sum(rev_idn-$tmp) from bench1");
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$loop_time=new Benchmark;
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for ($tests=0 ; $tests < $opt_loop_count ; $tests++)
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{
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fetch_all_rows($dbh,"select sum(idn+100),sum(rev_idn-100) from bench1");
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}
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$end_time=new Benchmark;
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print "Time for select_cache ($opt_loop_count): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n\n";
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# If the database has a query cache, the following loop should be much
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# slower than the previous loop
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$loop_time=new Benchmark;
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for ($tests=0 ; $tests < $opt_loop_count ; $tests++)
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{
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fetch_all_rows($dbh,"select sum(idn+$tests),sum(rev_idn-$tests) from bench1");
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}
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$end_time=new Benchmark;
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print "Time for select_cache2 ($opt_loop_count): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n\n";
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}
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print "Testing big selects on the table\n";
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$loop_time=new Benchmark;
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$rows=0;
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for ($i=0 ; $i < $opt_small_loop_count ; $i++)
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{
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$grp=$i*11 % $opt_groups;
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$region=chr(65+$i%($opt_regions+1)); # One larger to test misses
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region='$region'");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region='$region' and idn=$i");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region='$region' and rev_idn=$i");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region='$region' and grp=$grp");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region>='B' and region<='C' and grp=$grp");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where region>='B' and region<='E' and grp=$grp");
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$rows+=fetch_all_rows($dbh,"select idn from bench1 where grp=$grp"); # This is hard
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}
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$count=$opt_small_loop_count*7;
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$end_time=new Benchmark;
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print "Time for select_big ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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# Test select with many OR's
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$loop_time=new Benchmark;
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$tmpvar=0;
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$count=0;
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$estimated=0;
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$max_and_conditions=$limits->{'max_conditions'}/2;
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$rows=0;
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for ($i=0 ; $i < $opt_small_loop_count ; $i++)
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{
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$region=chr(65+$i%($opt_regions+1)); # One larger to test out-of-regions
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$query="select * from bench1 where ";
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$or_part="grp = 1";
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$or_part2="region='A' and grp=1";
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for ($j=1 ; $j < $columns; $j++)
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{
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$tmpvar^= ((($tmpvar + 63) + $j)*3 % 100000);
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$tmp=$tmpvar % $opt_groups;
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$tmp_region=chr(65+$tmpvar%$opt_regions);
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$or_part.=" or grp=$tmp";
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if ($j < $max_and_conditions)
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{
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$or_part2.=" or region='$tmp_region' and grp=$tmp";
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}
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}
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$or_part="region='$region' and ($or_part)";
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# Same query, but use 'func_extra_in_num' instead.
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if ($limits->{'func_extra_in_num'})
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{
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$in_part=$or_part;
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$in_part=~ s/ = / IN \(/;
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$in_part=~ s/ or grp=/,/g;
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$in_part.= ")";
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defined($found=fetch_all_rows($dbh,$query . $in_part)) || die $DBI::errstr;
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$rows+=$found;
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$count++;
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}
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for ($j=0; $j < 10 ; $j++)
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{
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$rows+=fetch_all_rows($dbh,$query . $or_part);
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$rows+=fetch_all_rows($dbh,$query . $or_part2);
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# Do it a little harder by setting a extra range
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$rows+=fetch_all_rows($dbh,"$query ($or_part) and idn < 50");
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$rows+=fetch_all_rows($dbh,"$query (($or_part) or (region='A' and grp < 10)) and region <='B'")
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}
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$count+=$j*4;
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_small_loop_count));
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}
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print_time($estimated);
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print " for select_range ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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#
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# Testing MIN() and MAX() on keys
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#
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if ($limits->{'group_functions'} && $limits->{'order_by_unused'})
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{
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$loop_time=new Benchmark;
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$count=0;
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$estimated=0;
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for ($tests=0 ; $tests < $opt_loop_count ; $tests++)
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{
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$count+=7;
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$grp=$tests*3 % $opt_groups;
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$region=chr(65+$tests % $opt_regions);
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if ($limits->{'group_func_sql_min_str'})
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{
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fetch_all_rows($dbh,"select min(region) from bench1");
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fetch_all_rows($dbh,"select max(region) from bench1");
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fetch_all_rows($dbh,"select min(region),max(region) from bench1");
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}
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fetch_all_rows($dbh,"select min(rev_idn) from bench1 where region='$region'");
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fetch_all_rows($dbh,"select max(grp) from bench1 where region='$region'");
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fetch_all_rows($dbh,"select max(idn) from bench1 where region='$region' and grp=$grp");
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if ($limits->{'group_func_sql_min_str'})
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{
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fetch_all_rows($dbh,"select max(region) from bench1 where region<'$region'");
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}
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,
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$tests+1, $opt_loop_count));
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}
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print_time($estimated);
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print " for min_max_on_key ($count): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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$loop_time=new Benchmark;
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$count=0;
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$estimated=0;
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for ($tests=0 ; $tests < $opt_loop_count ; $tests++)
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{
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$count+=5;
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$grp=$tests*3 % $opt_groups;
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$region=chr(65+$tests % $opt_regions);
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fetch_all_rows($dbh,"select count(*) from bench1 where region='$region'");
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fetch_all_rows($dbh,"select count(*) from bench1 where region='$region' and grp=$grp");
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fetch_all_rows($dbh,"select count(*) from bench1 where region>'$region'");
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fetch_all_rows($dbh,"select count(*) from bench1 where region<='$region'");
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fetch_all_rows($dbh,"select count(*) from bench1 where region='$region' and grp>$grp");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,
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$tests+1, $opt_loop_count));
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}
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print_time($estimated);
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print " for count_on_key ($count): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n\n";
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}
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if ($limits->{'group_functions'})
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{
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$loop_time=new Benchmark;
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$rows=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$rows+=fetch_all_rows($dbh,"select grp,count(*) from bench1 group by grp");
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}
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$end_time=new Benchmark;
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print "Time for count_group_on_key_parts ($i:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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}
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if ($limits->{'group_distinct_functions'})
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{
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print "Testing count(distinct) on the table\n";
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select count(distinct region) from bench1");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct_key_prefix ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select count(distinct grp) from bench1");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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# Workaround mimer's behavior
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if ($limits->{'multi_distinct'})
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{
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select count(distinct grp),count(distinct rev_idn) from bench1");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct_2 ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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}
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select region,count(distinct idn) from bench1 group by region");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct_group_on_key ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select grp,count(distinct idn) from bench1 group by grp");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct_group_on_key_parts ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select grp,count(distinct rev_idn) from bench1 group by grp");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$opt_medium_loop_count));
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}
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print_time($estimated);
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print " for count_distinct_group ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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$loop_time=new Benchmark;
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$rows=$estimated=$count=0;
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$test_count=$opt_medium_loop_count/10;
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for ($i=0 ; $i < $test_count ; $i++)
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{
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$count++;
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$rows+=fetch_all_rows($dbh,"select idn,count(distinct region) from bench1 group by idn");
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$end_time=new Benchmark;
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last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
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$test_count));
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}
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print_time($estimated);
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print " for count_distinct_big ($count:$rows): " .
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timestr(timediff($end_time, $loop_time),"all") . "\n";
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}
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####
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#### End of benchmark
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####
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if ($opt_lock_tables)
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{
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do_query($dbh,"UNLOCK TABLES");
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}
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if (!$opt_skip_delete)
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{
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do_query($dbh,"drop table bench1" . $server->{'drop_attr'});
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}
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if ($opt_fast && defined($server->{vacuum}))
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{
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$server->vacuum(0,\$dbh);
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}
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$dbh->disconnect; # close connection
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end_benchmark($start_time);
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