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#!/usr/bin/perl -w
# This is a test with uses 5 processes to insert, update and select from
# two tables.
# One inserts records in the tables, one updates some record in it and
# the last 3 does different selects on the tables.
# Er, hmmm..., something like that :^)
# Modified to do crazy-join, à la Nasdaq.
$opt_loop_count=10000; # Change this to make test harder/easier
##################### Standard benchmark inits ##############################
use Mysql;
use Getopt::Long;
use Benchmark;
package main;
$opt_skip_create=$opt_skip_in=$opt_verbose=$opt_fast_insert=
$opt_lock_tables=$opt_debug=$opt_skip_delete=$opt_fast=$opt_force=0;
$opt_host=""; $opt_db="test";
GetOptions("host=s","db=s","loop-count=i","skip-create","skip-in",
"skip-delete", "verbose","fast-insert","lock-tables","debug","fast",
"force") || die "Aborted";
$opt_verbose=$opt_debug=$opt_lock_tables=$opt_fast_insert=$opt_fast=$opt_skip_in=$Mysql::db_errstr=$opt_force=undef; # Ignore warnings from these
print "Testing 9 multiple connections to a server with 1 insert/update\n";
print "and 8 select connections.\n";
@testtables = qw(bench_f21 bench_f22 bench_f23 bench_f24 bench_f25);
$numtables = $#testtables; # make emacs happier
$dtable = "directory";
####
#### Start timeing and start test
####
$start_time=new Benchmark;
if (!$opt_skip_create)
{
$dbh = Mysql->Connect($opt_host, $opt_db) || die $Mysql::db_errstr;
$Mysql::QUIET = 1;
foreach $table (@testtables) {
$dbh->Query("drop table $table");
}
$dbh->Query("drop table $dtable");
$Mysql::QUIET = 0;
foreach $table (@testtables) {
print "Creating table $table in database $opt_db\n";
$dbh->Query("create table $table".
" (id int(6) not null,".
" info varchar(32),".
" marker timestamp,".
" primary key(id))")
or die $Mysql::db_errstr;
}
print "Creating directory table $dtable in $opt_db\n";
$dbh->Query("create table $dtable (id int(6), last int(6))")
or die $Mysql::db_errstr;
# Populate directory table
for $i ( 0 .. $numtables ) {
$dbh->Query("insert into $dtable values($i, 0)");
}
$dbh=0; # Close handler
}
$|= 1; # Autoflush
####
#### Start the tests
####
#$test_index = 0;
test_1() if (($pid=fork()) == 0); $work{$pid}="insert";
test_2() if (($pid=fork()) == 0); $work{$pid}="simple1";
test_3() if (($pid=fork()) == 0); $work{$pid}="funny1";
test_2() if (($pid=fork()) == 0); $work{$pid}="simple2";
test_3() if (($pid=fork()) == 0); $work{$pid}="funny2";
test_2() if (($pid=fork()) == 0); $work{$pid}="simple3";
test_3() if (($pid=fork()) == 0); $work{$pid}="funny3";
test_2() if (($pid=fork()) == 0); $work{$pid}="simple4";
test_3() if (($pid=fork()) == 0); $work{$pid}="funny4";
$errors=0;
while (($pid=wait()) != -1)
{
$ret=$?/256;
print "thread '" . $work{$pid} . "' finnished with exit code $ret\n";
$errors++ if ($ret != 0);
}
if (!$opt_skip_delete && !$errors)
{
$dbh = Mysql->Connect($opt_host, $opt_db) || die $Mysql::db_errstr;
foreach $table (@testtables) {
$dbh->Query("drop table $table");
}
}
print ($errors ? "Test failed\n" :"Test ok\n");
$end_time=new Benchmark;
print "Total time: " .
timestr(timediff($end_time, $start_time),"noc") . "\n";
exit(0);
#
# Insert records in the ?? tables the Nasdaq way
#
sub test_1
{
my ($dbh,$table,$tmpvar,$rows,$found,$i);
$dbh = Mysql->Connect($opt_host, $opt_db) || die $Mysql::db_errstr;
$tmpvar=1;
$rows=$found=0;
for ($i=0 ; $i < $opt_loop_count; $i++)
{
$tmpvar^= ((($tmpvar + 63) + $i)*3 % $numtables);
# Nasdaq step 1:
$sth=$dbh->Query("select id,last from $dtable where id='$tmpvar'")
or die "Select directory row: $Mysql::db_errstr\n";
# Nasdaq step 2:
my ($did,$dlast) = $sth->FetchRow
or die "Fetch directory row: $Mysql::db_errstr\n";
$dlast++;
$sth=$dbh->Query("INSERT into $testtables[$did]".
" VALUES($dlast,'This is entry $dlast',NULL)")
|| die "Got error on insert table $testtable[$did]:".
" $Mysql::db_errstr\n";
# Nasdaq step 3 - where my application hangs
$sth=$dbh->Query("update $dtable set last='$dlast' where id='$tmpvar'")
or die "Updating directory for table $testtable[$did]:".
" Mysql::db_errstr\n";
$rows++;
}
$dbh=0;
print "Test_1: Inserted $rows rows\n";
exit(0);
}
#
# Nasdaq simple select
#
sub test_2
{
my ($dbh,$id,$tmpvar,$rows,$found,$i);
$dbh = Mysql->Connect($opt_host, $opt_db) || die $Mysql::db_errstr;
$rows=$found=0;
$tmpvar=1;
for ($i=0 ; $i < $opt_loop_count ; $i++)
{
$tmpvar^= ((($tmpvar + 63) + $i)*3 % $numtables);
$sth=$dbh->Query("select a.id,a.info from $testtables[$tmpvar] as a,".
"$dtable as d".
" where a.id=d.last and $i >= 0")
|| die "Got error select max: $Mysql::db_errstr\n";
if ((@row = $sth->FetchRow()) && defined($row[0]))
{
$found++;
}
}
$dbh=0;
print "Test_2: Found $found rows\n";
exit(0);
}
#
# Nasdaq not-so-simple select
#
sub test_3
{
my ($dbh,$id,$tmpvar,$rows,$i);
$dbh = Mysql->Connect($opt_host, $opt_db) || die $Mysql::db_errstr;
$rows=0;
$tmpvar ||= $numtables;
for ($i=0 ; $i < $opt_loop_count ; $i++)
{
$tmpvar^= ((($tmpvar + 63) + $i)*3 % $numtables);
$id1 = ($tmpvar+1) % $numtables;
$id2 = ($id1+1) % $numtables;
$id3 = ($id2+1) % $numtables;
$sth = $dbh->Query("SELECT greatest(a.id, b.id, c.id), a.info".
" FROM $testtables[$id1] as a,".
" $testtables[$id2] as b,".
" $testtables[$id3] as c,".
" $dtable as d1, $dtable as d2, $dtable as d3".
" WHERE ".
" d1.last=a.id AND d2.last=b.id AND d3.last=c.id".
" AND d1.id='$id1' AND d2.id='$id2'".
" AND d3.id='$id3'")
or die "Funny select: $Mysql::db_errstr\n";
$rows+=$sth->numrows;
}
$dbh=0;
print "Test_3: Found $rows rows\n";
exit(0);
}
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