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#!/usr/bin/perl -w |
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|
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# original version by Nélio Alves Pereira Filho |
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# modification by Dobrica Pavlinusic |
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|
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use strict; |
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use Pg; |
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use Getopt::Long; |
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use POSIX ":sys_wait_h"; |
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|
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|
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$| = 1; |
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my $control = 0; |
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|
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my ($numprocs,$numstmts) = (4,100); |
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my ($debug,$verbose) = (0,0); |
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my ($help,$host,$port,$user,$password); |
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|
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my $result = GetOptions( |
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"debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help, |
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"host=s" => \$host, "port=i" => \$port, |
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"user=s" => \$user, "password=s" => \$password, |
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"numprocs=i" => \$numprocs, "numstmts=i" => \$numstmts, |
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); |
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|
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if (defined($help) || (scalar(@ARGV) < 3)) { |
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print "Usage: $0 [options] db table column |
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Options: |
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--host=hostname --port=port |
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--user=username --password=string |
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--numprocs=4 --numstmts=100 |
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"; |
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exit ((scalar(@ARGV) < 3)? 1:0); |
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} |
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|
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print STDERR "Running $numprocs threads, $numstmts inserts each\n"; |
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|
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my $db = $ARGV[0] || "master"; |
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my $table = $ARGV[1]; |
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my $col = $ARGV[2]; |
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|
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my $info = "dbname=$db"; |
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$info = "$info host=$host" if (defined($host)); |
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$info = "$info port=$port" if (defined($port)); |
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$info = "$info user=$user" if (defined($user)); |
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$info = "$info password=$password" if (defined($password)); |
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|
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my @pids = (); |
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my $q; |
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|
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for (my $i=0; $i < $numprocs; $i++) { |
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my $pid = fork(); |
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if (! defined($pid)) { |
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print "Can't fork...\n"; |
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} elsif ($pid == 0) { |
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doInserts($i+1); |
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exit; |
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} elsif ($pid != undef) { |
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push @pids, $pid; |
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} |
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} |
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|
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foreach my $pid (@pids) { |
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my $x = -1; |
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do { |
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sleep(1); |
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$x = waitpid($pid, 0); |
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} until $x == $pid; |
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} |
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|
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|
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######################### |
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|
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sub doInserts { |
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my ($pid) = @_; |
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print "<$pid> Running...\n"; |
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|
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my $conn = Pg::connectdb($info); |
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if ($conn->status != PGRES_CONNECTION_OK) { |
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print "<$pid> Failed opening $info\n"; |
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print "<$pid> Abort!\n"; |
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last; |
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} |
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|
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$result = $conn->exec("BEGIN"); |
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if ($result->resultStatus ne PGRES_COMMAND_OK) { |
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print "<$pid> Error in query '$q': ". $conn->errorMessage."\n"; |
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print "<$pid> Abort!\n"; |
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last; |
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} |
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|
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print "<$pid> Inserting $numstmts records...\n"; |
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my $sql = "INSERT INTO $table ($col) VALUES"; |
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for (my $i = 0; $i < $numstmts; $i++) { |
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my $time = time; |
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$q = "$sql ('test_${pid}_${i}_$time')"; |
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$result = $conn->exec($q); |
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if ($result->resultStatus ne PGRES_COMMAND_OK) { |
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print "<$pid> Error in query '$q': ". $conn->errorMessage."\n"; |
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$conn->exec("ROLLBACK"); |
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print "<$pid> Abort!\n"; |
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last; |
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} |
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} |
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print "<$pid> done!\n"; |
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|
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$result = $conn->exec("COMMIT"); |
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if ($result->resultStatus ne PGRES_COMMAND_OK) { |
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print "<$pid> Error in query '$q': ". $conn->errorMessage."\n"; |
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$conn->exec("ROLLBACK"); |
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print "<$pid> Abort!\n"; |
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last; |
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} |
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|
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print "<$pid> Finished.\n"; |
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$control++; |
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} |
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