I can't seem to find where all the memory is going with this script. It's not doing anything fancy in terms of coding and I'm even using undef when I'm done with variables. This script seems to end within hours of starting with "Out of Memory!" errors. 
#! /usr/bin/perl -X

use threads;

$thr1 = threads->new(\&manager);

while (1){sleep(1);}

sub initiator(){

    my @in_items = @_;
    
    my $torrent = substr(@in_items[0],2); chomp($torrent);
    my $f = substr(@in_items[1],2); chomp($f);
    my $lc = substr(@in_items[2],2); chomp($lc);
    my $priority = substr(@in_items[3],2); chomp($priority);
    my $buffer = substr(@in_items[4],2); chomp($buffer);
    my $saveas = substr(@in_items[5],2); chomp($saveas);
    
    my $a,$b,$tr_percent,$tr_time,$tr_down,$tr_up,$tr_err,$pid,$urgent
+;

    $final = "downloader.pl $buffer $saveas $priority $f";

    $status = open(PIPE,"python btdownloadheadless.py $final |") || pr
+int "Couldn't initiate download";

    while (<PIPE>){
        #print $_;
        #open(STANDARD, ">>./$buffer/DEBUG.dat"); print STANDARD $_; c
+lose(STANDARD);

        $ln = $_; chomp($ln);
        ($vb,$vn) = split(/\>\>\>/,$ln);
        ($a,$b) = split(/---> /,$_); chomp($b);
        if ($vn ne ""){ $pid = $vn; open(STANDARD2, ">>./$buffer/PID.d
+at"); print STANDARD2 "$pid"; close(STANDARD2); }

        if ($a =~ "percent done"){$tr_percent = $b;}
        if ($a =~ "time left"){$tr_time = $b;}
        if ($a =~ "download rate"){$tr_down = $b;}
        if ($a =~ "upload rate"){$tr_up = $b;}
        if ($a =~ "ERROR:"){$tr_err = $_; $tr_time = "complete!";}
        if ($tr_time eq ""){$tr_time = "Connecting...";}
        
        open(OUT, ">>./$buffer/WATCH.dat");
        print OUT "$tr_time ( % $tr_percent ) \@ $tr_down $tr_err\n";
        close(OUT);
        
        if (($tr_time =~ "complete!") || ($tr_time eq "Download Succee
+ded!")){
            sleep(1);
            print "\nTrying to end process [$buffer] ($pid)...\n";
            system("kill -s KILL $pid");
        }
    
        $v++;
    }
    
    $urgent = 0;
    open(STANDARD, ">>./$buffer/DEBUG.dat");
    print STANDARD "PIPE ENDED...";
    $err = $? & 255;
    print STANDARD "With: $err";
    print STANDARD "With: $?";
    print STANDARD "With: $status";
    close(PIPE);
    close(STANDARD);
    
    undef $a,$b,$tr_percent,$tr_time,$tr_down,$tr_up,$tr_err,$pid,$urg
+ent,$v,$err,$vb,$vn,$ln;
    undef $torrent,$lc,$f,$priority,$buffer,$saveas,$cmd,$cancel;
    undef @in_items;
}

sub manager(){
    $|++;
    print ".";
    opendir(DIR,"./acc"); @list = readdir(DIR); close(DIR);
    foreach (@list){ if ($_ =~ ".dat"){ @new_list[$q] = $_; $q++; }}
    #print @new_list;

    foreach (@new_list){
        open(READER,"./acc/$_"); @items = <READER>; close(READER);
        #print @items;
        
        $thr = threads->new(\&initiator, @items);
        
        $line = $_; chomp($line);
        #cp("./acc/$line","./$line/FORKED.dat");
        unlink("./acc/$line");
        
    }
    
    undef @list; undef @new_list;
    undef @items; undef $line;
    $q = 0;
    sleep(2);
    &manager();
}

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In reply to Oh where has my memory gone? by Anonymous Monk

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