[EMAIL PROTECTED] wrote:
> hello all
>
> I need a fast concat solution. the following works, but it is extremely slow
> and
> it stutters. I am not replicating values, each value that is concatonated is
> unique- the following is example does not illustrate this.
>
> about the stuttering...is this a buffering issue? it stutters (pauses) in,
> what
> looks like, random increments, though the first increment is 16 -- refer to
> $count. I am running xp with Activestate 5.8.
>
>
> my $count = 0;
>
> for(0..1125000)
> {
> $pmem::arr .= "#".$anewvalue; #$anewvalue is random;
> $count++;
> print $count,"\n";
> }
>
>
> thanks in advance for all your help.
Run the below with output redirected to a file (like foo below) -
it should give you an idea of how much CPU every 1000 iterations
uses (in the file foo) and totals to the console :
> perl test.pl >foo
use strict;
use warnings;
print STDERR scalar (localtime), "\n";
my $pt0 = Win32::GetTickCount ();
my $pt1 = $pt0;
my $count = 0;
my $anewvalue = '1234567890';
for (0 .. 1125000) {
$pmem::arr .= "#" . $anewvalue; # $anewvalue is random;
$count++;
# print $count, "\n";
if ($count % 10000 == 0) {
my $pt2 = Win32::GetTickCount ();
printf "%.3f seconds\n", ($pt2 - $pt1) / 1000;
$pt1 = $pt2;
}
}
print STDERR scalar (localtime), "\n";
printf STDERR "%.3f seconds\n", (Win32::GetTickCount () - $pt0) / 1000;
print STDERR "Length of \$pmem::arr = ", length $pmem::arr, "\n";
print STDERR substr ($pmem::arr, 0, 66), "\n";
print STDERR substr ($pmem::arr, -66, 66), "\n";
package pmem;
my $arr = '';
__END__
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