Howard Maher wrote:
> I was simply counting the number of lines in a 2 gig file, printing to STDERR
> every 10,000 lines to indicate the program was making progress, but the
> program stopped at 12,960,000 lines read... an hour and a half later it still
> hadn't budged...
> What kind of memory
A while ago I had a weird problem on Perl for Windows.
My program exited from while() loop because of
a character in the data file which was treated as EOF.
After removing the character from the data file loop
continued up to the very end. I didn't have time to
investigate the problem and I can't s
- Original Message -
From: "Howard Maher" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, March 14, 2007 5:34 AM
Subject: Hitting a line limit while reading a file
>I was simply counting the number of lines in a 2 gig file, printing to
>STDERR every 10,000 lines to indicate the program was ma
Beautiful!!! It cuts the run time from ~43 seconds to less than 4 seconds for
one of my data files!
I knew someone out there can do a better job. For this particular purpose,
using vec() and bitwise operation instead of unpacking and packing is a much
better way.
Thank Tobias for this excellent
This one runs about 10-15 times faster on my system. Toggle $useVec to
alternate between your old version and the one that uses vec(). Please
not that vec() is big-endian. I verified that the output of both
versions are identical.
Hope that helps
Tobias
use strict;
use warnings;
my $header;
my
I believe the pack function is implemented in C so I don't know how much
faster you can write it...
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Su, Yu (Eugene)
Sent: Tuesday, March 13, 2007 3:14 PM
To: Perl-Win32-Users@listserv.ActiveState.com
Subject:
"Su, Yu (Eugene)" <[EMAIL PROTECTED]> graced perl with these words
of wisdom:
> I wrote a simple script which did the job, but it was too slow. It
> took over 40 seconds on my 5 year old PC. I wonder if there is better
> way to make it run faster.
A faster processor? :-p
Are the 40 seconds o
Hi all,
I wrote a script to update a binary data file. The file is a 2048x2048
unsigned-short array encoded in little-endian + 8K header. All values should be
even. However, there are some data corrupted with odd values. The task is to
set all odd numbers to 1.
I wrote a simple script which di
Greetings,
I have a large Win32 Perl app using Tk and lots
of other modules. It generally runs just fine
but occasionally it bombs saying that there
was an error in perl.exe.
It shows a system dump of some sort and asks
if I want to send it to Microsoft.I decline because
I doubt that anyone
Dial, Joe wrote:
>
> Hello $Bill,
> I love reading your answers to other people's problems. I hope I can
> help you.
> Microsoft announced that there is a patch to the MSVCRT.DLL which may be
> used by the perl executable.
> I don't know the windows equivalent to ldd to be sure MSVCRT.DLL is use
On Tue, 13 Mar 2007, Bill Luebkert wrote:
> My 'localtime' function output doesn't reflect DST since the Sunday
> changeover.
Jan Wrote:
>This is expected if you have the TZ environment variable set because
>Microsoft didn't release an updated MSVCRT.dll.
Works fine for me on windows... but I'm h
On Tue, 13 Mar 2007, Bill Luebkert wrote:
> My 'localtime' function output doesn't reflect DST since the Sunday
> changeover.
This is expected if you have the TZ environment variable set because
Microsoft didn't release an updated MSVCRT.dll.
If you don't use TZ, then DST _should_ be correct for
Hello $Bill,
I love reading your answers to other people's problems. I hope I can
help you.
Microsoft announced that there is a patch to the MSVCRT.DLL which may be
used by the perl executable.
I don't know the windows equivalent to ldd to be sure MSVCRT.DLL is used
by perl, but if it is, then M
My 'localtime' function output doesn't reflect DST since the Sunday changeover.
System: XP Pro; Perl B811
The earlier DST change time seems to be picked up OK by Windoze clock. There
was some mention of the table changes by Microsoft I believe and there is some
info at http://support.microsoft.c
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