Re: how to occupy 1G of memory

Here's a simple and efficient way:

#! perl -slw
use strict;

my $ramfile;

open RAM, '>', \$ramfile;
seek RAM, 1024**3 - 1, 0;
print RAM chr(0);
close RAM;

printf "Check ram: "; <>;

undef $ramfile;

printf "Check ram: "; <>;

__END__
c:\test>GbRamFile.pl
Check ram: 1056792k
Check ram: 6168k
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Comment on Re: how to occupy 1G of memory Download Code

Replies are listed 'Best First'.
Re^2: how to occupy 1G of memory by Anonymous Monk on Jul 13, 2010 at 06:12 UTC
can u please explain this ? specifically, what is the file you open ? and what is that calculation ? ( how it is 1 GB )	[reply]
Re^3: how to occupy 1G of memory by BrowserUk (Patriarch) on Jul 13, 2010 at 08:50 UTC
can u please explain this ? Was the other anonymonk's explanation enough?	[reply]
Re^4: how to occupy 1G of memory by Anonymous Monk on Jul 13, 2010 at 09:16 UTC
for open it is enough. for the 1G calculation ? can u pls explain further?	[reply]
Re^5: how to occupy 1G of memory by BrowserUk (Patriarch) on Jul 13, 2010 at 09:32 UTC
Re^5: how to occupy 1G of memory by Anonymous Monk on Jul 13, 2010 at 09:18 UTC
Re^3: how to occupy 1G of memory by Anonymous Monk on Jul 13, 2010 at 06:39 UTC
Its special in-memory file handle, see perldoc -f open The calculation is the number 1GB	[reply]