how to occupy 1G of memory

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: how to occupy 1G of memory by BrowserUk (Patriarch) on Jul 12, 2010 at 11:13 UTC
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` [download] Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. RIP an inspiration; A true Folk's Guy	[reply] [d/l]
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
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]