RE: Problem with sort ... textutils-2.0.21 on TRU64 v5.1a

Hi Bob,
Apologies for my delayed response. 

I tried this parameter shortly after our last conversation. Unfortunately,
the only difference it made was that the process fell-over after 5 minutes
rather than 30 seconds. Temporary files were still being created. 

Would it be possible for you to debug what lib/physmem.c is returning for
memory on your system for the two library routines physmem_total() and
physmem_available()?

Sorry, I would not know how ... I am a lowly system admin and part-time Perl
hacker. 

Thanks
Frank



		-----Original Message-----
		From:	[email protected] [mailto:[email protected]]
		Sent:	13 September 2002 05:08
		To:	Parkin Frank - fparki; [email protected]
		Subject:	Re: Problem with sort ... textutils-2.0.21
on TRU64 v5.1a

		> > 4. Amount of RAM ... = 5gb.
		> 
		> Which should certainly be enough to sort an 800 MB file in
memory
		> directly without using any temporary files.  So it is
obtaining an
		> incorrect value for the amount of memory there.
		> 
		> Would it be possible for you to debug what lib/physmem.c
is returning
		> for memory on your system for the two library routines
physmem_total()
		> and physmem_available()?

		Newer versions of GNU sort have an option to specify the
amount of
		memory to use for sorting.  If you could try that on True64
then I am
		sure that with 5GB of memory that you would sort without
using any
		temporary files.  I had forgotten about that previously.
And I am
		sure if you time it there will be a large performance
improvement.

		    -S, --buffer-size=SIZE    use SIZE for main memory
buffer

		Therefore something like this?

		  sort --buffer-size=1G bigfile > bigsortedfile

		Bob


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