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

[Parkin Frank - fparki]

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:   address@hidden [mailto:address@hidden
                Sent:   13 September 2002 05:08
                To:     Parkin Frank - fparki; address@hidden
                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


*********************************************************************

The information contained in this communication is
confidential, is intended only for the use of the recipient
named above, and may be legally privileged.
If the reader of this message is not the intended
recipient, you are hereby notified that any dissemination, 
distribution, or copying of this communication is strictly
prohibited.
If you have received this communication in error,
please re-send this communication to the sender and
delete the original message or any copy of it from your
computer system. Thank You.