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Re: Idl is greedy, once it gets some memory it will NOT release it. [message #5521 is a reply to message #5515]

Tue, 16 January 1996 00:00

kak
Messages: 16
Registered: February 1995

Junior Member

rxr@pacific.jpl.nasa.gov (Ramanujam Raghunath) writes:

> Hello all:
> I have a question on IDL's memory management. My problem could also be in the
> swap space management in the SUNOS and IRIX 5.3, but I doubt it.
> The issue is, after an array is deleted in IDL, the memory it occupied does not
> seem to be released (is the impression you get when you make an enquiry on the
> swap space from the O/S (swap -s in IRIX)) until the IDL session is exited;
> but seems to have been when you make an enquiry on the memory in IDL, using
> help, /memory.

<example session deleted>

Well, I think this feature/bug has been in IDL for UNIX workstations
from the beginning as far as I can remember. In a thread a while ago,
some people claimed that the internal IDL routines for garbage collection
and memory deallocation are flawed.
I once stumbled over a comment from RSI where they said that
this has to do with a principal uncompatibility of the respective UNIX
runtime library routines with their internal memory organization.
Can someone shed more light on this?

On the other hand, I checked this on IDL for Windows 3.1 and it seemed
to work there...

Cheers,

Karl
--
IPP, PO Box 1533 | Phone: +49-89-3299-1655 | E-Mail:
D-85740 Garching | FAX : +49-89-3299-1149 | kak@ipp-garching.mpg.de
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[Message index]

		Re: Idl is greedy, once it gets some memory it will NOT release it. By: korpela on Tue, 16 January 1996 00:00
		Re: Idl is greedy, once it gets some memory it will NOT release it. By: peter on Tue, 16 January 1996 00:00
		Re: Idl is greedy, once it gets some memory it will NOT release it. By: kak on Tue, 16 January 1996 00:00
		Re: Idl is greedy, once it gets some memory it will NOT release it. By: kspencer on Tue, 16 January 1996 00:00

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