[comp.sys.mac.system] another dumb question concerning memory allocation

nedludd@ut-emx.uucp (whoever) (11/01/90)

I don't get it:  the "about finder" thing says that my *largest*
(not total, but largest) memory block available is 1800K, but the
damn computer won't let me boot up a 1500K program--not enough
memory.  What gives?  What, I say, what am I doing wrong?

The particulars:  IIci, trying to run PageMaker 4.00, buttloads of
various cdevs and inits (but why should this matter:  they're all
in the system allocation, right?), 4 megs of memory, &c.

cheers, from
charles s. geiger, esq.
-- 
I am, most sincerely,
charles s. geiger, esq.

"Down with all kings but King Ludd" -- Byron

c3ar@zaphod.uchicago.edu (Walter C3arlip) (11/01/90)

In article <38948@ut-emx.uucp> nedludd@ut-emx.uucp (whoever) writes:
>I don't get it:  the "about finder" thing says that my *largest*
>(not total, but largest) memory block available is 1800K, but the
>damn computer won't let me boot up a 1500K program--not enough
>memory.  What gives?  What, I say, what am I doing wrong?
>
>The particulars:  IIci, trying to run PageMaker 4.00, buttloads of
>various cdevs and inits (but why should this matter:  they're all
>in the system allocation, right?), 4 megs of memory, &c.
>

This is not such a dumb question.  I find that on my IIci I sometimes
cannot run some of my programs at all!  Usually they run fine, but
sometimes after running other programs I'll try to start a program and get
that sme message "not enough memory" even though no other applications are
running! 

So what is happening?  Why does memory dissapear?  Does the system itself
fragment memory?  It certainly seems odd to me and I'd love to hear an
explanation!

--Walter
_____________________________________________________________________________
Walter Carlip 				**** c3ar@finite.chi.il.us ****
(the "3" is invisible)    **** c3ar%finite.chi.il.us@gargoyle.uchicago.edu ****
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