Welcome to the MacNN Forums.

atomised · May 28, 2005, 12:36 AM

hi all

a question: in os9 and earlier all of us would have spent some time tweeking with virtual memory.

am i right in thinking that there is no easy manager of memory in osx?

i seem to remember way back when osx was introduced that there was some conversation on it going bye bye...and the memory 'self managing'.

sorry being a bit vague but if somebody knows more that would be great!

Chuckit · May 28, 2005, 12:45 AM

Virtual memory in OS 9 was tacked on and not really very good. OS X has intelligent memory management built into the kernel. Handling memory the awful way OS 9 did is not even an option.

atomised · May 28, 2005, 01:00 AM

mmm, ta

i sorta thought that was the case, though on virtual memory it was nice to be able to individually tweek when the case arrived...

the reason i ask is i was having a toast issue that i had been posting questions in the applications threads. part of my issue has been toast telling me it had not enough memory to complete a burn. so it seemed logical to define if i actually could divert memory to specific apps.

ta

Chuckit · May 28, 2005, 01:06 AM

If it doesn't have enough memory in OS X, I doubt it would have in OS 9 either. OS X's memory management is at least no worse than OS 9's. You couldn't really "divert memory to specific apps" in OS 9, per se. You could quit all your apps and then run just one with a high memory allocation, but you can quit all your apps in OS X too.

analogika · May 28, 2005, 02:36 AM

On the Toast issue...two questions:

You *are* using an OS X-native version of Toast, yes? Classic versions cannot possibly work.

How much free space do you have on your hard drive?

atomised · May 28, 2005, 06:20 AM

6.0.9 version with about 100gb of free space and 512 ram, that's whay i've found it odd (and why i was thinking of the ol' memory management...).

odd!

ta

eevyl · May 28, 2005, 08:04 AM

More probably is that Toast is warning about low cache memory of the burner. Check out those at the preferences dialog if I recall correctly.

Big Mac · May 28, 2005, 08:12 AM

Originally Posted by atomised

6.0.9 version with about 100gb of free space and 512 ram, that's whay i've found it odd (and why i was thinking of the ol' memory management...).

odd!

ta

To be certain, you're not dealing with a virtual memory issue. OS X knows memory management, fo' sho. Memory allocation in the classic Mac OS was its third worst attribute (behind the lack of protected memory and preemptive multitasking), and at select moments, it was the worst aspect of the classic OS.

msuper69 · May 28, 2005, 12:19 PM

Originally Posted by Chuckit

... OS X's memory management is at least no worse than OS 9's....

You are kidding, right?

atomised · May 28, 2005, 07:37 PM

Originally Posted by eevyl

More probably is that Toast is warning about low cache memory of the burner. Check out those at the preferences dialog if I recall correctly.

hmmm, not so sure. i have gone into the toast preferences a couple of times but have seen nothing of cache etc...

if you know where they are that would be great as its driving me crazy!