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arkmannj

macrumors 68000
Original poster
I might just be me, but I think my virtual memory size went up a ton with Leopard. with only Safari and Activity viewer open by VM size is 43GB !

yet I have almost 900MB of memory free.


2.4Ghz Mac Book Pro 2GB ram
 
Folks are going to find out soon the way Leopard uses virtual memory and swapping is "unique"..😉
 
this might be key to the stuttering I am seeing in dashboard and expose.

After a couple hours of use including bringing big apps in and out.
 

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Virtual memory in Leopard

I might just be me, but I think my virtual memory size went up a ton with Leopard. with only Safari and Activity viewer open by VM size is 43GB !

yet I have almost 900MB of memory free.


2.4Ghz Mac Book Pro 2GB ram

Same problem for me, Leopard allocates 32GB VM (just running Safari since reboot).
Upgraded, not a clean install though.
 
I did a clean install.

VM size is currently 45gb. Interesting. Wonder if this is just a bug in how it's retrieving the VM info or if they actually changed something "under the hood".
 
Well my VM size was 5x my free disk space and currently it is only 2.5x

See this thread where some people have explained how it works

Thanks. That helped a lot. It is curious that Leopard is so much bigger than Tiger. It seems all apps have balloned in their allocations. Must be something in the system calls...
 
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