Snow Leopard 64bit inactive memory

[talguy]

I have 4gb of ram in my MBP and am forcing snow leopard to boot into 64-bit mode by changing the one property in my com.apple.Boot.plist. I have noticed that if I keep my computer on for a couple of hours that over 2gb of my memory is declared inactive. The activity monitor does not show what is taking up so much memory on my computer. Has anyone been experiencing this problem and if so how would I be able to free up all this inactive memory so that my computer continues to run smoothly like it does when I do a restart.

 

[gr8tfly]

Inactive memory is the same as free, as far as an application is concerned. It caches recently active data, but it's available for any application should it need it.

http://support.apple.com/kb/HT1342?viewlocale=en_US

 

[talguy]

thanks. it just seems that my computer begins to slow down when there is an extreme amount of inactive memory and now free memory by my activity monitor's graph

 

[gr8tfly]

thanks. it just seems that my computer begins to slow down when there is an extreme amount of inactive memory and now free memory by my activity monitor's graph

Take a look at the number/size of pageouts vs. pageins. If they're relatively high, that could be an indication of needing more physical RAM. btw: How much do you have?