the kernel isn't psychic, it doesn't know which bit of memory your going to want next, so it takes the conservative route. also vmware forces the memory to remain active, so os x cannot manage that memory. it is possible to flush inactive memory. or it used to be, anyway.So shouldn't the OS drop inactive memory if more is called for, instead of swapping it? If I using almost all my RAM and I open up VMWare, instead of decreasing inactive memory, it seems to get swapped, making everything really slow. This is the reason I upgraded to 6gb (and I almost never have a problem with it swapping anymore, but 4gb should be plenty if this ram isn't needed any more).
Generally speaking, you want as much inactive memory as possible and as little free memory as possible. Flushing inactive memory will harm performance in most cases since it's likely that a non-zero amount of that memory will be eventually re-used.How can I go about flushing the inactive memory and would it give me any noticable performance gain?
free + inactive = available ramI agree the apple memory thing is kind of confusing and not enough info is given on apples website.
I just ordered 8 gig of ram for my machine (in my sig) because I wasn't sure if I was using up all the ram or not. (12mb free, 850mb inactive, 25 - 400mb page outs) I hope I didn't waste my money .
I usually run Maya, Unity3D, Corel Painter and XCode at once. (As well as a few others).
flushing inactive memory would decrease performance because if you open a program that was in inactive memory, it would no longer be present after you had flushed itThanks for the replies. How can I go about flushing the inactive memory and would it give me any noticable performance gain?
Cheers mate, i'll leave it alone.In general, Mac OS was written by some pretty smart computer scientists, and they have it in mind to make your computer go faster. So I'd trust their memory management setup, tbh. No worries mate; it's all normal.
Except the OP wanted to know what it was. There's no harm in asking and also asking to see what possible steps can be taken to boost performance.In general, Mac OS was written by some pretty smart computer scientists, and they have it in mind to make your computer go faster. So I'd trust their memory management setup, tbh. No worries mate; it's all normal.
More memory is always better. My 10GB RAM Mac Pro made working on it liberating as I didn't have to think about keeping an eye on memory usage. I got spoiled just keeping everything open.I was afraid of that :'(
I think I just wasted $467
Safari is one of the most bloated pieces of software in OSX. Having 10GB of ram didn't stop the beachballs. And on my MBP 4GB the same problem persists. I really hope the rumors of it moving to the browser in the near future are true.If your safari has been open for a while, it might have a memory leak, so you night need to restart it.
It could be that OS X is creating new swapfiles....when that happens the OS will freeze with the spinning pinwheel for several minutes.