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I want hotkey-based utilities like Quicksilver or Zooom to respond immediately. But if they have been idle for a while, they (I guess) get swapped out, and respond slowly, sometimes not even responding to the first few keystrokes I wanted to send to them.

How can I encourage such processes (i.e. chosen processes, not all processes system wide) to remain in active memory? Or, am I misunderstanding the problem?

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Maybe just get more RAM? – Daniel Beck Jan 2 '12 at 22:33
I have 8G, which is the max possible. It's sufficient for reasonable app responsiveness, but for things like Quickeys and Zooom, I don't want "reasonable"---I want "instant". – purplie Jan 3 '12 at 21:56

I do not think you can change memory management policy on userland easily. Your best bet is to raise the priority of the process.

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