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I've seen other questions covering the topic of how to set the file limit on Leopard/Lion.

For example:

How to properly increase ulimit -n on Lion?
Too Many Open Files

But after reading through those I'm still not clear on how I would set the open file limit for my instance of emacs. Can anyone explain that to me?

It seems to me that ulimit -n sets the limit for the current shell. That won't work for emacs, because emacs is not a shell. Also, apparently launching emacs from the shell would allow the ulimit -n value for the shell to apply to emacs. But I would like to not invoke emacs from a shell; I'd like to just click the pretty icon.

Also there are some other ways to modify the open file limit but I am not clear on exactly where those limits apply. At least one of the limits applies to "all open files on the operating system" and for my purposes that is much too broad a brush.

I want to know how to set the file limit for a specific app. Chrome, Emacs, or whatever. In my particular case, I am interested in emacs but I guess it would be a generic solution.

Thanks.

[I tried tagging this with ulimit but could not, because I am at 101 rep right now]

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1 Answer 1

Reset to default
2

Before

enter image description here

Edit:

sudo vi /etc/launchd.conf

Append:

limit maxproc   100000  200000
limit maxfiles  100000  200000

Reboot

enter image description here

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  • Can you please verify the link to the "after" screenshot? Or just add the result as text (cut&paste from Terminal)?
    – nohillside ♦
    Commented Aug 15, 2012 at 8:16

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