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From: Chong Yidong <cyd@gnu.org>
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Subject: Re: Memory Usage On Emacs 24 Lucid Linux:
Date: Thu, 15 Mar 2012 16:19:01 +0800
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Cc: "T.V. Raman" <tv.raman.tv@gmail.com>, emacs-devel@gnu.org
To: Stefan Monnier <monnier@iro.umontreal.ca>
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Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> I've removed these from my shell environemnt, and Emacs 24 is
>> running happily with my full Emacs environment loaded.
>
> So the right fix might be for shell.el to allocate its history-ring
> more lazily.

Implemented in trunk.  (Though if HISTSIZE is huge and the user really
does have gigabytes of shell history stored on disk, Emacs still loads
it all; that can't really be helped).