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Re: Does a larger gc-cons-threshold mean a faster Emacs?


From: Kevin A. Burton
Subject: Re: Does a larger gc-cons-threshold mean a faster Emacs?
Date: 28 Jul 2002 16:44:06 -0700
User-agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/21.2

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"Eli Zaretskii" <address@hidden> writes:

> > From: address@hidden
> > Date: 26 Jul 2002 18:17:30 -0700
> > 
> > This would lead me to believe that setting this to a large value would:
> > 
> > 1. Take up a lot of memory
> > 2. Increase the perceived Emacs speed
> > 
> > Right now I have it set to :
> > 
> > (setq gc-cons-threshold (* 8192 8192))
> > 
> > Which seems to yield decent speed (though Emacs uses 50M)
> 
> Not exactly: it also makes each GC significantly slower (in my experience).
> With the default threshold, each GC is over very quickly (on a decent
> machine).
<snip/>

The problem is that the GC happens synchronously while running emacs.  I have
increased the gc-cons-threshold and at the same time installed an idle timer to
run GC in the background... :)

Kevin

- -- 
Kevin A. Burton ( address@hidden, address@hidden, address@hidden )
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