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Article #320

Re: epoch and lucid

#320
From: Marc Andreessen
Date: Mon, 12 Oct 1992 10:29
34 lines
1609 bytes
"Frame By Frame" writes:
> Yes, this makes epoch do fewer garbage collections, thanks.
> However, when it does eventually need to garbage collect, I'd guess it
> would have more work to do and take longer?

Yup, but on a fast processor I doubt you'll notice.  (I don't, on a
MIPS R3000 33mhz.)

> I noticed that in lucid, my gc-cons-threshold is the default 100000, and
> I don't need to raise this value for things to fly..

I can't explain, I can't explain, *da dum*, *da dum*... as I said, for
me, Epoch is quite a bit faster overall.  Ah well, the mysteries of
life.

> The garbage collection was the main problem I had. What do I lose by
> setting gc-cons-threshold high? - why isn't the default a million?

My own theory is it's a holdover from PDP-11 days, when 100K bytes was
Real Memory.  Beats me, otherwise...

> Will epoch support highlighting the current region in a similar way to
> lucid?

I doubt it, unless someone supplies some beautiful, stable, reliable
code in handy-to-use 'diff -c' format...

Marc

--
Marc Andreessen
Epoch Development Team
University of Illinois at Urbana-Champaign
marca@ncsa.uiuc.edu
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From: marca@ncsa.uiuc.edu (Marc Andreessen)
Subject: Re: epoch and lucid
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Date: Mon, 12 Oct 1992 10:29:34 GMT
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