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From: ludovic.courtes@laas.fr (Ludovic Courtès)
Cc: guile-devel@gnu.org
Subject: Re: GC improvements
Date: Tue, 03 Jan 2006 11:16:04 +0100	[thread overview]
Message-ID: <87mzid62hn.fsf@laas.fr> (raw)
In-Reply-To: <dogn3l$cv0$3@sea.gmane.org> (Han-Wen Nienhuys's message of "Fri,  23 Dec 2005 11:29:57 +0000 (UTC)")

hanwen@byrd.xs4all.nl (Han-Wen Nienhuys) writes:

> I think that GUILE creates garbage as a side effect of evaluating
> code. If think that nothing needs to be swept, try disabling GC during
> startup, and see how well it performs memory-wise.

I did try commenting out all calls to `scm_i_gc ()' and running my
workload again.  Actually, it doesn't make a big difference: a lot of
time is still spent in `scm_i_sweep_card ()', called from
`scm_i_sweep_some_cards ()' and friends.

> For startup time, I think the best (as in: quickest) would be undump a
> previous run, instead of recalculating all the initialization on every
> run. Not only does this save on GC time, it also bypasses all evaluation.
> Isn't this what Emacs also does?

Don't know, we'd have to investigate further.  Still, that wouldn't fix
our greedy-GC problem.

Thanks,
Ludovic.


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  parent reply	other threads:[~2006-01-03 10:16 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-20 16:32 GC improvements Ludovic Courtès
2005-12-23 11:29 ` Han-Wen Nienhuys
2005-12-23 15:40   ` 1.8 [was: GC improvements] Andy Wingo
2005-12-24  0:59     ` 1.8 Kevin Ryde
2006-01-03 10:16   ` Ludovic Courtès [this message]
2006-01-04  1:03     ` GC improvements Han-Wen Nienhuys
2006-01-04 16:18       ` Ludovic Courtès
2006-01-05 14:47         ` Ludovic Courtès
2006-01-06 20:22           ` Han-Wen Nienhuys

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