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From: Han-Wen Nienhuys <hanwen@cs.uu.nl>
Cc: guile-devel@gnu.org
Subject: Re: lazy sweeping.
Date: Mon, 29 Jul 2002 14:40:10 +0200	[thread overview]
Message-ID: <15685.14250.901905.318924@meddo.cs.uu.nl> (raw)
In-Reply-To: <s365yyn8n9.fsf@cmm.kakpryg.net.cmm>

guile@cmm.kakpryg.net writes:
> if I remember correctly, Guile has some logic to cope with suddenly
> running out of file descriptors: it calls GC in the hope that some
> port objects are unreachable.
> 
> I guess now you don't have to nesessarily do a full GC right away,
> instead you may want to finish the sweep first and see if that helps,
> and only do a new GC if finishing the sweep haven't helped.  hmm.  so
> that's not as fiddly as I thought, and probably works as it is.
> 
> ditto for malloced memory, I guess.

Hrm. I'll have to add some more logic then -- we want to be able to
completely clean the heap, but not advance the "free mem starts here"
pointer. What would be the right behavior: doing a full sweep, or a
mark + full sweep? Or maybe just both (first the full sweep, if it
doesn't yield enough: the full mark.) 

Do you know where that function is?   I can't seem to find how a new
port is added. Oh wait. This goes through scm_must_malloc. Ok.

-- 
Han-Wen Nienhuys   |   hanwen@cs.uu.nl    | http://www.cs.uu.nl/~hanwen/


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  reply	other threads:[~2002-07-29 12:40 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-28 23:32 lazy sweeping Han-Wen
2002-07-29  0:07 ` Michael Livshin
2002-07-29  9:48   ` Han-Wen Nienhuys
2002-07-29 10:14     ` Michael Livshin
2002-07-29 12:40       ` Han-Wen Nienhuys [this message]
2002-07-29 13:00         ` Michael Livshin
2002-07-29 13:06           ` Han-Wen Nienhuys
2002-07-30 10:09   ` Han-Wen
2002-07-30 12:10     ` Michael Livshin
2002-07-29  4:31 ` Tom Lord
2002-07-29 15:17   ` Han-Wen Nienhuys
2002-07-29 13:16 ` Mikael Djurfeldt
2002-07-29 13:22   ` Han-Wen Nienhuys

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