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Date: Tue, 04 Jun 2002 02:34:00 -0000
From: Marc Espie <espie@quatramaran.ens.fr>
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To: rth@redhat.com
Subject: Re: Speeding up GC
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In-Reply-To: <20020603180553.A13829@redhat.com>
References: <j47klg8pfy.fsf@informatik.hu-berlin.de>
Organization: Ecole Normale Superieure (quatramaran)
Cc: gcc@gcc.gnu.org
X-SW-Source: 2002-06/txt/msg00179.txt.bz2

In article <20020603180553.A13829@redhat.com> you write:
>
>A better way to do this is to actually compact the GC arena
>and mark the pages read-only.  If the objects are modified,
>the SIGSEGV handler marks the page read-write again and flags
>the page as having been modified.

Isn't that a bit expensive ? getting through a SEGV and a signal-handler
is not especially fast on most OSes.