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Postings from February 2001
Re: JWZ on s/Java/Perl/
From:
Branden
Date:
February 9, 2001 11:28
Subject:
Re: JWZ on s/Java/Perl/
Message ID:
OE14fbS3JH47R674Owg00004b4c@hotmail.com
Ken Fox wrote:
> 2. Work proportional to live data, not total data. This is hard to
> believe for a C programmer, but good garbage collectors don't have
> to "free" every allocation -- they just have to preserve the live,
> or reachable, data. Some researchers have estimated that 90% or
> more of all allocated data dies (becomes unreachable) before the
> next collection. A ref count system has to work on every object,
> but smarter collectors only work on 10% of the objects.
Does this 90/10 ratio mean that the memory usage is actually 10 times it
needs to be? (if it were even _possible_ to pack all the data without
fragmentation problems)
- Branden