A couple garbage collector questions
Greg Ewing
greg at cosc.canterbury.ac.nz
Tue Apr 3 00:02:51 EDT 2001
Kragen Sitaker wrote:
>
> Reference-counting exacts very heavy performance costs, no matter what
> you back it up with.
Something nobody has mentioned yet is that RC is cache-friendly,
whereas pure M&S is quite cache-hostile. This is important
now that most machine architectures are heavily reliant
on cacheing for good performance, and I believe that it is
one of the main reasons for retaining RC alongside the new
GC mechanisms.
The other reason is backwards compatibility with existing
extension modules.
--
Greg Ewing, Computer Science Dept, University of Canterbury,
Christchurch, New Zealand
To get my email address, please visit my web page:
http://www.cosc.canterbury.ac.nz/~greg
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