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From bob@try.pixelated-project.org
Subject: Garbage collection works
To: alice@try.pixelated-project.org
X-TW-Pixelated-Tags: garbage
X-Pixelated-encryption-status: true
Date: Tue, 05 Apr 2015 13:52:05 +0000 (UTC)
=== ALL USERS PLEASE NOTE ========================
The garbage collector now works. In addition a new, experimental garbage
collection algorithm has been installed. With SI:%DSK-GC-QLX-BITS set to 17,
(NOT the default) the old garbage collection algorithm remains in force; when
virtual storage is filled, the machine cold boots itself. With SI:%DSK-GC-
QLX-BITS set to 23, the new garbage collector is enabled. Unlike most garbage
collectors, the new gc starts its mark phase from the mind of the user, rather
than from the obarray. This allows the garbage collection of significantly
more Qs. As the garbage collector runs, it may ask you something like "Do you
remember what SI:RDTBL-TRANS does?", and if you can't give a reasonable answer
in thirty seconds, the symbol becomes a candidate for GCing. The variable
SI:%GC-QLX-LUSER-TM governs how long the GC waits before timing out the user.
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