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I don't have any details. Lispworks still exists ( - you could ask there?

On 26 October 2010 14:47, Juris Kalnins <> wrote:
On Tue, 26 Oct 2010 16:02:40 +0300, Paul Hudson <> wrote:

I worked for a company where we built a Lisp implementation with a hard
upper limit on GC pauses... (I wasn't involved, so I don't know the details,

Details would be interesting. Obviously turning GC completely off also would
put an upper limit on it's pauses...

Lua GC has all kinds of corner cases (such as quadratic worst case performance
of the ephemeron collection) that make it extremely unlikely to be useful for
*hard* real-time usage.