Compact class bits ([SqF]Report of VI4 Project for Feb '02)
Tim Rowledge
tim at sumeru.stanford.edu
Wed Feb 6 01:14:15 UTC 2002
Anthony Hannan <ajh18 at cornell.edu> is claimed by the authorities to have written:
> The VM hard codes certain compact class indexes for speed (avoiding
> special objects lookup). See Interpreter >> #isContextHeader: and its
> senders.
Good catch. So in that case I think one could profile quite adequately
without bothering to uncompact compiled & block contexts and methods -
since the time cost is more or less gone anyway. The space cost can
obviously be infered reasonably well.
tim
--
Tim Rowledge, tim at sumeru.stanford.edu, http://sumeru.stanford.edu/tim
Fractured Idiom:- APRES MOE LE DELUGE - Larry and Curly get wet
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