The lost art (Was: The VAX is running
spectre at floodgap.com
Tue Apr 7 14:53:15 CDT 2009
> Always. The major problem with the MS-BASIC garbage collection was
> with the user experience. Gates chose rapid allocation through a
> top-of-heap pointer rather using a heap walker. While there was
> enough space for allocations, allocations were fast, but reallocation
> was impossible except at the top of the heap. Once garbage collection
> starts it must proceed to completion. The user experience, with
> sufficiently large memory, was of the computer hanging. Most users
> would power cycle rather than wait.
But this wasn't true of all Microsoft BASIC derivatives. Notably the
Commodore 128 had a tremendously optimized garbage collector, allowing
collection within seconds even at 1MHz, and even being the slowest of the
Commodore 8-bit BASICs. It was night and day compared to the C64.
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- There are few problems that the liberal usage of high explosives can't cure.
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