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(tak ...) benchmarks
A few months ago someone on this list published the following benchmarks
(tak 18 12 6)
On Apollo in T fixnum recklssnss low 6.1 seconds compiled
On Apollo in T fixnum recklssnss high 3.5 seconds compiled
On Apollo in T fixnum block compiled 3.0 seconds compiled
On 11/750 in T fixnum recklssnss low 5.9 seconds compiled
On 11/750 in T fixnum recklssnss high 2.4 seconds compiled
On 11/750 in T fixnum block compiled 1.9 seconds compiled
On 11/780 in T fixnum recklssnss low 3.4 seconds compiled
On 11/780 in T fixnum recklssnss high 1.7 seconds compiled
On 11/780 in T fixnum block compiled 1.26 seconds compiled
"Recklssnss" refers to a run-time switch which controls
consistency checking in function calls. Pardon the
abbreviation; I wanted it to fit the format of the
chart. "Block compiled" means that TAK was made a
local function using LABELS so that calls would be
compiled as direct jumps.
The timings were obtained by running a loop which
computed (tak 18 12 6) ten times and dividing elapsed
(wall) time by ten.
The 750 was running Unix; the 780 was running VMS.
I am doing some comparisions with a PERQ running COMMON LISP, and I
cannot reproduce anthing close to those numbers in T on a DN300 or
a DN460! Could you send me your code an tell me the configuration of
the machine you ran that on.