ikarus/lab/optimize-gc.txt

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Originally: revno 104
echo '(length (s-head 10000000 s))' | time ikarus streams.ss
Ikarus Scheme (Build 2006-12-06)
Copyright (c) 2006 Abdulaziz Ghuloum
> 10000000
>
4.97 real 3.46 user 1.50 sys
After optimization: revno 105
echo '(length (s-head 10000000 s))' | time ikarus streams.ss
Ikarus Scheme (Build 2006-12-06)
Copyright (c) 2006 Abdulaziz Ghuloum
> 10000000
>
4.23 real 3.23 user 1.00 sys
As of r127:
3.79 real 3.15 user 0.63 sys
With engines (r139):
3.94 real 3.23 user 0.69 sys
Note: this is about 2% overhead.