I'm doing some micro-optimizations on my rb-tree implementation. One thing
I'm testing is inserting the entire contents of /usr/share/dict/words.
It's heavily dominated by structure-mutation code.
Under 5.3.1, I see the following times:
Timing construction of /usr/share/dict/words:
inserting 235886 words at the end...
cpu time: 446 real time: 446 gc time: 0
dropping all those words...
cpu time: 355 real time: 374 gc time: 0
inserting 235886 words at the front...
cpu time: 437 real time: 436 gc time: 0
Out of curiosity, I wanted to see how fast this ran under Racket under git
(8d30f173). Under that version, I'm seeing:
Timing construction of /usr/share/dict/words:
inserting 235886 words at the end...
cpu time: 195 real time: 195 gc time: 0
dropping all those words...
cpu time: 203 real time: 217 gc time: 0
inserting 235886 words at the front...
cpu time: 200 real time: 199 gc time: 0
So I don't know what exactly happened between then and now, but whatever it
is, keep doing it! :)
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