From: Roger Pack <rogerpack2005@...>
Date: 2008-09-03T14:31:14+09:00
Subject: Hash optimization question

Are there any libraries that overcome this problem:

(slow example)

>> Benchmark.measure { a = {:abc => :def}; 100_000.times { a.each{}}}
=> #<... @real=0.113940954208374, @utime=0.0999999999999999,
@cstime=0.0>

(fast example)

>> Benchmark.measure { a = {:abc => :def}.to_a; 100_000.times { a.each{}}}
=> #<...@real=0.0591599941253662, @utime=0.0600000000000001,
@cstime=0.0>


I.e. they optimize hashes such that their .each_xxx functions work as
fast as arrays?
My gut instinct is that this is a problem that could be overcome with
some hacking in the core, but thought I'd ask.

-=R
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