From: Eric Wong <normalperson@...>
Date: 2017-10-02T19:55:22+00:00
Subject: [ruby-core:83080] Re: [Ruby trunk Feature#13958] [PATCH] Dir.empty? releases GVL

normalperson@yhbt.net wrote:
> https://bugs.ruby-lang.org/issues/13958

Updated with benchmark:
  https://80x24.org/spew/20171002183339.30098-1-e@80x24.org/raw

Benchmarks from my old Pentium M 1.6GHz:

    Benchmark results show a small degradation in single-threaded
    performance:
    Execution time (sec)
    name    trunk   built
    dir_empty_p     0.689   0.758

    Speedup ratio: compare with the result of `trunk' (greater is better)
    name    built
    dir_empty_p     0.909

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