From: Eric Wong <normalperson@...>
Date: 2017-07-25T16:24:09+00:00
Subject: [ruby-core:82166] Re: [Ruby trunk Bug#13167] Dir.glob is 25x slower since Ruby 2.2

pdahorek@seznam.cz wrote:
> Issue #13167 has been updated by ahorek (Pavel Rosick��).
> 
> 
> https://github.com/ruby/ruby/pull/1669
> 
> ~~~
> 2.1.9        1143000 i/s
> 2.4.1          39829 i/s
> 2.5.0          40730 i/s
> 2.5.0 + patch 936338 i/s
> ~~~

Thanks.

> this patch is probably wrong, but it's a good place to start
> 
> @normalperson - could you take a look?

This is @nobu's job, since he made the original change
and knows far more about case-insensitive FSes than I do.


I think the performance on Linux is a separate problem.
The 766827 i/s you got on Ubuntu is still worse than Win32;
so I think that could be improved, possibly on all platforms.

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