From: Roger Pack <rogerdpack@...>
Date: 2009-12-01T04:37:37+09:00
Subject: [ruby-core:26960] Re: Caching #to_s for immutables (and a 	possible future for constant-folding) [with patch]

> Yes. �The MRI test suite runs at 45 sec with these changes and at 53 sec
> without. �The MRI tests pass with no issues. �There is a naive test in the
> attached patch that demonstrates the improvements.

Wow that's a pretty good improvement.  I like it.

What's the speed difference for make test-all?

>> Does it break rails?
>
> I don't know yet. �I need to setup a proper Rails test environment.

Yeah that would be nice, as well as comparing speeds for the test runs
to see if it's useful.

> There maybe some native thread issues with the cache hash tables, but I did
> start adding a mutex to each one. �I have not tested on 64-bit or anything
> other that Ubunutu 9.10.

Would there be thread issues if each thread runs under the GLI?

Thanks.
-r