[#27003] [Bug #2422] splat operator fails on array of 1 element — Raul Parolari <redmine@...>

Bug #2422: splat operator fails on array of 1 element

12 messages 2009/12/02

[#27025] [Backport #2431] StringIO#{gets,readlines} with "" (paragraph mode) trims last "\n" — Hiroshi NAKAMURA <redmine@...>

Backport #2431: StringIO#{gets,readlines} with "" (paragraph mode) trims last "\n"

8 messages 2009/12/04

[#27086] [Feature #2454] OpenSSL has no maintainer — Yui NARUSE <redmine@...>

Feature #2454: OpenSSL has no maintainer

16 messages 2009/12/07

[#27120] #to_enum ignores block? — Roger Pack <rogerdpack@...>

Is #to_enum ignoring its block expected?

11 messages 2009/12/09

[#27135] better GC? — Roger Pack <rogerdpack@...>

Could I put in a small plea for a better GC?

56 messages 2009/12/10
[#27136] Re: better GC? — Yukihiro Matsumoto <matz@...> 2009/12/11

Hi,

[#27476] Re: better GC? — Paul Brannan <pbrannan@...> 2010/01/07

On Fri, Dec 11, 2009 at 09:07:16AM +0900, Yukihiro Matsumoto wrote:

[#27477] Re: better GC? — Eero Saynatkari <ruby-ml@...> 2010/01/07

Excerpts from Paul Brannan's message of Thu Jan 07 21:53:34 +0200 2010:

[#27563] Re: better GC? — Brent Roman <brent@...> 2010/01/12

[#27199] [Backport #2488] thread usage can result in bad HANDLE — Roger Pack <redmine@...>

Backport #2488: thread usage can result in bad HANDLE

12 messages 2009/12/16

[#27286] [Bug #2515] Array#select! — Roger Pack <redmine@...>

Bug #2515: Array#select!

17 messages 2009/12/22

[#27327] [Bug #2531] Ruby 1.8.7-p248 fails to cross-compile same version — Luis Lavena <redmine@...>

Bug #2531: Ruby 1.8.7-p248 fails to cross-compile same version

9 messages 2009/12/25

[#27360] [Feature #2542] URI lib should be updated to RFC 39886 — Marc-Andre Lafortune <redmine@...>

Feature #2542: URI lib should be updated to RFC 39886

15 messages 2009/12/31

[ruby-core:26978] Re: Caching #to_s for immutables (and a possible future for constant-folding) [with patch v2]

From: Yusuke ENDOH <mame@...>
Date: 2009-12-01 17:19:33 UTC
List: ruby-core #26978
Hi,

2009/12/1 Kurt Stephens <ks@kurtstephens.com>:
>  I fixed issues uncovered by running make test-all.  There were a few tests
> and modules that assumed Symbol#to_s was mutable -- #method_missing appears
> to be a hot-bed for this assumption.  There were 7 common failures between
> the patched code and the svn trunk:
>
> WITHOUT THE PATCH:
>
> real    5m19.335s
> user    2m15.804s
> sys     0m35.850s
>
> WITH THE PATCH:
>
> real    4m37.127s
> user    1m51.243s
> sys     0m33.454s
>
> Approx 14% faster.


This is really interesting result, but the impact of the spec change seems
not to be small.  I guess that it may be acceptable for Ruby 2.0, but NG
for 1.8 and 1.9.

How about if #to_s returns, instead of a frozen String itself, a mutable
String that is duplicated from the cached frozen String?  Become less
effective than now?

-- 
Yusuke ENDOH <mame@tsg.ne.jp>

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