[#84867] [Ruby trunk Bug#14357] thread_safe tests suite segfaults — v.ondruch@...

Issue #14357 has been reported by vo.x (Vit Ondruch).

11 messages 2018/01/15

[#84980] [Ruby trunk Feature#13618][Assigned] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — hsbt@...

Issue #13618 has been updated by hsbt (Hiroshi SHIBATA).

10 messages 2018/01/23
[#85012] Re: [Ruby trunk Feature#13618][Assigned] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — Eric Wong <normalperson@...> 2018/01/23

hsbt@ruby-lang.org wrote:

[ruby-core:85228] [Ruby trunk Bug#14418] ruby 2.5 slow regexp execution

From: mail@...
Date: 2018-01-29 16:56:34 UTC
List: ruby-core #85228
Issue #14418 has been updated by sos4nt (Stefan Schテシテ殕er).


> I can't paste the code here corectly.

You have to insert a blank line before `~~~`

----------------------------------------
Bug #14418: ruby 2.5 slow regexp execution
https://bugs.ruby-lang.org/issues/14418#change-69976

* Author: jakub.wozny (Jakub Woナコny)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.5
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
I have simple regexp that performing very slow.
~~~ ruby
"fuテ歟all "*20 =~ /^([\S\s]{1000})/i
~~~

It works fast if I remove ```\i``` flag. I figured out that is also depends on string length or on quantifier value (in this case it is ```{1000}```).
When you remove ```テ歔`` form the string it also works fast.

I tested on 2.3.1, 2.4.3 and 2.5.0.

I'm not sure it is a bug or it just works that way.



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