Ruby Issue Tracking System

11/05/2023

07:35 PM Ruby master Bug #19989: Fix refinement refine performance

> By fixing this, we could improve refinement performance and encourage more adoption since refinements are a powerfu... ahorek (Pavel Rosický)

09/27/2023

05:09 PM Ruby master Bug #19875: Ruby 3.0 -> 3.1 Performance regression in String#count

I think if the platform support is sufficient, there are multiple places where this feature could be beneficial. Even... ahorek (Pavel Rosický)

09/20/2023

12:28 AM Ruby master Bug #19875: Ruby 3.0 -> 3.1 Performance regression in String#count

@Freaky here's an alternative approach https://godbolt.org/z/zWhTYv8x5
your version with __attribute__((target)) ... ahorek (Pavel Rosický)

03/21/2022

12:51 AM Ruby master Bug #18651 (Closed): oob access in CP51932 -> CP50220 transcoder

Hello,
while working on a port of Japanese transcoder, I found a potential out of bounds access:
https://github.com... ahorek (Pavel Rosický)

12/11/2021

02:07 PM Ruby master Feature #14794: Primitive arrays (Ruby 3x3)

thanks for your interest @mame!
btw I found a bug in pypy which leads to a slow performance in this benchmark which ... ahorek (Pavel Rosický)

08/11/2020

02:40 PM Ruby master Bug #17114: Float is not properly kept as integer when integer is added without space

Hi, it's not a bug. +-1 is a precision argument.
```
irb> 12.34.floor(-1)
=> 10
irb> 12.34.floor(+1)
=> 12.3
... ahorek (Pavel Rosický)

07/29/2020

01:57 PM Ruby master Bug #17057 (Closed): CGI different behaviour with C vs Ruby version

```
irb(main):001:0> require 'cgi' # don't load a native extension
irb(main):002:0> CGI.unescapeHTML("\xFF&")
=> A... ahorek (Pavel Rosický)

01/10/2020

02:12 PM Ruby master Misc #16487: Potential for SIMD usage in ruby-core

> use __target__ attributes
thanks for the links, very helpful
> It's unfortunate the C compiler cannot do this... ahorek (Pavel Rosický)

11:35 AM Ruby master Misc #16487: Potential for SIMD usage in ruby-core

> Could you extend on that ? I'm not sure I understand what you mean here.
for maximum portability, you should use... ahorek (Pavel Rosický)

05:09 AM Ruby master Misc #16487: Potential for SIMD usage in ruby-core

> Do you have any practical applications whose performance is significantly improved by the SIMD hacks? I'm unsure ab... ahorek (Pavel Rosický)