ruby-dev summary 26662-26760

[Minero Aoki]

Hi all,

This is a summary of ruby-dev ML in these days.

[ruby-dev:26628] show information of --enable-pthreads

Hidetoshi NAGAI proposed a patch which reports that the working ruby
was compiled with --enable-pthreads option or not. Matz suggested
adding a new option, which prints all configure options.

[ruby-dev:26711] --with-static-linked-ext and require

IWATSUKI Hiroyuki reported a static linking related problem. With
--with-static-linked-ext, ruby cannot load xxx.rb when xxx.so is
static-linked:

$ ruby-1.9.0 -e '
p $".include?("openssl.so")
p require("openssl") # should require openssl.rb...
'
true
false # but not loaded.

This bug is fixed by Nobuyoshi NAKADA.

[ruby-dev:26723] reducing #coerce calls

Tadashi Saito posted a patch which reduces Fixnum#coerce calls in
numerical calculation. This patch doubles calculation speed on
average. Matz accepted this patch.

[ruby-dev:26743] zsuper with optional arguments

Hiroshi NAKAMURA reported a difference of "super" between Ruby 1.8
and 1.9:

~ % cat t
class Base
def initialize(a = 'base')
p a
end
end

class Derived < Base
def initialize(a = 'derived')
super
end
end

Derived.new(0)

~ % ruby-1.8.2 t
"derived"
~ % ruby-1.9.0 t
"base"

Matz selected 1.8 behavior.

Note that this is known issue; refer ruby-dev summary 23971-24053
([ruby-talk:108967]).


-- Minero Aoki
ruby-dev summary index: http://i.loveruby.net/en/ruby-dev-summary.html

 

[Ben Giddings]

[ruby-dev:26723] reducing #coerce calls

Tadashi Saito posted a patch which reduces Fixnum#coerce calls in
numerical calculation. This patch doubles calculation speed on
average. Matz accepted this patch.

Nice! It sounds like this is the best kind of performance optimization you
can get: rethinking a problem and reducing unnecessary overhead. I wonder
if this will eventually reduce the complaints from people who benchmark
Ruby against Foo and determine Foo is better because it's slightly faster.

Congratulations to Saito-san.

Ben