[#85349] [Ruby trunk Bug#14334] Segmentation fault after running rspec (ruby/2.5.0/erb.rb:885 / simplecov/source_file.rb:85) — pragtob@...
Issue #14334 has been updated by PragTob (Tobias Pfeiffer).
3 messages
2018/02/02
[#85358] Re: [ruby-cvs:69220] nobu:r62039 (trunk): compile.c: unnecessary freezing — Eric Wong <normalperson@...>
nobu@ruby-lang.org wrote:
5 messages
2018/02/03
[#85612] Why require autoconf 2.67+ — leam hall <leamhall@...>
Please pardon the intrusion; I am new to Ruby and like to pull the
6 messages
2018/02/17
[#85634] [Ruby trunk Bug#14494] [PATCH] tool/m4/ruby_replace_type.m4 use AC_CHECK_TYPES for HAVE_* macros — normalperson@...
Issue #14494 has been reported by normalperson (Eric Wong).
3 messages
2018/02/19
[#85674] [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — matz@...
Issue #13618 has been updated by matz (Yukihiro Matsumoto).
5 messages
2018/02/20
[#85686] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
— Eric Wong <normalperson@...>
2018/02/20
matz@ruby-lang.org wrote:
[#85704] Re: [Ruby trunk Feature#13618] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid
— Koichi Sasada <ko1@...>
2018/02/21
On 2018/02/20 18:06, Eric Wong wrote:
[ruby-core:85723] [Ruby trunk Bug#10212] MRI is not for lambda calculus
From:
ko1@...
Date:
2018-02-21 07:32:22 UTC
List:
ruby-core #85723
Issue #10212 has been updated by ko1 (Koichi Sasada). with [Feature #14318] ``` name ruby241 ruby250 trunk app_lc_fizzbuzz 29.140 27.950 20.056 Speedup ratio: compare with the result of `ruby241' (greater is better) name ruby250 trunk app_lc_fizzbuzz 1.043 1.453 ``` ---------------------------------------- Bug #10212: MRI is not for lambda calculus https://bugs.ruby-lang.org/issues/10212#change-70531 * Author: ko1 (Koichi Sasada) * Status: Closed * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Target version: * ruby -v: ruby 2.2.0dev (2014-08-21 trunk 47241) [x86_64-linux] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- # title is joke. I added benchmark/bm_lc_fizzbuzz.rb which solve fizz buzz program by lambda calculus. http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=47447 (This program is closly described by ["Understanding Computation"] (http://computationbook.com/) by Tom Stuart) ([Japanese translation of this book] (http://www.oreilly.co.jp/books/9784873116976/) will be published soon) The results of this program are: ``` jruby 1.7.12 (1.9.3p392) 2014-04-15 643e292 on OpenJDK 64-Bit Server VM 1.7.0_65-b32 [linux-amd64] real 0m26.648s user 0m30.091s sys 0m4.369s mruby 89e9df26819b9555fb790a16662f4ad2b9cbb2e2 real 0m27.145s user 0m27.110s sys 0m0.012s ruby 2.2.0dev (2014-08-21 trunk 47241) [x86_64-linux] real 1m54.648s user 1m54.512s sys 0m0.028s ``` It is clear that MRI is too slow. I haven't dig details, but maybe it is because of GC perforamance. Because Proc (and Env) objects are wb-unprotected, such objects are marked on every minor GC. This problem is not critical because MRI is not for lambda calculus :p but we can improve about it. -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>