[#56333] [CommonRuby - Feature #8723][Open] Array.any? predicate returns true for empty array. — "nurettin (Nurettin Onur TUGCU)" <onurtugcu@...>
[#56368] [ruby-trunk - Bug #8730][Open] "rescue Exception" rescues Timeout::ExitException — "takiuchi (Genki Takiuchi)" <genki@...21g.com>
2013/8/28 nobu (Nobuyoshi Nakada) <nobu@ruby-lang.org>:
[#56389] [ruby-trunk - Feature #8738][Open] Integer#single_bit? (Actually Fixnum#single_bit? and Bignum#single_bit?) — "akr (Akira Tanaka)" <akr@...>
[#56407] [ruby-trunk - misc #8741][Open] email notification on bugs.ruby-lang.org is broken — "rits (First Last)" <redmine@...>
[#56517] Re: [ruby-cvs:49638] zzak:r42496 (trunk): * lib/time.rb: [DOC] Document constants by @markijbema [Fixes GH-377] — Tanaka Akira <akr@...>
2013/8/11 <zzak@ruby-lang.org>:
[#56523] [ruby-trunk - Bug #8769][Open] [PATCH] process.c (rb_fork_internal): remove cloexec setting — "normalperson (Eric Wong)" <normalperson@...>
[#56524] [ruby-trunk - Bug #8770][Open] [PATCH] process.c: avoid EINTR from Process.spawn — "normalperson (Eric Wong)" <normalperson@...>
[#56536] [ruby-trunk - Feature #8772][Open] Hash alias #| merge, and the case for Hash and Array polymorphism — "trans (Thomas Sawyer)" <redmine@...>
[#56551] [CommonRuby - Feature #8777][Open] Process.mach_absolute_time — "tenderlovemaking (Aaron Patterson)" <tenderlove@...>
[#56567] [ruby-trunk - Feature #8780][Assigned] DBM#to_h alias for #to_hash — "zzak (Zachary Scott)" <e@...>
[#56569] [ruby-trunk - Feature #8781][Open] Use require_relative() instead of require() if possible — "ko1 (Koichi Sasada)" <redmine@...>
On Sat, Aug 17, 2013 at 07:17:50AM +0900, trans (Thomas Sawyer) wrote:
(13/08/17 13:13), Aaron Patterson wrote:
(2013/08/12 15:35), ko1 (Koichi Sasada) wrote:
(2013/08/13 2:25), drbrain (Eric Hodel) wrote:
On Tue, Aug 13, 2013 at 07:38:01AM +0900, SASADA Koichi wrote:
(2013/08/16 14:21), Aaron Patterson wrote:
On Fri, Aug 16, 2013 at 03:00:59PM +0900, SASADA Koichi wrote:
Em 16-08-2013 03:24, Aaron Patterson escreveu:
On Fri, Aug 16, 2013 at 09:35:04AM -0300, Rodrigo Rosenfeld Rosas wrote:
[#56634] [ruby-trunk - Feature #8788][Open] use eventfd on newer Linux instead of pipe for timer thread — "normalperson (Eric Wong)" <normalperson@...>
(2013/08/16 10:47), normalperson (Eric Wong) wrote:
SASADA Koichi <ko1@atdot.net> wrote:
Hi
KOSAKI Motohiro <kosaki.motohiro@gmail.com> wrote:
[#56658] [ruby-trunk - Feature #8796][Open] Use GMP to accelerate Bignum operations — "akr (Akira Tanaka)" <akr@...>
[#56672] Re: [ruby-cvs:49733] eregon:r42591 (trunk): * process.c (rb_clock_gettime): document CLOCK_REALTIME and — Tanaka Akira <akr@...>
2013/8/17 <eregon@ruby-lang.org>:
On 17 August 2013 02:52, Tanaka Akira <akr@fsij.org> wrote:
[#56746] [ruby-trunk - Bug #8803][Open] Another buffer overflow — "user021 (a s)" <user021@...>
[#56753] [ruby-trunk - Feature #8804][Open] ONCE syntax — "ko1 (Koichi Sasada)" <redmine@...>
[#56762] [ruby-trunk - Bug #8805][Open] Ruby GC::Profiler returns incorrect info on Solaris (and relatives) — "sax (Eric Saxby)" <sax@...>
[#56780] [ruby-trunk - Feature #8809][Open] Process.clock_getres — "akr (Akira Tanaka)" <akr@...>
[#56795] [ruby-trunk - Bug #8816][Open] Tempfile.new may return the same name for parallel calls — "375gnu (Hleb Valoshka)" <redmine@...>
[#56809] [ruby-trunk - Feature #8820][Open] Speed up Array#index — "trans (Thomas Sawyer)" <redmine@...>
"trans (Thomas Sawyer)" <redmine@ruby-lang.org> wrote:
[#56824] [ruby-trunk - Feature #8823][Open] Run trap handler in an independent thread called "Signal thread" — "ko1 (Koichi Sasada)" <redmine@...>
2013/8/27 ko1 (Koichi Sasada) <redmine@ruby-lang.org>:
[#56839] [ANN] Ruby Developer Meeting 20130831 — "NARUSE, Yui" <naruse@...>
Hi,
Hi,
[#56861] [ruby-trunk - Feature #3620] Add Queue, SIzedQueue and ConditionVariable implementations in C in addition to ruby ones — "ko1 (Koichi Sasada)" <redmine@...>
"ko1 (Koichi Sasada)" <redmine@ruby-lang.org> wrote:
[#56866] [ruby-trunk - Feature #8834][Open] Kernel#load_relative — "sawa (Tsuyoshi Sawada)" <sawadatsuyoshi@...>
[#56890] [ruby-trunk - Feature #8839][Open] Class and module should return the class or module that was opened — "headius (Charles Nutter)" <headius@...>
[#56894] [ruby-trunk - Feature #8840][Open] Yielder#state — "marcandre (Marc-Andre Lafortune)" <ruby-core@...>
[#56911] [ruby-trunk - Feature #8846][Open] Publicize Module#include — "matsuda (Akira Matsuda)" <ronnie@...>
[ruby-core:56427] [ruby-trunk - Bug #8012][Assigned] Performance degradation in 2.0.0p0
Issue #8012 has been updated by naruse (Yui NARUSE).
Status changed from Open to Assigned
Assignee set to ko1 (Koichi Sasada)
Priority changed from High to Normal
Target version set to current: 2.1.0
----------------------------------------
Bug #8012: Performance degradation in 2.0.0p0
https://bugs.ruby-lang.org/issues/8012#change-40959
Author: ram (Munagala Ramanath)
Status: Assigned
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category:
Target version: current: 2.1.0
ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]
Backport:
$ ruby -v
ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-linux]
I'm running a simple CPU intensive benchmark:
puts (0..11).to_a.permutation.inject(0) { |m, _| m += 1 }
This takes around 158s with 1.9.3 and 200s with 2.0.0p0 which seems
like a substantial degradation.
Running with -rprofile shows a large number of calls to
"nil#" in 2.0.0p0 which are absent in 1.9.3
Please see the thread in http://www.ruby-forum.com/topic/4411570#new
for more details.
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