[#78949] [Ruby trunk Feature#13095] [PATCH] io.c (rb_f_syscall): remove deprecation notice — kosaki.motohiro@...
Issue #13095 has been updated by Motohiro KOSAKI.
3 messages
2017/01/03
[#78997] [Ruby trunk Bug#13110] Byte-based operations for String — shugo@...
Issue #13110 has been updated by Shugo Maeda.
3 messages
2017/01/06
[#79228] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150] — Eric Wong <normalperson@...>
naruse@ruby-lang.org wrote:
5 messages
2017/01/23
[#79511] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150]
— Eric Wong <normalperson@...>
2017/02/13
Eric Wong <normalperson@yhbt.net> wrote:
[#79518] Re: [ruby-cvs:64576] naruse:r57410 (trunk): Prevent GC by volatile [Bug #13150]
— Nobuyoshi Nakada <nobu@...>
2017/02/13
On 2017/02/13 10:04, Eric Wong wrote:
[#79298] [Ruby trunk Bug#13085][Assigned] io.c io_fwrite creates garbage — nobu@...
Issue #13085 has been updated by Nobuyoshi Nakada.
3 messages
2017/01/29
[#79337] Re: [ruby-changes:45397] normal:r57469 (trunk): io.c: recycle garbage on write — SASADA Koichi <ko1@...>
Eric:
4 messages
2017/01/31
[#79352] Re: [ruby-changes:45397] normal:r57469 (trunk): io.c: recycle garbage on write
— Eric Wong <normalperson@...>
2017/01/31
SASADA Koichi <ko1@atdot.net> wrote:
[ruby-core:79358] [Ruby trunk Bug#8012][Closed] Performance degradation in 2.0.0p0
From:
ko1@...
Date:
2017-01-31 09:36:02 UTC
List:
ruby-core #79358
Issue #8012 has been updated by Koichi Sasada.
Status changed from Assigned to Closed
Please reopen it if you find this issue remaining.
----------------------------------------
Bug #8012: Performance degradation in 2.0.0p0
https://bugs.ruby-lang.org/issues/8012#change-62783
* Author: Munagala Ramanath
* Status: Closed
* Priority: Normal
* Assignee: Koichi Sasada
* Target version: 2.2.0
* 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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