[#80974] [Ruby trunk Feature#13517] [PATCH] reduce rb_mutex_t size from 160 to 80 bytes on 64-bit — ko1@...
Issue #13517 has been updated by ko1 (Koichi Sasada).
4 messages
2017/05/02
[#81024] Re: [Ruby trunk Feature#13517] [PATCH] reduce rb_mutex_t size from 160 to 80 bytes on 64-bit
— SASADA Koichi <ko1@...>
2017/05/07
sorry for late response.
[#80996] [Ruby trunk Feature#13544] Allow loading an ISeqs sequence directly from a C extension without requiring buffer is in an RVALUE — sam.saffron@...
Issue #13544 has been reported by sam.saffron (Sam Saffron).
3 messages
2017/05/04
[#81016] [Ruby trunk Bug#13526] Segmentation fault at 0x0055c2e58e8920 ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] — s.wanabe@...
Issue #13526 has been updated by wanabe (_ wanabe).
3 messages
2017/05/07
[#81048] Re: [ruby-cvs:65788] normal:r58614 (trunk): rb_execution_context_t: move stack, stack_size and cfp from rb_thread_t — SASADA Koichi <ko1@...>
It causes compile error on raspi 3.
3 messages
2017/05/09
[#81201] Re: [ruby-cvs:65935] normal:r58761 (trunk): test/test_extilibs.rb: do not check the existence of fiddle — "U.NAKAMURA" <usa@...>
Hi, Eric
4 messages
2017/05/16
[#81202] Re: [ruby-cvs:65935] normal:r58761 (trunk): test/test_extilibs.rb: do not check the existence of fiddle
— Eric Wong <normalperson@...>
2017/05/16
"U.NAKAMURA" <usa@garbagecollect.jp> wrote:
[#81427] Fwd: [ruby-changes:46809] normal:r58924 (trunk): test for IO.copy_stream CPU usage (r58534) — SASADA Koichi <ko1@...>
Hi,
6 messages
2017/05/28
[#81428] Re: Fwd: [ruby-changes:46809] normal:r58924 (trunk): test for IO.copy_stream CPU usage (r58534)
— Eric Wong <normalperson@...>
2017/05/28
SASADA Koichi <ko1@atdot.net> wrote:
[ruby-core:81135] [Ruby trunk Feature#13561] Optimize ERB string concatenation
From:
takashikkbn@...
Date:
2017-05-13 10:29:21 UTC
List:
ruby-core #81135
Issue #13561 has been reported by k0kubun (Takashi Kokubun).
----------------------------------------
Feature #13561: Optimize ERB string concatenation
https://bugs.ruby-lang.org/issues/13561
* Author: k0kubun (Takashi Kokubun)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
Using opt_ltlt instruction instead of opt_send_without_block for #concat, we can bypass method call and use rb_str_concat directly. So I want ERB to generate #<<.
### Benchmark
With bm_app_erb's erb template and its rendering benchmark like this,
~~~ ruby
require 'benchmark/ips'
Benchmark.ips do |x|
title = "hello world!"
content = "hello world!\n" * 10
x.report('concat') do
_erbout = String.new; _erbout.concat "<html>\n <head> "
; _erbout.concat(( title ).to_s); _erbout.concat " </head>\n <body>\n <h1> "
; _erbout.concat(( title ).to_s); _erbout.concat " </h1>\n <p>\n "
; _erbout.concat(( content ).to_s); _erbout.concat "\n </p>\n </body>\n</html>\n"
; _erbout.force_encoding(__ENCODING__)
end
x.report('<<') do
_erbout = String.new; _erbout.<< "<html>\n <head> "
; _erbout.<<(( title ).to_s); _erbout.<< " </head>\n <body>\n <h1> "
; _erbout.<<(( title ).to_s); _erbout.<< " </h1>\n <p>\n "
; _erbout.<<(( content ).to_s); _erbout.<< "\n </p>\n </body>\n</html>\n"
; _erbout.force_encoding(__ENCODING__)
end
x.compare!
end
~~~
template rendering will be 1.77x faster.
~~~
Calculating -------------------------------------
concat 301.067k (賊 9.1%) i/s - 1.510M in 5.056566s
<< 533.025k (賊11.3%) i/s - 2.654M in 5.042675s
Comparison:
<<: 533024.6 i/s
concat: 301066.7 i/s - 1.77x slower
~~~
### Patch
https://github.com/ruby/ruby/pull/1612
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