Issue #11556 has been updated by Guo Xiang Tan.


benchmark results:
Execution time (sec)

name         |ruby 2.3.0dev (2015-10-09 trunk 52095) [x86_64-linux]|ruby 2.3.0dev (2015-09-10 test_branch 51820) [x86_64-linux]|ruby 2.3.0dev (2015-09-10 test_branch 51818) [x86_64-linux]
-------------|----------------------------------------------------:|----------------------------------------------------------:|----------------------------------------------------------:
app_strconcat|                                                0.952|                                                      1.031|                                                      0.926

@nobu Am I right to say you fixed this? I'm seeing the performance return to the previous level. :)

----------------------------------------
Bug #11556: [PERF] app_strconcat
https://bugs.ruby-lang.org/issues/11556#change-54408

* Author: Guo Xiang Tan
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0dev (2015-09-10 trunk 51820) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
total: 2 trial(s) (2 trial(s) for 1 benchmark(s))
..
-----------------------------------------------------------
benchmark results:
Execution time (sec)
name  ruby 2.3.0dev (2015-09-10 trunk 51818) [x86_64-linux]
app_strconcat 0.923

total: 2 trial(s) (2 trial(s) for 1 benchmark(s))
..
-----------------------------------------------------------
benchmark results:
Execution time (sec)
name  ruby 2.3.0dev (2015-09-10 trunk 51820) [x86_64-linux]
app_strconcat 1.045

View full graph at http://rubybench.org/ruby/ruby/commits?result_type=app_strconcat

Let me know if more information is needed :) Thanks!



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