Issue #12074 has been updated by k0kubun (Takashi Kokubun).

Assignee set to k0kubun (Takashi Kokubun)

----------------------------------------
Bug #12074: [PERF] bm_app_erb.rb slower 
https://bugs.ruby-lang.org/issues/12074#change-64988

* Author: tgxworld (Guo Xiang Tan)
* Status: Open
* Priority: Normal
* Assignee: k0kubun (Takashi Kokubun)
* Target version: 
* ruby -v: ruby 2.4.0dev (2016-01-02 trunk 53412)
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
Hi I'm noticing a regression on RubyBench for `bm_app_erb.rb`

http://rubybench.org/ruby/ruby/commits?result_type=app_erb&display_count=2000

Narrowed down to https://github.com/ruby/ruby/commit/32b4a8b

Results on my local machine confirms it as well:

```
total: 2 trial(s) (2 trial(s) for 1 benchmark(s))
..
-----------------------------------------------------------
benchmark results:
Execution time (sec)
name  ruby 2.4.0dev (2016-01-02 trunk 53411) [x86_64-linux]
Posting results to Web UI....
app_erb 0.614
```

```
total: 2 trial(s) (2 trial(s) for 1 benchmark(s))
..
-----------------------------------------------------------
benchmark results:
Execution time (sec)
name  ruby 2.4.0dev (2016-01-02 trunk 53412) [x86_64-linux]
Posting results to Web UI....
app_erb 0.911
```

Let me know if I can provide more information :)



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