From: gamelinks007@...
Date: 2021-02-09T04:01:39+00:00
Subject: [ruby-core:102422] [Ruby master Feature#17614] Improve performance Float#negative? and Float#positive?

Issue #17614 has been reported by S_H_ (Shun Hiraoka).

----------------------------------------
Feature #17614: Improve performance Float#negative? and Float#positive?
https://bugs.ruby-lang.org/issues/17614

* Author: S_H_ (Shun Hiraoka)
* Status: Open
* Priority: Normal
----------------------------------------
Improve performance `Float#negative?` and `Float#positive?`(write in Ruby)

benchmark:
```yml
prelude: |
  flo = 4.2
benchmark:
  negative?: |
    flo.negative?
  positive?: |
    flo.positive?
loop_count: 20000000

```

result:
```bash
sh@DESKTOP-L0NI312:~/rubydev/build$ make benchmark/benchmark.yml -e COMPARE_RUBY=~/.rbenv/shims/ruby -e BENCH_RUBY=../install/bin/ruby
generating vm_call_iseq_optimized.inc
vm_call_iseq_optimized.inc unchanged
compare-ruby: ruby 3.1.0dev (2021-02-08T12:46:07Z master 4186cd6435) [x86_64-linux]
built-ruby: ruby 3.1.0dev (2021-02-08T13:12:22Z improve_float_method 0dbc6d3f5f) [x86_64-linux]
# Iteration per second (i/s)

|           |compare-ruby|built-ruby|
|:----------|-----------:|---------:|
|negative?  |     80.954M|   94.642M|
|           |           -|     1.17x|
|positive?  |     79.471M|   95.963M|
|           |           -|     1.21x|
```

`COMPARE_RUBY` is `ruby 3.1.0dev (2021-02-08T12:46:07Z master 4186cd6435) [x86_64-linux]`. BENCH_RUBY is ahead of `ruby 3.1.0dev (2021-02-08T12:46:07Z master 4186cd6435) [x86_64-linux]`.




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