Feature #17614: Improve performance Float#negative? and Float#positive?

• Status: Closed
• Assignee: -
• Target version: -

[S_H_ (Shun Hiraoka)]

Improve performance Float#negative? and Float#positive?(write in Ruby)

benchmark:

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

result:

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].

pull requests:
https://github.com/ruby/ruby/pull/4160

[S_H_ (Shun Hiraoka)]

• Description updated (diff)

[S_H_ (Shun Hiraoka)]

• Status changed from Open to Closed

Applied in changeset git|fad7908a5de4ab08367914d53780ff6518d5f552.

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Improve performance Float#positive? and Float#negative? [Feature #17614] (#4160)