ruby--ruby/benchmark/io_pipe_rw.rb

# Measure uncontended GVL performance via read/write with 1:1 threading
# If we switch to M:N threading, this will benchmark something else...
r, w = IO.pipe
src = '0'.freeze
dst = String.new
i = 0
while i < 1_000_000
  i += 1
  w.write(src)
  r.read(1, dst)
end
w.close
r.close
Revert "benchmark/.yml: convert from benchmark/bm_.rb" This reverts r63900. Having single-execution benchmark as a normal Ruby script is preferred by ko1. I'm not a big fan of having inconsistent benchmark formats, but I can understand some benefits of it. common.mk: remove obsolsted benchmark-each PHONY declaration, support running Ruby scripts added by this commit. README.md: follow ARGS change git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-07-10 09:05:29 -04:00			`# Measure uncontended GVL performance via read/write with 1:1 threading`
			`# If we switch to M:N threading, this will benchmark something else...`
			`r, w = IO.pipe`
			`src = '0'.freeze`
			`dst = String.new`
			`i = 0`
			`while i < 1_000_000`
			`i += 1`
			`w.write(src)`
			`r.read(1, dst)`
			`end`
			`w.close`
			`r.close`