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ruby--ruby/benchmark/io_select3.rb
k0kubun 433af16167 benchmark: drop all bm_ prefix for legacy driver.rb
benchmark/*.rb is only benchmarks now. We don't need prefixes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-10 13:08:40 +00:00

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Ruby

# IO.select performance. a lot of fd
ios = []
nr = 100
if defined?(Process::RLIMIT_NOFILE)
max = Process.getrlimit(Process::RLIMIT_NOFILE)[0]
else
max = 64
end
puts "max fd: #{max} (results not apparent with <= 1024 max fd)"
(max - 10).times do
r, w = IO.pipe
r.close
ios.push w
end
nr.times do
IO.select nil, ios
end