diff options
Diffstat (limited to 'benchmark/bm_io_select2.rb')
-rw-r--r-- | benchmark/bm_io_select2.rb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/benchmark/bm_io_select2.rb b/benchmark/bm_io_select2.rb new file mode 100644 index 0000000000..b48651349e --- /dev/null +++ b/benchmark/bm_io_select2.rb @@ -0,0 +1,18 @@ +# IO.select performance. worst case + +ios = [] +nr = 1000000 +max = Process.getrlimit(Process::RLIMIT_NOFILE)[0] +puts "max fd: #{max} (results not apparent with <= 1024 max fd)" + +((max / 2) - 2).times do + ios.concat IO.pipe +end + +last = [ ios[-1] ] +puts "last IO: #{last[0].inspect}" + +nr.times do + IO.select nil, last +end + |