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authorkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-04-30 07:16:31 +0000
committerkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-04-30 07:16:31 +0000
commit568c934373ce149ac10afcc62d41e5f44eff56ac (patch)
tree9566dd8c1b539df86085115bcd0cf46432f1149c /benchmark/bm_io_select2.rb
parentb48537cd269a9b150c4ebde2efe80a424ea0165e (diff)
* benchmark/bm_io_select.rb, benchmark/bm_io_select2.rb: New.
based on a patch from Eric Wong at [Feature #4531] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'benchmark/bm_io_select2.rb')
-rw-r--r--benchmark/bm_io_select2.rb18
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 0000000..b486513
--- /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
+