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-rw-r--r--benchmark/bm_vm4_pipe.rb17
1 files changed, 17 insertions, 0 deletions
diff --git a/benchmark/bm_vm4_pipe.rb b/benchmark/bm_vm4_pipe.rb
new file mode 100644
index 0000000..d33c522
--- /dev/null
+++ b/benchmark/bm_vm4_pipe.rb
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+# Mesure small and plenty pipe read/write.
+# A performance may depend on GVL implementation.
+
+lmax = 1_000_000
+r, w = IO.pipe
+[Thread.new{
+ lmax.times{
+ w.write('a')
+ }
+ p "w:exit"
+}, Thread.new{
+ lmax.times{
+ r.read(1)
+ }
+ p "r:exit"
+}].each{|t| t.join}
+