From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/benchmark/bm_vm_thread_pipe.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 jni/ruby/benchmark/bm_vm_thread_pipe.rb

(limited to 'jni/ruby/benchmark/bm_vm_thread_pipe.rb')

diff --git a/jni/ruby/benchmark/bm_vm_thread_pipe.rb b/jni/ruby/benchmark/bm_vm_thread_pipe.rb
new file mode 100644
index 0000000..272d231
--- /dev/null
+++ b/jni/ruby/benchmark/bm_vm_thread_pipe.rb
@@ -0,0 +1,17 @@
+# Mesure small and plenty pipe read/write.
+# A performance may depend on GVL implementation.
+
+lmax = 100_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}
+
-- 
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