From 8068d34cfe4f74784cba29e981e2d8437ff02a9f Mon Sep 17 00:00:00 2001
From: k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 10 Jul 2018 13:05:29 +0000
Subject: Revert "benchmark/*.yml: convert from benchmark/bm_*.rb"

This reverts r63900.

Having single-execution benchmark as a normal Ruby script is preferred
by ko1. I'm not a big fan of having inconsistent benchmark formats, but
I can understand some benefits of it.

common.mk: remove obsolsted benchmark-each PHONY declaration, support
running Ruby scripts added by this commit.

README.md: follow ARGS change

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 benchmark/bm_vm_thread_pipe.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 benchmark/bm_vm_thread_pipe.rb

(limited to 'benchmark/bm_vm_thread_pipe.rb')

diff --git a/benchmark/bm_vm_thread_pipe.rb b/benchmark/bm_vm_thread_pipe.rb
new file mode 100644
index 0000000000..112a621905
--- /dev/null
+++ b/benchmark/bm_vm_thread_pipe.rb
@@ -0,0 +1,17 @@
+# Measure 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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