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

1 files changed, 20 insertions, 0 deletions

diff --git a/benchmark/bm_vm_thread_sized_queue.rb b/benchmark/bm_vm_thread_sized_queue.rb
new file mode 100644
index 0000000000..7b9af5482b
--- /dev/null
+++ b/benchmark/bm_vm_thread_sized_queue.rb
@@ -0,0 +1,20 @@
+require 'thread'
+# on producer, one consumer
+
+n = 1_000_000
+q = Thread::SizedQueue.new(100)
+consumer = Thread.new{
+  while q.pop
+    # consuming
+  end
+}
+
+producer = Thread.new{
+  while n > 0
+    q.push true
+    n -= 1
+  end
+  q.push nil
+}
+
+consumer.join