benchmark/driver.rb: fully obsolete this

in favor of just using benchmark_driver.gem.

common.mk: The new `make benchmark` covers the both usages for old `make
benchmark` and old `make benchmark-each`. So `make benchmark-each` is
dropped now.

benchmark/README.md: Explain its details

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 13 insertions, 126 deletions

diff --git a/benchmark/README.md b/benchmark/README.md
index 1b0b373f7a..a5ebaf21df 100644
--- a/benchmark/README.md
+++ b/benchmark/README.md
@@ -31,19 +31,16 @@ make benchmark
 # Or compare with specific ruby binary
 make benchmark COMPARE_RUBY="/path/to/ruby --jit"
 
-# You can specify any option via $OPTS
-make benchmark OPTS="--help"
-```
+# Run vm1 benchmarks
+make benchmark ITEM=vm1
 
-## make benchmark-each
+# Run some limited benchmarks in ITEM-matched files
+make benchmark ITEM=vm1 OPTS=--filter=block
 
-`make benchmark-each` is similar to `make benchmark`, but it allows to execute
-some specific benchmarks.
+# You can specify the benchmark by an exact filename instead of using
+# the default argument: ARGS=$(srcdir)/benchmark/*$(ITEM)*.yml
+make benchmark ARGS=../benchmark/erb_render.yml
 
-```bash
-# Run vm1 benchmarks
-make benchmark-each ITEM=vm1
-
-# Match erb but exclude app_erb to run only erb_render
-make benchmark-each ITEM=erb OPTS="--exclude=app_erb"
+# You can specify any option via $OPTS
+make benchmark OPTS="--help"
 ```
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
deleted file mode 100755
index 4894584864..0000000000
--- a/benchmark/driver.rb
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/usr/bin/env ruby
-#
-# Wrapper of benchmark-driver command for `make benchmark` and `make benchmark-each`.
-#
-
-begin
-  require 'optparse'
-rescue LoadError
-  $:.unshift File.join(File.dirname(__FILE__), '../lib')
-  require 'optparse'
-end
-
-require 'shellwords'
-
-class BenchmarkDriver
-  # Run benchmark-driver prepared by `make update-benchmark-driver`
-  def self.run(*args)
-    benchmark_driver = File.expand_path('./benchmark-driver/exe/benchmark-driver', __dir__)
-    command = [benchmark_driver, *args]
-    unless system(command.shelljoin)
-      abort "Failed to execute: #{command.shelljoin}"
-    end
-  end
-
-  def initialize(opt = {})
-    @dir = opt[:dir]
-    @pattern = opt[:pattern]
-    @exclude = opt[:exclude]
-  end
-
-  def files
-    Dir.glob(File.join(@dir, '*.yml')).map{|file|
-      next if @pattern && /#{@pattern}/ !~ File.basename(file)
-      next if @exclude && /#{@exclude}/ =~ File.basename(file)
-      file
-    }.compact.sort
-  end
-end
-
-if __FILE__ == $0
-  opt = {
-    runner: 'ips',
-    output: 'compare',
-    execs: [],
-    rbenvs: [],
-    repeat: 1,
-    verbose: [],
-    dir: File.dirname(__FILE__),
-  }
-
-  parser = OptionParser.new{|o|
-    #
-    # Original benchmark-driver imitation
-    #
-    o.on('-r', '--runner [TYPE]', 'Specify runner type: ips, time, memory, once (default: ips)'){|r|
-      abort '-r, --runner must take argument but not given' if r.nil?
-      opt[:runner] = r
-    }
-    o.on('-o', '--output [TYPE]', 'Specify output type: compare, simple, markdown, record (default: compare)'){|o|
-      abort '-o, --output must take argument but not given' if o.nil?
-      opt[:output] = o
-    }
-    o.on('-e', '--executables [EXECS]',
-      "Specify benchmark one or more targets (e1::path1; e2::path2; e3::path3;...)"){|e|
-       e.split(/;/).each{|path|
-         opt[:execs] << path
-       }
-    }
-    o.on('--rbenv [VERSIONS]', 'Specify benchmark targets with rbenv version (vX.X.X;vX.X.X;...)'){|v|
-      opt[:rbenvs] << v
-    }
-    o.on('--repeat-count [NUM]', "Repeat count"){|n|
-      opt[:repeat] = n.to_i
-    }
-    o.on('-v', '--verbose', 'Verbose mode. Multiple -v options increase visilibity (max: 2)'){|v|
-      opt[:verbose] << '-v'
-    }
-
-    #
-    # benchmark/driver.rb original (deprecated, to be removed later)
-    #
-    o.on('--directory [DIRECTORY]', "Benchmark suites directory"){|d|
-      opt[:dir] = d
-    }
-    o.on('--pattern [PATTERN]', "Benchmark name pattern"){|p|
-      opt[:pattern] = p
-    }
-    o.on('--exclude [PATTERN]', "Benchmark exclude pattern"){|e|
-      opt[:exclude] = e
-    }
-  }
-
-  yamls = parser.parse!(ARGV)
-  yamls += BenchmarkDriver.new(opt).files
-
-  # Many variables in Makefile are not `foo,bar` but `foo bar`. So it's converted here.
-  execs = opt[:execs].map { |exec| ['--executables', exec] }.flatten
-  rbenv = opt[:rbenvs].map { |r| ['--rbenv', r] }
-
-  BenchmarkDriver.run(
-    *yamls, *execs, *rbenv, *opt[:verbose],
-    "--runner=#{opt[:runner]}", "--output=#{opt[:output]}",
-    "--repeat-count=#{opt[:repeat]}",
-  )
-end
diff --git a/common.mk b/common.mk
index 71cd42d42f..4732d17148 100644
--- a/common.mk
+++ b/common.mk
@@ -1113,24 +1113,19 @@ bisect-ruby: PHONY
 
 COMPARE_RUBY = $(BASERUBY)
 ITEM =
+ARGS = $(srcdir)/benchmark/*$(ITEM)*.yml
 OPTS =
 
 # You can pass several options through OPTS environment variable.
-# $ make benchmark OPTS="--help" displays more detail.
+# $ make benchmark ARGS="--help" displays more detail.
 # for example,
 #  $ make benchmark COMPARE_RUBY="ruby-trunk" OPTS="-e ruby-2.2.2"
 # This command compares trunk and built-ruby and 2.2.2
 benchmark: miniruby$(EXEEXT) update-benchmark-driver PHONY
-	$(BASERUBY) $(srcdir)/benchmark/driver.rb \
+	$(BASERUBY) -rrubygems $(srcdir)/benchmark/benchmark-driver/exe/benchmark-driver \
 	            --executables="compare-ruby::$(COMPARE_RUBY) -I$(EXTOUT)/common --disable-gem" \
 	            --executables="built-ruby::$(MINIRUBY) -r$(srcdir)/prelude --disable-gem" \
-	            --directory=$(srcdir)/benchmark $(OPTS)
-
-benchmark-each: miniruby$(EXEEXT) update-benchmark-driver PHONY
-	$(BASERUBY) $(srcdir)/benchmark/driver.rb \
-	            --executables="compare-ruby::$(COMPARE_RUBY) -I$(EXTOUT)/common --disable-gem" \
-	            --executables="built-ruby::$(MINIRUBY) -r$(srcdir)/prelude --disable-gem" \
-	            --pattern=$(ITEM) --directory=$(srcdir)/benchmark $(OPTS)
+	            $(ARGS) $(OPTS)
 
 run.gdb:
 	echo set breakpoint pending on         > run.gdb