* common.mk (rdoc-bench): add a benchmark rule

  using RDoc. Generate all rdoc related files
  (same as `make rdoc') in temporary directory
  and remove them. Excecution time, GC::Profiler
  and results of GC.stat are printed.
* tool/rdocbench.rb: added for `rdoc-bench'.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 0 deletions

diff --git a/tool/rdocbench.rb b/tool/rdocbench.rb
new file mode 100644
index 0000000000..db5e0bebf2
--- /dev/null
+++ b/tool/rdocbench.rb
@@ -0,0 +1,21 @@
+
+require 'rdoc/rdoc'
+require 'tmpdir'
+require 'benchmark'
+require 'pp'
+
+Dir.mktmpdir('rdocbench-'){|d|
+  dir = File.join(d, 'rdocbench')
+  args = ARGV.dup
+  args << '--op' << dir
+
+  GC::Profiler.enable
+  Benchmark.bm{|x|
+    x.report('rdoc'){
+      r = RDoc::RDoc.new
+      r.document args
+      GC::Profiler.report
+      pp GC.stat
+    }
+  }
+}