lib/benchmark.rb (measure): reduce allocations as in r47260

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 14 insertions, 10 deletions

diff --git a/ChangeLog b/ChangeLog
index 07ac44755a..37b9b39635 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Aug 24 11:09:29 2014  Eric Wong  <e@80x24.org>
+
+	* lib/benchmark.rb (measure): reduce allocations as in r47260
+
 Sun Aug 24 10:35:54 2014  Pete Higgins  <pete@peterhiggins.org>
 
 	* lib/benchmark.rb (module Benchmark): define BENCHMARK_CLOCK
diff --git a/lib/benchmark.rb b/lib/benchmark.rb
index eff6cb12ef..7c03c4a195 100644
--- a/lib/benchmark.rb
+++ b/lib/benchmark.rb
@@ -270,14 +270,22 @@ module Benchmark
     STDOUT.sync = sync unless sync.nil?
   end
 
+  # :stopdoc:
+  if defined?(Process::CLOCK_MONOTONIC)
+    BENCHMARK_CLOCK = Process::CLOCK_MONOTONIC
+  else
+    BENCHMARK_CLOCK = Process::CLOCK_REALTIME
+  end
+  # :startdoc:
+
   #
   # Returns the time used to execute the given block as a
   # Benchmark::Tms object.
   #
   def measure(label = "") # :yield:
-    t0, r0 = Process.times, Time.now
+    t0, r0 = Process.times, Process.clock_gettime(BENCHMARK_CLOCK)
     yield
-    t1, r1 = Process.times, Time.now
+    t1, r1 = Process.times, Process.clock_gettime(BENCHMARK_CLOCK)
     Benchmark::Tms.new(t1.utime  - t0.utime,
                        t1.stime  - t0.stime,
                        t1.cutime - t0.cutime,
@@ -286,14 +294,6 @@ module Benchmark
                        label)
   end
 
-  # :stopdoc:
-  if defined?(Process::CLOCK_MONOTONIC)
-    BENCHMARK_CLOCK = Process::CLOCK_MONOTONIC
-  else
-    BENCHMARK_CLOCK = Process::CLOCK_REALTIME
-  end
-  # :startdoc:
-
   #
   # Returns the elapsed real time used to execute the given block.
   #