[Boost-commit] svn:boost r78617 - trunk/libs/context/performance

Subject: [Boost-commit] svn:boost r78617 - trunk/libs/context/performance
From: oliver.kowalke_at_[hidden]
Date: 2012-05-25 11:13:21

Author: olli
Date: 2012-05-25 11:13:20 EDT (Fri, 25 May 2012)
New Revision: 78617
URL: http://svn.boost.org/trac/boost/changeset/78617

Log:
context: conditiona compilation for rdtsc - performance tests

Text files modified: 
   trunk/libs/context/performance/cycle_i386.hpp   |     2 ++                                      
   trunk/libs/context/performance/cycle_x86-64.hpp |     2 ++                                      
   trunk/libs/context/performance/performance.cpp  |     4 ++++                                    
   3 files changed, 8 insertions(+), 0 deletions(-)

Modified: trunk/libs/context/performance/cycle_i386.hpp
==============================================================================
--- trunk/libs/context/performance/cycle_i386.hpp	(original)
+++ trunk/libs/context/performance/cycle_i386.hpp	2012-05-25 11:13:20 EDT (Fri, 25 May 2012)
@@ -16,6 +16,8 @@
 #include <boost/bind.hpp>
 #include <boost/cstdint.hpp>
 
+#define BOOST_CONTEXT_CYCLE
+
 typedef boost::uint64_t cycle_t;
 
 #if _MSC_VER

Modified: trunk/libs/context/performance/cycle_x86-64.hpp
==============================================================================
--- trunk/libs/context/performance/cycle_x86-64.hpp	(original)
+++ trunk/libs/context/performance/cycle_x86-64.hpp	2012-05-25 11:13:20 EDT (Fri, 25 May 2012)
@@ -16,6 +16,8 @@
 #include <boost/bind.hpp>
 #include <boost/cstdint.hpp>
 
+#define BOOST_CONTEXT_CYCLE
+
 typedef boost::uint64_t cycle_t;
 
 #if _MSC_VER >= 1400

Modified: trunk/libs/context/performance/performance.cpp
==============================================================================
--- trunk/libs/context/performance/performance.cpp	(original)
+++ trunk/libs/context/performance/performance.cpp	2012-05-25 11:13:20 EDT (Fri, 25 May 2012)
@@ -66,6 +66,7 @@
         ctx::jump_fcontext( & fc, & fcm, 7, preserve_fpu);
 }
 
+#ifdef BOOST_CONTEXT_CYCLE
 cycle_t test_function_cycle( cycle_t ov)
 {
     boost::function< void() > fn( boost::bind( f3) );
@@ -136,6 +137,7 @@
 
     return total;
 }
+#endif
 
 #if _POSIX_C_SOURCE >= 199309L
 zeit_t test_function_zeit( zeit_t ov)
@@ -235,6 +237,7 @@
         }
         bind_to_processor( 0);
 
+#ifdef BOOST_CONTEXT_CYCLE
         {
             cycle_t ov( overhead_cycles() );
             std::cout << "overhead for rdtsc == " << ov << " cycles" << std::endl;
@@ -248,6 +251,7 @@
             res = test_function_cycle( ov);
             std::cout << "boost::function: average of " << res << " cycles per switch" << std::endl;
         }
+#endif
 
 #if _POSIX_C_SOURCE >= 199309L
         {