[DEV] add v1.66.0

libs/coroutine2/performance/segmented/Jamfile.v2

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+
+#          Copyright Oliver Kowalke 2014.
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# For more information, see http://www.boost.org/
+
+import common ;
+import feature ;
+import indirect ;
+import modules ;
+import os ;
+import toolset ;
+
+project boost/coroutine2/performance/segmented_stack
+    : requirements
+      <library>/boost/chrono//boost_chrono
+      <library>/boost/coroutine//boost_coroutine
+      <library>/boost/program_options//boost_program_options
+      <segmented-stacks>on
+      <toolset>gcc,<segmented-stacks>on:<cxxflags>-fsplit-stack
+      <toolset>gcc,<segmented-stacks>on:<cxxflags>-DBOOST_USE_SEGMENTED_STACKS
+      <toolset>clang,<segmented-stacks>on:<cxxflags>-fsplit-stack
+      <toolset>clang,<segmented-stacks>on:<cxxflags>-DBOOST_USE_SEGMENTED_STACKS
+      <link>static
+      <threading>multi
+      <cxxflags>-DBOOST_DISABLE_ASSERTS
+      <optimization>speed
+      <variant>release
+    ;
+
+alias sources
+   : ../bind_processor_aix.cpp
+   : <target-os>aix
+   ;
+
+alias sources
+   : ../bind_processor_freebsd.cpp
+   : <target-os>freebsd
+   ;
+
+alias sources
+   : ../bind_processor_hpux.cpp
+   : <target-os>hpux
+   ;
+
+alias sources
+   : ../bind_processor_linux.cpp
+   : <target-os>linux
+   ;
+
+alias sources
+   : ../bind_processor_solaris.cpp
+   : <target-os>solaris
+   ;
+
+alias sources
+   : ../bind_processor_windows.cpp
+   : <target-os>windows
+   ;
+
+explicit sources ;
+
+exe performance_create_segmented
+   : sources
+     performance_create_segmented.cpp
+   ;
+
+exe performance_switch
+   : sources
+     performance_switch.cpp
+   ;

libs/coroutine2/performance/segmented/performance_create_segmented.cpp

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+
+//          Copyright Oliver Kowalke 2014.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+#include <cstdlib>
+#include <iostream>
+#include <stdexcept>
+
+#include <boost/chrono.hpp>
+#include <boost/coroutine2/all.hpp>
+#include <boost/cstdint.hpp>
+#include <boost/program_options.hpp>
+
+#include "../bind_processor.hpp"
+#include "../clock.hpp"
+#include "../cycle.hpp"
+
+typedef boost::coroutines2::segmented_stack           stack_allocator;
+typedef boost::coroutines2::coroutine< void >   coro_type;
+
+boost::uint64_t jobs = 1000;
+
+void fn( coro_type::push_type & c)
+{ while ( true) c(); }
+
+duration_type measure_time( duration_type overhead)
+{
+    stack_allocator stack_alloc;
+
+    time_point_type start( clock_type::now() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        coro_type::pull_type c( stack_alloc, fn);
+    }
+    duration_type total = clock_type::now() - start;
+    total -= overhead_clock(); // overhead of measurement
+    total /= jobs;  // loops
+
+    return total;
+}
+
+# ifdef BOOST_CONTEXT_CYCLE
+cycle_type measure_cycles( cycle_type overhead)
+{
+    stack_allocator stack_alloc;
+
+    cycle_type start( cycles() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        coro_type::pull_type c( stack_alloc, fn);
+    }
+    cycle_type total = cycles() - start;
+    total -= overhead; // overhead of measurement
+    total /= jobs;  // loops
+
+    return total;
+}
+# endif
+
+int main( int argc, char * argv[])
+{
+    try
+    {
+        bool bind = false;
+        boost::program_options::options_description desc("allowed options");
+        desc.add_options()
+            ("help", "help message")
+            ("bind,b", boost::program_options::value< bool >( & bind), "bind thread to CPU")
+            ("jobs,j", boost::program_options::value< boost::uint64_t >( & jobs), "jobs to run");
+
+        boost::program_options::variables_map vm;
+        boost::program_options::store(
+                boost::program_options::parse_command_line(
+                    argc,
+                    argv,
+                    desc),
+                vm);
+        boost::program_options::notify( vm);
+
+        if ( vm.count("help") ) {
+            std::cout << desc << std::endl;
+            return EXIT_SUCCESS;
+        }
+
+        if ( bind) bind_to_processor( 0);
+
+        duration_type overhead_c = overhead_clock();
+        std::cout << "overhead " << overhead_c.count() << " nano seconds" << std::endl;
+        boost::uint64_t res = measure_time( overhead_c).count();
+        std::cout << "average of " << res << " nano seconds" << std::endl;
+#ifdef BOOST_CONTEXT_CYCLE
+        cycle_type overhead_y = overhead_cycle();
+        std::cout << "overhead " << overhead_y << " cpu cycles" << std::endl;
+        res = measure_cycles( overhead_y);
+        std::cout << "average of " << res << " cpu cycles" << std::endl;
+#endif
+
+        return EXIT_SUCCESS;
+    }
+    catch ( std::exception const& e)
+    { std::cerr << "exception: " << e.what() << std::endl; }
+    catch (...)
+    { std::cerr << "unhandled exception" << std::endl; }
+    return EXIT_FAILURE;
+}

libs/coroutine2/performance/segmented/performance_switch.cpp

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+
+//          Copyright Oliver Kowalke 2014.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+#include <cstdlib>
+#include <iostream>
+#include <stdexcept>
+#include <string>
+
+#include <boost/chrono.hpp>
+#include <boost/coroutine2/all.hpp>
+#include <boost/cstdint.hpp>
+#include <boost/program_options.hpp>
+
+#include "../bind_processor.hpp"
+#include "../clock.hpp"
+#include "../cycle.hpp"
+
+boost::uint64_t jobs = 1000;
+
+struct X
+{
+    std::string str;
+
+    X( std::string const& str_) :
+        str( str_)
+    {}
+};
+
+const X x("abc");
+
+void fn_void( boost::coroutines2::coroutine< void >::push_type & c)
+{ while ( true) c(); }
+
+void fn_int( boost::coroutines2::coroutine< int >::push_type & c)
+{ while ( true) c( 7); }
+
+void fn_x( boost::coroutines2::coroutine< X >::push_type & c)
+{
+    while ( true) c( x);
+}
+
+duration_type measure_time_void( duration_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< void >::pull_type c( stack_alloc, fn_void);
+        
+    time_point_type start( clock_type::now() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    duration_type total = clock_type::now() - start;
+    total -= overhead_clock(); // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+
+duration_type measure_time_int( duration_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< int >::pull_type c( stack_alloc, fn_int);
+        
+    time_point_type start( clock_type::now() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    duration_type total = clock_type::now() - start;
+    total -= overhead_clock(); // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+
+duration_type measure_time_x( duration_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< X >::pull_type c( stack_alloc, fn_x);
+        
+    time_point_type start( clock_type::now() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    duration_type total = clock_type::now() - start;
+    total -= overhead_clock(); // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+
+# ifdef BOOST_CONTEXT_CYCLE
+cycle_type measure_cycles_void( cycle_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< void >::pull_type c( stack_alloc, fn_void);
+        
+    cycle_type start( cycles() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    cycle_type total = cycles() - start;
+    total -= overhead; // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+
+cycle_type measure_cycles_int( cycle_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< int >::pull_type c( stack_alloc, fn_int);
+        
+    cycle_type start( cycles() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    cycle_type total = cycles() - start;
+    total -= overhead; // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+
+cycle_type measure_cycles_x( cycle_type overhead)
+{
+    boost::coroutines2::segmented_stack stack_alloc;
+    boost::coroutines2::coroutine< X >::pull_type c( stack_alloc, fn_x);
+        
+    cycle_type start( cycles() );
+    for ( std::size_t i = 0; i < jobs; ++i) {
+        c();
+    }
+    cycle_type total = cycles() - start;
+    total -= overhead; // overhead of measurement
+    total /= jobs;  // loops
+    total /= 2;  // 2x jump_fcontext
+
+    return total;
+}
+# endif
+
+int main( int argc, char * argv[])
+{
+    try
+    {
+        bool bind = false;
+        boost::program_options::options_description desc("allowed options");
+        desc.add_options()
+            ("help", "help message")
+            ("bind,b", boost::program_options::value< bool >( & bind), "bind thread to CPU")
+            ("jobs,j", boost::program_options::value< boost::uint64_t >( & jobs), "jobs to run");
+
+        boost::program_options::variables_map vm;
+        boost::program_options::store(
+                boost::program_options::parse_command_line(
+                    argc,
+                    argv,
+                    desc),
+                vm);
+        boost::program_options::notify( vm);
+
+        if ( vm.count("help") ) {
+            std::cout << desc << std::endl;
+            return EXIT_SUCCESS;
+        }
+
+        if ( bind) bind_to_processor( 0);
+
+        duration_type overhead_c = overhead_clock();
+        std::cout << "overhead " << overhead_c.count() << " nano seconds" << std::endl;
+        boost::uint64_t res = measure_time_void( overhead_c).count();
+        std::cout << "void: average of " << res << " nano seconds" << std::endl;
+        res = measure_time_int( overhead_c).count();
+        std::cout << "int: average of " << res << " nano seconds" << std::endl;
+        res = measure_time_x( overhead_c).count();
+        std::cout << "X: average of " << res << " nano seconds" << std::endl;
+#ifdef BOOST_CONTEXT_CYCLE
+        cycle_type overhead_y = overhead_cycle();
+        std::cout << "overhead " << overhead_y << " cpu cycles" << std::endl;
+        res = measure_cycles_void( overhead_y);
+        std::cout << "void: average of " << res << " cpu cycles" << std::endl;
+        res = measure_cycles_int( overhead_y);
+        std::cout << "int: average of " << res << " cpu cycles" << std::endl;
+        res = measure_cycles_x( overhead_y);
+        std::cout << "X: average of " << res << " cpu cycles" << std::endl;
+#endif
+
+        return EXIT_SUCCESS;
+    }
+    catch ( std::exception const& e)
+    { std::cerr << "exception: " << e.what() << std::endl; }
+    catch (...)
+    { std::cerr << "unhandled exception" << std::endl; }
+    return EXIT_FAILURE;
+}