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enable/disable stack unwinding in performance tests

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This commit is contained in:
Oliver Kowalke
2014-01-26 11:16:31 +01:00
parent 7b6bba07c0
commit e74929f66a
4 changed files with 33 additions and 15 deletions
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13
performance/performance_create_protected.cpp
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@@ -21,6 +21,7 @@ typedef boost::coroutines::protected_stack_allocator stack_allocator;
typedef boost::coroutines::coroutine< void, stack_allocator > coroutine;
boost::coroutines::flag_fpu_t preserve_fpu = boost::coroutines::fpu_not_preserved;
boost::coroutines::flag_unwind_t unwind_stack = boost::coroutines::stack_unwind;
boost::uint64_t jobs = 1000;
void fn( coroutine::push_type & c)
@@ -31,11 +32,11 @@ duration_type measure_time()
stack_allocator stack_alloc;
// cache warum-up
coroutine::pull_type c( fn, boost::coroutines::attributes( preserve_fpu), stack_alloc);
coroutine::pull_type c( fn, boost::coroutines::attributes( unwind_stack, preserve_fpu), stack_alloc);
time_point_type start( clock_type::now() );
for ( std::size_t i = 0; i < jobs; ++i) {
coroutine::pull_type c( fn, boost::coroutines::attributes( preserve_fpu), stack_alloc);
coroutine::pull_type c( fn, boost::coroutines::attributes( unwind_stack, preserve_fpu), stack_alloc);
}
duration_type total = clock_type::now() - start;
total -= overhead_clock(); // overhead of measurement
@@ -50,11 +51,11 @@ cycle_type measure_cycles()
stack_allocator stack_alloc;
// cache warum-up
coroutine::pull_type c( fn, boost::coroutines::attributes( preserve_fpu), stack_alloc);
coroutine::pull_type c( fn, boost::coroutines::attributes( unwind_stack, preserve_fpu), stack_alloc);
cycle_type start( cycles() );
for ( std::size_t i = 0; i < jobs; ++i) {
coroutine::pull_type c( fn, boost::coroutines::attributes( preserve_fpu), stack_alloc);
coroutine::pull_type c( fn, boost::coroutines::attributes( unwind_stack, preserve_fpu), stack_alloc);
}
cycle_type total = cycles() - start;
total -= overhead_cycle(); // overhead of measurement
@@ -70,11 +71,12 @@ int main( int argc, char * argv[])
{
bind_to_processor( 0);
bool preserve = false;
bool preserve = false, unwind = true;
boost::program_options::options_description desc("allowed options");
desc.add_options()
("help", "help message")
("fpu,f", boost::program_options::value< bool >( & preserve), "preserve FPU registers")
("unwind,u", boost::program_options::value< bool >( & unwind), "unwind stack")
("jobs,j", boost::program_options::value< boost::uint64_t >( & jobs), "jobs to run");
boost::program_options::variables_map vm;
@@ -92,6 +94,7 @@ int main( int argc, char * argv[])
}
if ( preserve) preserve_fpu = boost::coroutines::fpu_preserved;
if ( ! unwind) unwind_stack = boost::coroutines::no_stack_unwind;
boost::uint64_t res = measure_time().count();
std::cout << "average of " << res << " nano seconds" << std::endl;