"Vicente J. Botet Escriba" <vicente.botet@wanadoo.fr> wrote in news:4ED49A27.2030500@wanadoo.fr:
I have added recently a performance test in https://svn.boost.org/svn/boost/branches/release/libs/chrono/perf/store _now_in_vector.cpp. I have no access to a windows platform now, but if you could run it in your system?
Grepping for "steady" from the output files: boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_header.test\msvc- 10.0\debug\asynch-exceptions-on\threading-multi \store_now_in_vector_header.output: steady_clock 649713231 nanoseconds boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_header.test\msvc- 10.0\release\asynch-exceptions-on\threading-multi \store_now_in_vector_header.output: steady_clock 697898058 nanoseconds boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_shared.test\msvc- 10.0\debug\asynch-exceptions-on\threading-multi \store_now_in_vector_shared.output: steady_clock 645896685 nanoseconds boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_shared.test\msvc- 10.0\release\asynch-exceptions-on\threading-multi \store_now_in_vector_shared.output: steady_clock 659919417 nanoseconds boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_static.test\msvc- 10.0\debug\asynch-exceptions-on\threading-multi \store_now_in_vector_static.output: steady_clock 646621148 nanoseconds boost_1_48_0\bin.v2\libs\chrono\perf\store_now_in_vector_static.test\msvc- 10.0\release\asynch-exceptions-on\threading-multi \store_now_in_vector_static.output: steady_clock 636746989 nanoseconds So about 650 nanoseconds using a 32-bit build on Vista 64 Ultimate. BTW, I'd like to suggest changing the output format in the program to put the times first in fixed-width right-justified format followed by the clock names, so the times will line up nicely in columns.