diff options
Diffstat (limited to 'zen/perf.h')
| -rw-r--r-- | zen/perf.h | 23 |
1 files changed, 11 insertions, 12 deletions
@@ -23,21 +23,20 @@ static zen::PerfTimer perfTest(true); //startPaused perfTest.resume(); - ZEN_ON_SCOPE_EXIT(perfTest.pause()); -*/ + ZEN_ON_SCOPE_EXIT(perfTest.pause()); */ namespace zen { -//issue with wxStopWatch? https://freefilesync.org/forum/viewtopic.php?t=1426 -// => wxStopWatch implementation uses QueryPerformanceCounter: https://github.com/wxWidgets/wxWidgets/blob/17d72a48ffd4d8ff42eed070ac48ee2de50ceabd/src/common/stopwatch.cpp -// => whatever the problem was, it's almost certainly not caused by QueryPerformanceCounter(): -// MSDN: "How often does QPC roll over? Not less than 100 years from the most recent system boot" -// https://docs.microsoft.com/en-us/windows/win32/sysinfo/acquiring-high-resolution-time-stamps#general-faq-about-qpc-and-tsc -// -// => using the system clock is problematic: https://freefilesync.org/forum/viewtopic.php?t=5280 -// -// std::chrono::system_clock wraps ::GetSystemTimePreciseAsFileTime() -// std::chrono::steady_clock wraps ::QueryPerformanceCounter() +/* issue with wxStopWatch? https://freefilesync.org/forum/viewtopic.php?t=1426 + - wxStopWatch implementation uses QueryPerformanceCounter: https://github.com/wxWidgets/wxWidgets/blob/17d72a48ffd4d8ff42eed070ac48ee2de50ceabd/src/common/stopwatch.cpp + - whatever the problem was, it's almost certainly not caused by QueryPerformanceCounter(): + MSDN: "How often does QPC roll over? Not less than 100 years from the most recent system boot" + https://docs.microsoft.com/en-us/windows/win32/sysinfo/acquiring-high-resolution-time-stamps#general-faq-about-qpc-and-tsc + + - using the system clock is problematic: https://freefilesync.org/forum/viewtopic.php?t=5280 + + std::chrono::system_clock wraps ::GetSystemTimePreciseAsFileTime() + std::chrono::steady_clock wraps ::QueryPerformanceCounter() */ class StopWatch { public: |