void ExQueryTimerResolution( [out] PULONG MaximumTime, [out] PULONG MinimumTime, [out] PULONG CurrentTime ); Parameters[out] MaximumTimeA pointer to a location to which the routine writes the maximum time interval, in 100-nanosecond units, between successive ticks of the system clock. A tick...
this will lead to global desynchronization overtime. The synchronization interval depends on the timer resolution setting in your system (can be 0.5 ms down to 15 ms for most systems) and how much frequently the timer goes out of sync. Using TSC without HPET can also lead to clock skews: ...
Timer resolution refers to the granularity of time measurement on a computer system. It determines the smallest interval of time that the system can measure.Why should I adjust timer resolution?Adjusting timer resolution can improve the performance of time-sensitive applications and games by providing...
Current timer interval: 1.000 ms 如果是想查看哪些程序请求了更高的系统定时器精度,那么运行: 1 powercfg energy -duration 5 它会监视系统能耗 5s,然后在当前目录生成一个energy-report.html的分析报告,可以打开它查看。 找到里面的警告部分,会有平台计时器分辨率:未完成的计时器请求(Platform Timer Resolution:Outs...
int absinterval (timerID,value,ovalue) timer_ttimerID; struct itimerstruc_t *value, *ovalue; int resabs (timerID,resolution,maximum) timer_ttimerID; struct timestruc_t *resolution, *maximum; int resinc (timerID,resolution,maximum) ...
While in connected standby, the resolution will be changed by the operating system to 30 seconds. When programs increase the timer frequency (decrease the timer resolution), they increase power consumption of the platform. The Timer Resolution shows the time spent in each resolution interval ...
On Qt and on Windows, when your timer timeout is "short enough" (<= 10ms IIRC), Qt will force system's tick interval to ~1ms (either 1000Hz or 1024Hz). What you need to do is as follows: Keep track of high resolution time using QElapsedTimer (internally it uses performance counte...
Timer Resolution The profile provider uses arbitrary resolution interval timers in the operating system. On architectures that do not support truly arbitrary resolution time-based interrupts, the frequency is limited by the system clock frequency, which is specified by the hz kernel variable. Probes of...
The difference between the measured timer interval and its expected value 50μs for platforms with higher resolution (systems with heavy IO load).Blazej, AdamczykAndrzej, Chydzinski
如果您的 app 需要大於 類別或系統時鐘所提供的Timer解析度,請使用高解析度多媒體計時器;請參閱如何:使用High-Resolution計時器。 如果在 開始之後Timer設定間隔,則會重設計數。 例如,如果您將間隔設定為 5 秒,然後將 屬性true設定Enabled為 ,則會在設定時間Enabled開始計數。 如果您在計數為 3 秒時將間隔重設為...