ISR and the DPC routines have finished execution.
The DPC will most likely run immediately on the same processor which means the audio application will halt until both the The interrupt service routine (ISR) is executed and may schedule a DPC (Deferred Procedure Call) to An interrupt can occur on the same processor that an audio program is running on.Īny thread that was running on the processor on which an interrupt occurred will be temporarily halted regardless of its priority.
Devices connected to the system may interrupt on a connectedĬPU and cause their interrupt service routines to execute. The kernel also knows other types of units of execution known as interrupt service routines (ISRs). Higher priority will be given a longer execution time (also known as quantum or time slice) than threads with a lower priority. The Windows thread dispatcher (also known as scheduler) which is part of the kernel executes threads based on a priority scheme. It has audible consequences which are recognized as dropouts, clicks and pops. If one or more buffers miss their deadlines and are not delivered in time Subsystem and the hardware in buffers several times per second. Most devices and tasks but this is bad news for audio applications (which are considered soft real-time) because they need to deliver data to the That requests are delivered within a certain time frame, which are the characteristics of a real-time operating system. All requests to the operating system are delivered on a best effort basis. Windows is not a real-time operating system. In a detailed manner allowing you to perform in-depth analysis. It will create a comprehensible report which also displays all sampled data In mostĬases it will also find the drivers and processes responsible for executing them. LatencyMon will display the highest latencies of a kernel timer and report the highest execution times of ISR and DPC routines as well as hard pagefaults. ItĪlso provides the functionality of an ISR monitor, DPC monitor and a hard pagefault monitor. It will provide a comprehensible report and find the kernel modules and processes responsible for causing audio latencies which result in drop outs. LatencyMon analyzes the possible causes ofīuffer underruns by measuring kernel timer latencies and reporting DPC and ISR execution times as well as hard pagefaults. LatencyMon checks if a system running Windows is suitable for processing real-time audio and other tasks. Home News Products Buy Now Download Support LoginĬheck your system for real-time audio capabilities
0 kommentar(er)
