Dec 15, 2021 · このモジュールでは、デバイス ドライバーの役割と、それらに関連する問題のトラブルシューティングに焦点を当てます。

ISRs are triggered directly by hardware signals, and DPCs are scheduled by those ISRs. Both run at very high priority—DPCs are outranked only by hardware interrupts themselves—so they pre-empt …

Jan 19, 2010 · Occasionally I come across servers (Windows 2003 and 2008) with high processor % interrupt time. Is there a way to see what program or device is causing the interrupts?

A Deferred Procedure Call (DPC) is a Microsoft Windows operating system mechanism which allows high-priority tasks (e.g. an interrupt handler) to defer required but lower-priority tasks for later execution.

Apr 25, 2022 · DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC

Mar 2, 2025 · When a processor exits an ISR or returns from an interrupt, it checks the DPC queue. If DPCs are pending, the kernel raises IRQL to DISPATCH_LEVEL and executes them.

Apr 29, 2013 · Is the computer on a domain network? High CPU consumption by these activities [interrupts and DPCs] can indicate a hardware problem or issues with the device driver. I would …

Apr 24, 2024 · If a third-party app or a service is causing often System Interrupts, you may want to pinpoint it and disable or uninstall it in order to solve the problem. Users have reported that the issue …

On Windows NT-based systems Process Explorer shows two artificial processes: Interrupts and DPCs. These processes reflect the amount of time the system spends servicing hardware interrupts and …

Oct 20, 2012 · I have a problem with Hardware Interrupts and DPCs. No matter what I'm doing on my computer, after I start it up and it has been idling for a half hour or more, Interrupts starts using about …