IRQ priority / interrupt affinity hacks
Also searched as: irq priority · interrupt affinity · dpc latency tweaks
What it does
Registry-deep manual control of which CPU cores service which device interrupts.
The honest verdict
Negligible on modern, healthy systems and easy to break devices with. Only meaningful when diagnosing a specific DPC-latency problem with proper tools — which is what Compy's Latency tab is for.
How Compy treats it
It's on Compy's refuse list. Compy will never apply this tweak — and if a guide already talked you into it, reversibility is the whole point of the app.
The Compy Blackbook holds 174 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →