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Message-ID: <AANLkTim8B69pvxDMQXfdXiK4ORjM80hgGGT_ZzYHdUxZ@mail.gmail.com>
Subject: [gentoo-user] Preventing a shared interrupt
From: Grant <emailgrant@gmail.com>
To: Gentoo mailing list <gentoo-user@lists.gentoo.org>
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Does anyone know how to prevent my "nouveau" video card and "ath" wifi
card from sharing interrupt 19?  I can't move the video card slot and
I'd rather not move the wifi card slot if possible.

BTW, does anyone see any other opportunity for interrupt optimization
here?  I'm trying to optimize for video and especially audio, and I'm
using a USB 1.0 sound card.

# cat /proc/interrupts
           CPU0
  0:     473139   IO-APIC-edge      timer
  1:          2   IO-APIC-edge      i8042
  7:          1   IO-APIC-edge
  8:        127   IO-APIC-edge      rtc0
  9:          0   IO-APIC-fasteoi   acpi
 12:          3   IO-APIC-edge      i8042
 14:          0   IO-APIC-edge      ide0
 19:     135597   IO-APIC-fasteoi   nouveau, ath
 20:          2   IO-APIC-fasteoi   ehci_hcd:usb2
 21:      13860   IO-APIC-fasteoi   ehci_hcd:usb1
 22:     971970   IO-APIC-fasteoi   ohci_hcd:usb4
 23:       3446   IO-APIC-fasteoi   ohci_hcd:usb3
 28:      21524   PCI-MSI-edge      ahci
NMI:          0   Non-maskable interrupts
LOC:    2234210   Local timer interrupts
SPU:          0   Spurious interrupts
PMI:          0   Performance monitoring interrupts
PND:          0   Performance pending work
THR:          0   Threshold APIC interrupts
MCE:          0   Machine check exceptions
MCP:          6   Machine check polls
ERR:          1
MIS:          0

- Grant