High interrupt CPU in top...
Dutch Ingraham
stoa at gmx.us
Tue Oct 28 23:17:17 UTC 2014
On 10/28/14 18:37, Peter Harrison wrote:
>
> Here's vmstat-i with Xorg running:
>
> interrupt total rate
> irq1: atkbd0 139 1
> irq9: acpi0 835 7
> irq12: psm0 1746 15
> irq16: uhci3 20622511 177780
> irq20: hpet0 uhci0 118696 1023
> irq21: uhci1 11 0
> irq23: ehci0 2 0
> irq257: hdac0 3495 30
> irq258: iwn0 13406 115
> irq259: ahci0 8639 74
> irq260: vgapci0 1979 17
> Total 20771459 179064
>
> And without Xorg running:
>
> interrupt total rate
> irq1: atkbd0 150 3
> irq9: acpi0 378 9
> irq20: hpet0 uhci0 8303 202
> irq21: uhci1 11 0
> irq23: ehci0 2 0
> irq257: hdac0 61 1
> irq258: iwn0 1536 37
> irq259: ahci0 1634 39
> Total 12075 294
>
> So X is the problem? What can I do to fix it?
>
> Cheers,
>
>
>
> Peter Harrison.
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Try adding the kernel tunable "hw.drm.msi=0" (without quotes) to your
/boot/loader.conf file and reboot. Check vmstat -i with xorg running.
If it works, fine - that addition will persist. Of course, if it
doesn't work, remove that line.
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