high system load when using i915kms

[Konstantin Belousov]

On Tue, Mar 05, 2013 at 12:24:51PM +0000, Max Brazhnikov wrote:
> Hi,
> 
> I've switched recently to new xorg and kms driver. Sometimes after booting my
> system (9.1-STABLE #0 r245741 amd64) shows high load:
> 
> interrupt                          total       rate
> irq1: atkbd0                         612          0
> irq9: acpi0                         3693          1
> irq12: psm0                         7512          2
> irq16: uhci0 uhci3             377172955     144069
> irq20: hpet0                     2923357       1116
> irq23: uhci1 ehci1                 47432         18
> irq256: hdac0                      80799         30
> irq257: alc0                       78474         29
> irq258: iwn0                       19994          7
> irq259: ahci0                     100016         38
> irq260: vgapci0                    31250         11
> Total                          380466094     145327
> 
> I've never seen this with old xorg. The problem is not always reproducible, 
> but it's enough just to load i915kms module without staring X to trigger it.
> 
> Any idea?

So what is the complain ? Do you meaning that loading i915kms causes
the spike in the interrupt rate on the irq16 line ?

What is the graphics part and the south bridge you are using ? Show
the pciconf -lvc output.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 834 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-x11/attachments/20130306/9e2e9ce4/attachment.sig>