Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches)
Kris Kennaway
kris at obsecurity.org
Tue May 24 20:54:28 PDT 2005
On Wed, May 25, 2005 at 05:45:29AM +0200, Matthias Buelow wrote:
Once you remove the debugging options..
> uhci3: [GIANT-LOCKED]
> pcm0: [GIANT-LOCKED]
> interrupt total rate
> irq1: atkbd0 1856 1
> irq13: npx0 1 0
> irq14: ata0 94 0
> irq17: wi0 506 0
> irq20: fxp0 atapci1 73527 72
> irq21: uhci0 ehci0 1 0
> irq22: uhci1 4876 4
> irq23: pcm0 uhci3 1008 0
pcm0 and uhci3 share an interrupt on your system, and both are under
Giant, so they'll fight over it when one receives an interrupt, and
nothing else can run in the kernel when that is happening. Do you
need USB support? If not, get rid of it.
Kris
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