25 Oct
2011
25 Oct
'11
3:31 p.m.
On 10/25/2011 02:50 PM, Renato wrote:
Hi, your scripts have some nice tips for performance
:)
You can check ID's and their IRQ's of USB2 controllers with for instance:
#!/bin/sh
# USB2 controller ID and IRQ check
for a in $(ls /sys/bus/pci/drivers/ehci_hcd/ | grep 0000)
do
echo -n ID $a has IRQ:
cat /sys/bus/pci/drivers/ehci_hcd/$a/irq
done
If you want to figure out ID's for USB1 (OHCI) controllers replace
'ehci_hcd' with 'ohci_hcd' (of course you could also create a more
sophisticated script).
With top or htop you can monitor the different tasklets if you're using
a realtime kernel or a >= 2.6.39 kernel with the threadirqs kernel option.
> echo -n "0000:00:13.0" >
/sys/bus/pci/drivers/ohci_hcd/unbind
so what does this exactly do? how do I figure
out a similar command for
my system? but now that I think of it by usb controller with lowest IRQ
shares it with the video card, so I guess I can't do anything in this
case...?
you should consider putting those scripts on some
wiki! they're cool
Thanks and will do.
cheers,
renato
Best,
Jeremy