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.
Hi Jeremy,
not sure to understand all ATM, but it gives an idea :
Would it be possible to run a system with a >=2.6.39 + threadirqs
kernel, and all services
you like when don't make music, and then run a script to killall
everything unrelated to music
and play ?
Please let us know where you put your great tips !
Thanks,
Fred
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