Re: [ecasound] schedule effects

Hi,

> > my kernel version is 2.6.24-24-rt #1 SMP PREEMPT RT Wed Apr 15 18:09:25
> UTC
> > 2009 i686 GNU/Linux.
> >
> laurent@email-addr-hidden-inspiron1525:~$ jackd --version
> jackd version 0.116.2 tmpdir /dev/shm protocol 24
> >
> Some latency in inherent in all USB audio devices.
>
> > CPU0
> > 0: 522 IO-APIC-edge timer
> > 1: 4753 IO-APIC-edge i8042
> > 8: 7 IO-APIC-edge rtc
> > 9: 0 IO-APIC-fasteoi acpi
> > 12: 1056 IO-APIC-edge i8042
> > 14: 96997 IO-APIC-edge libata
> > 15: 0 IO-APIC-edge libata
> > 16: 3 IO-APIC-fasteoi ohci1394, i915@email-addr-hidden:0000:00:02.0
> > 18: 356346 IO-APIC-fasteoi uhci_hcd:usb1, uhci_hcd:usb4,
> > ehci_hcd:usb7
> > 19: 7390 IO-APIC-fasteoi uhci_hcd:usb2, uhci_hcd:usb5, HDA
> Intel
> > 20: 29 IO-APIC-fasteoi ehci_hcd:usb3, uhci_hcd:usb6
> > 21: 12 IO-APIC-fasteoi sdhci:slot0
> > 218: 7 PCI-MSI-edge iwl3945
> > 219: 60407 PCI-MSI-edge eth0
> > 220: 59687 PCI-MSI-edge ahci
> > NMI: 0 Non-maskable interrupts
> > LOC: 14279337 Local timer interrupts
> > RES: 0 Rescheduling interrupts
> > CAL: 0 function call interrupts
> > TLB: 0 TLB shootdowns
> > TRM: 0 Thermal event interrupts
> > SPU: 0 Spurious interrupts
> > ERR: 0
> > MIS: 0
>

I've been testing jack 0.116.2 for some days now with alsaplayer and basic
ecasound recording (without effects).
It"s stable and xruns are very rare.

Indeed, i had a USB problem ... I pull my audio USB device on a USB hub and
there were some problem with it. I could diagnose with the help of dmesg
log.

I remove the audio usb from the hub and pull it directly to my laptop and
every thing goes far more better.

I have still a recurrent message in the dmesg logs:

[10112.490622] rtc: lost 1 interrupts
It's repeated several times ...

I don't know how to fix it.

Help is welcome :)

Kindest Regards,
Laurent

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Received on Wed Jun 10 12:15:02 2009