On Sat, 3 Nov 2012 23:44:57 +0100 ttoine <[email protected]> wrote: > Like Len, I would try changing the slot on the mother board. I had a > Multiface II for many years, and didn't have any problem with it, > using it on laptop or workstation.
I only have one PCIe X16, one PCIe x1 and two PCI slots, so there's no other slot for the HDSP PCIe card. Running the script below, doesn't improve a thing for a minimal MIDI session with a few virtual synth and FX, ~8% load. Then I stopped networkmanager and removed r8169 too. Until now I get qtractorMidiEngine::drift(): iAudioTime=4009 iMidiTime=4010 (-1) iTimeDrift=-1 (-0.026%) qtractorMidiEngine::drift(): iAudioTime=15657 iMidiTime=15655 (2) iTimeDrift=1 (0.0061%) qtractorMidiEngine::drift(): iAudioTime=21481 iMidiTime=21480 (1) iTimeDrift=2 (0.0092%) qtractorMidiEngine::drift(): iAudioTime=27306 iMidiTime=27304 (2) iTimeDrift=4 (0.014%) qtractorMidiEngine::drift(): iAudioTime=3862 iMidiTime=3860 (2) iTimeDrift=2 (0.05%) qtractorMidiEngine::drift(): iAudioTime=9686 iMidiTime=9703 (-17) iTimeDrift=-15 (-0.16%) qtractorMidiEngine::drift(): iAudioTime=15510 iMidiTime=15518 (-8) iTimeDrift=-23 (-0.15%) qtractorMidiEngine::drift(): iAudioTime=21334 iMidiTime=21349 (-15) iTimeDrift=-38 (-0.18%) qtractorMidiEngine::drift(): iAudioTime=27158 iMidiTime=27163 (-5) iTimeDrift=-43 (-0.16%) qtractorMidiEngine::drift(): iAudioTime=3721 iMidiTime=3724 (-3) iTimeDrift=-3 (-0.081%) qtractorMidiEngine::drift(): iAudioTime=9546 iMidiTime=9543 (3) iTimeDrift=0 (0%) when playing. There are still xruns for sample_rate=48000 frames_period=256 Governor is set to performance. HR TIMER isn't enabled. Regards, Ralf #!/bin/bash # sudo bash tuning - Ubuntu Studio Quantal # 2012/Nov/03 ### http://www.mythtv.org/wiki/PCI_Latency ### http://wiki.linuxmusicians.com/doku.php?id=system_configuration#pci_bus_latency ### Bluetooth service bluetooth stop ### Network #service network-manager stop #service networking stop # does cause serious issues #modprobe -r r8169 # Ethernet NIC driver ### TerraTec EWX 24/96 modprobe -r snd_ice1712 ### Others modprobe -r firewire-ohci modprobe -r firewire_core service cups stop modprobe -r ppdev # parallel port modprobe -r lp # printer ### Unbinding devices #echo -n "0000:00/0000:00:13.2" > /sys/bus/pci/drivers/ohci_hcd/unbind #echo -n "0000:00/0000:00:13.4" > /sys/bus/pci/drivers/ohci_hcd/unbind ### Log file l="log/tuning.log" #echo "$ lspci -v " > $l #lspci -v >> $l #echo >> $l echo "$ /etc/init.d/rtirq status " > $l /etc/init.d/rtirq status >> $l echo "$ grep 18: /proc/interrupts" >> $l grep 18: /proc/interrupts >> $l echo >> $l echo -n $(date)" - "$(uname -r)" - " >> $l cat /etc/issue >> $l echo "##############################" ; cat $l exit 0 -- Ubuntu-Studio-devel mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
