Hi :) I maintained my computer, cleaned it, reconnected all cards and RAMs, hot glued SATA connectors etc.. I missed 256MB RAM for some time past, but it never had impact to the latency test. Memtest confirms that some RAM addresses are borked, unfortunately the RAMs seem to be ok, there might be an issue with the mobo.
However, I removed an USB WLAN thingy and checked CPU frequency scaling and now the Jack MIDI latency test doesn't fail anymore :). Btw. at shutdown there are still those .goutputstream-* files stored in /home/user_dir. spinymouse@qrc:~$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfddf0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 Card 3: KORG INC. nanoKONTROL at usb-0000:00:13.0-2, full speed Card 4: USB Device 0x170b:0x11 at usb-0000:00:13.1-2, full speed root@qrc:~# ntpdate ntp.favey.ch 14 Oct 20:40:49 ntpdate[2327]: adjust time server 195.34.89.227 offset 0.355956 sec spinymouse@qrc:~$ cpufreq-info | grep current current CPU frequency is 1000 MHz. spinymouse@qrc:~$ sudo cpufreq-set -g performance spinymouse@qrc:~$ cpufreq-info | grep current current CPU frequency is 2.10 GHz. spinymouse@qrc:~$ ls -hAl .goutputstream-* -rw------- 1 spinymouse spinymouse 0 Oct 14 20:39 .goutputstream-4QURLW [spinymouse@archlinux ~]$ ls -hAl /run/media/spinymouse/qrc/home/spinymouse/.goutputstream-* -rw------- 1 spinymouse 1000 0 Oct 14 20:39 /run/media/spinymouse/qrc/home/spinymouse/.goutputstream-4QURLW -rw------- 1 spinymouse 1000 0 Oct 14 21:23 /run/media/spinymouse/qrc/home/spinymouse/.goutputstream-Y08ULW spinymouse@qrc:~$ /etc/init.d/rtirq status PID CLS RTPRIO NI PRI %CPU STAT COMMAND 60 FF 90 - 130 0.0 S irq/8-rtc0 715 FF 85 - 125 0.0 S irq/18-snd_hdsp 757 FF 85 - 125 0.0 S irq/20-snd_ice1 759 FF 85 - 125 0.0 S irq/21-snd_ice1 56 FF 78 - 118 0.0 S irq/18-ohci_hcd 58 FF 77 - 117 0.0 S irq/18-ohci_hcd 679 FF 50 - 90 0.0 S irq/18-radeon spinymouse@qrc:~$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 ######### RME ######### First test while writing and opening Firefox: spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.68 ms (560.34 frames) Lowest latency: 11.65 ms (559 frames) Highest latency: 12.64 ms (606 frames) Peak MIDI jitter: 0.99 ms (47 frames) Average MIDI jitter: 0.01 ms (0.18 frames) Jitter Plot: 0.0 - 0.1 ms: 8181 0.1 - 0.2 ms: 6 0.2 - 0.3 ms: 1 0.6 - 0.7 ms: 1 0.8 - 0.9 ms: 2 0.9 - 1.0 ms: 1 Latency Plot: 11.6 - 11.7 ms: 7757 11.7 - 11.8 ms: 428 11.8 - 11.9 ms: 2 11.9 - 12.0 ms: 1 12.2 - 12.3 ms: 1 12.5 - 12.6 ms: 2 12.6 - 12.7 ms: 1 Messages sent: 8192 Messages received: 8192 Following tests while doing nothing else, Firefox closed: spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.11 frames) Lowest latency: 11.64 ms (559 frames) Highest latency: 11.73 ms (563 frames) Peak MIDI jitter: 0.09 ms (4 frames) Average MIDI jitter: 0.01 ms (0.15 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 8120 11.7 - 11.8 ms: 72 Messages sent: 8192 Messages received: 8192 spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.05 frames) Lowest latency: 11.65 ms (559 frames) Highest latency: 11.73 ms (563 frames) Peak MIDI jitter: 0.08 ms (4 frames) Average MIDI jitter: 0.01 ms (0.18 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 8119 11.7 - 11.8 ms: 73 Messages sent: 8192 Messages received: 8192 ######### TerraTec ######### spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:2-1 TerraTec EWX24/96 MIDI 1 out" "system:2-1 TerraTec EWX24/96 MIDI 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.69 ms (561.05 frames) Lowest latency: 11.67 ms (560 frames) Highest latency: 11.75 ms (564 frames) Peak MIDI jitter: 0.08 ms (4 frames) Average MIDI jitter: 0.00 ms (0.00 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 7747 11.7 - 11.8 ms: 445 Messages sent: 8192 Messages received: 8192 ######### USB ######### spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:5-1 USB Device 0x170b:0x11 1 out" "system:5-1 USB Device 0x170b:0x11 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 12.40 ms (595.21 frames) Lowest latency: 11.88 ms (570 frames) Highest latency: 14.98 ms (719 frames) Peak MIDI jitter: 3.10 ms (149 frames) Average MIDI jitter: 0.25 ms (11.51 frames) Jitter Plot: 0.0 - 0.1 ms: 1533 0.1 - 0.2 ms: 1750 0.2 - 0.3 ms: 1703 0.3 - 0.4 ms: 1556 0.4 - 0.5 ms: 1540 0.5 - 0.6 ms: 108 0.9 - 1.0 ms: 1 2.5 - 2.6 ms: 1 Latency Plot: 11.8 - 11.9 ms: 83 11.9 - 12.0 ms: 748 12.0 - 12.1 ms: 746 12.1 - 12.2 ms: 858 12.2 - 12.3 ms: 865 12.3 - 12.4 ms: 825 12.4 - 12.5 ms: 798 12.5 - 12.6 ms: 795 12.6 - 12.7 ms: 845 12.7 - 12.8 ms: 810 12.8 - 12.9 ms: 792 12.9 - 13.0 ms: 25 13.3 - 13.4 ms: 1 14.9 - 15.0 ms: 1 Messages sent: 8192 Messages received: 8192 ######### RME ######### Again spinymouse@qrc:~$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.67 ms (560.04 frames) Lowest latency: 11.65 ms (559 frames) Highest latency: 11.75 ms (564 frames) Peak MIDI jitter: 0.10 ms (5 frames) Average MIDI jitter: 0.01 ms (0.17 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 8132 11.7 - 11.8 ms: 60 Messages sent: 8192 Messages received: 8192 spinymouse@qrc:~$ date Sun Oct 14 21:21:28 CEST 2012 spinymouse@qrc:~$ uname -r 3.5.0-17-lowlatency Regards, Ralf -- Ubuntu-Studio-devel mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel
