Good news: Ubuntu Studio Quantal RC amd64 desktop test fatally failed
Ralf Mardorf
ralf.mardorf at alice-dsl.net
Sun Oct 14 19:35:17 UTC 2012
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 at 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 at qrc:~# ntpdate ntp.favey.ch
14 Oct 20:40:49 ntpdate[2327]: adjust time server 195.34.89.227 offset
0.355956 sec
spinymouse at qrc:~$ cpufreq-info | grep current
current CPU frequency is 1000 MHz.
spinymouse at qrc:~$ sudo cpufreq-set -g performance
spinymouse at qrc:~$ cpufreq-info | grep current
current CPU frequency is 2.10 GHz.
spinymouse at qrc:~$ ls -hAl .goutputstream-*
-rw------- 1 spinymouse spinymouse 0 Oct 14 20:39 .goutputstream-4QURLW
[spinymouse at 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 at 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 at qrc:~$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256
#########
RME
#########
First test while writing and opening Firefox:
spinymouse at 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 at 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 at 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 at 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 at 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 at 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 at qrc:~$ date
Sun Oct 14 21:21:28 CEST 2012
spinymouse at qrc:~$ uname -r
3.5.0-17-lowlatency
Regards,
Ralf
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