Can't seem to get jackd to run at RT prio..
If this isn't the right group, where can I post this appropriately?
Here is jackd (jackd version 0.102.20 tmpdir /tmp protocol 16) apparently running at priority 19 even though I've started it with -R and -P80; what am I doing wrong? Running as root BTW.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21948 root 25 0 356m 28m 20m R 98 2.9 232:17.87 nautilus
23191 root 18 0 138m 34m 8420 S 1 3.5 0:00.68 ecasound
21913 root 15 0 210m 56m 41m S 1 5.7 2:34.20 jamin
23177 root 18 0 37876 21m 3560 S 1 2.1 0:03.52 jackd
There are a couple system processes with RT prio:
2 root RT 0 0 0 0 S 0 0.0 0:00.02 migration/0
3 root RT 0 0 0 0 S 0 0.0 0:11.45 posix_cpu_timer
I have it running with these options:
jackd -v -R -P80 -dalsa -r44100 -p256 -n4 -D -Chw:0,0 -Phw:0,0 -i2 -o4
Kernel is X86_64 2.6.19-3-rt #1 SMP PREEMPT
Sound is Intel IC7H.
Another time I started it, I used chrt:
# jackd -v -R -P80 -dalsa -r44100 -p256 -n4 -D -Chw:0,0 -Phw:0,0 -i2 -o4 >/tmp/jackd.log 2>&1 &
[1] 23375
# chrt -p 23375
pid 23375's current scheduling policy: SCHED_OTHER
pid 23375's current scheduling priority: 0
My IRQ's show 16 is shared with a USB device; could this be related?:
CPU0 CPU1
0: 9665 0 IO-APIC-edge timer
1: 2 0 IO-APIC-edge i8042
7: 0 0 IO-APIC-edge parport0
8: 0 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-fasteoi acpi
12: 908139 0 IO-APIC-edge i8042
14: 3033240 0 IO-APIC-edge ide0
16: 20557341 0 IO-APIC-fasteoi HDA Intel, uhci_hcd:usb5
18: 7348595 0 IO-APIC-fasteoi uhci_hcd:usb4
19: 703786 0 IO-APIC-fasteoi libata, uhci_hcd:usb3
20: 228012 0 IO-APIC-fasteoi ohci1394, eth0
23: 49 0 IO-APIC-fasteoi uhci_hcd:usb1, ehci_hcd:usb2
NMI: 177786909 194937476
LOC: 43055416 34697335
ERR: 0
Ideas? What else can I tell you?
Thank you alot,
Ronan
On 1/26/07, ronan mcallister <
bass.woofer@xxxxxxxxx> wrote:
Hi Lee,
I do everything as root. Maybe it's qjackctl's RT indicator that isn't detecting the RT? eg a false indicator function?
I've got x64-based 2.6.19-3-rt #1 SMP PREEMP build kernel.
I control jackd via qjackctl, it is now running with the options: "jackd -R -dalsa -r44100 -p256 -n4 -D -Chw:0,0 -Phw:0 -i2 -o2".
I'll try to turn up the verbosity of the messages maybe that'll help me see something....
I've also tried setting priority to 80 (with -P80).
Is there some form of system tool to help me understand more about RT?
I should move this subject to a different group if it does become a system level thing.
Thanks alot,
RonanOn 1/26/07, Lee Revell < rlrevell@xxxxxxxxxxx> wrote:On 1/26/07, ronan mcallister <bass.woofer@xxxxxxxxx> wrote:
> I still
> have to figure out why I can't get it to run in RT with my RT/64 kernel....
>
Probably a permissions issue. Does RT work if you run everything as root?
Lee
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