[PlanetCCRMA] I had time for a quick test
Tracey Hytry
shakti@bayarea.net
Sun Dec 31 16:28:22 2006
I just got a chance to boot up one of Ingo's kernels from his yum repository.
This was done on a FC5 machine with the planet apps installed.
The machine is an athlon64@2GHz, 2gig ram, using the xorg nv video driver.
Running the 2.6.20-rc1.1.rt3.0001 kernel.
I started jack via qjackctl, using 2 periods/64 frames(2.9msec latency) using a delta 1010(ICE1712) sound card.
I then loaded up hydrogen, aeolus, and whysynth; patching an external midi keyboard to the 2 softsynths, while hydrogen played one of it's demos. I got no xruns while playing the keyboard at that setting, though any lower latency setting did not work.
I went and checked the interrupts and I think that the "rtirq" script might not be working with the kernel. Below is what I got from looking at the interrupts:
tracey@gaia /tmp --> /etc/rc.d/init.d/rtirq status
PID CLS RTPRIO NI PRI %CPU STAT COMMAND
5 FF 99 - 139 0.0 S softirq-timer/0
4 FF 50 - 90 0.0 S softirq-high/0
6 FF 50 - 90 0.0 S softirq-net-tx/
7 FF 50 - 90 0.0 S softirq-net-rx/
8 FF 50 - 90 0.0 S softirq-block/0
9 FF 50 - 90 0.0 S softirq-tasklet
10 FF 50 - 90 0.0 S softirq-sched/0
11 FF 50 - 90 0.0 S softirq-hrtimer
12 FF 50 - 90 0.0 S softirq-rcu/0
66 FF 50 - 90 0.0 S< IRQ-9
294 FF 50 - 90 0.0 S< IRQ-8
336 FF 50 - 90 0.0 S< IRQ-14
338 FF 50 - 90 0.0 S< IRQ-15
400 FF 50 - 90 0.0 S< IRQ-12
401 FF 50 - 90 0.0 S< IRQ-1
952 FF 50 - 90 0.0 S< IRQ-16
963 FF 50 - 90 0.0 S< IRQ-6
1139 FF 50 - 90 0.0 S< IRQ-18
1148 FF 50 - 90 0.5 S< IRQ-19
2026 FF 50 - 90 0.0 S< IRQ-17
2340 FF 50 - 90 0.3 S< IRQ-7
---and--
tracey@gaia /proc --> cat interrupts
CPU0
0: 86437 IO-APIC-edge timer
1: 1263 IO-APIC-edge i8042
6: 3 IO-APIC-edge floppy
7: 0 IO-APIC-edge MOTU MTPAV
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-fasteoi acpi
12: 7301 IO-APIC-edge i8042
14: 17838 IO-APIC-edge ide0
15: 2268 IO-APIC-edge ide1
16: 0 IO-APIC-fasteoi libata
17: 2542 IO-APIC-fasteoi eth0
18: 0 IO-APIC-fasteoi uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4, ehci_hcd:usb5
19: 0 IO-APIC-fasteoi ICE1712
NMI: 0
LOC: 3325
ERR: 0
MIS: 0
-------------------
Tracey