Messages in this thread | | | Date | Sun, 28 Jan 2007 11:05:48 +0530 | From | "Sunil Naidu" <> | Subject | 2.6.20-rc6-rt2 - SMP/x86 -- questions about .config selection |
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Hi Ingo,
I did boot with (almost) no problems. Here is ps ax info:-
PID TTY STAT TIME COMMAND 1 ? Ss 0:00 init [5] 2 ? S 0:00 [migration/0] 3 ? S 0:00 [posix_cpu_timer] 4 ? S 0:00 [softirq-high/0] 5 ? S 0:00 [softirq-timer/0] 6 ? S 0:00 [softirq-net-tx/] 7 ? S 0:00 [softirq-net-rx/] 8 ? S 0:00 [softirq-block/0] 9 ? S 0:00 [softirq-tasklet] 10 ? S 0:00 [softirq-sched/0] 11 ? S 0:00 [softirq-hrtimer] 12 ? S 0:00 [softirq-rcu/0] 13 ? S< 0:00 [desched/0] 14 ? S 0:00 [migration/1] 15 ? S 0:00 [posix_cpu_timer] 16 ? S 0:00 [softirq-high/1] 17 ? S 0:00 [softirq-timer/1] 18 ? S 0:00 [softirq-net-tx/] 19 ? S 0:00 [softirq-net-rx/] 20 ? S 0:00 [softirq-block/1] 21 ? S 0:00 [softirq-tasklet] 22 ? S 0:00 [softirq-sched/1] 23 ? S 0:00 [softirq-hrtimer] 24 ? S 0:00 [softirq-rcu/1] ......... .........
Here is the interrupt info:-
CPU0 CPU1 0: 354 0 IO-APIC-edge timer 1: 361 0 IO-APIC-edge i8042 8: 1 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-fasteoi acpi 12: 7 0 IO-APIC-edge i8042 14: 1985 0 IO-APIC-edge ide0 16: 13042 0 IO-APIC-fasteoi uhci_hcd:usb4, HDA Intel, i915@pci:0000:00:02.0 18: 0 0 IO-APIC-fasteoi uhci_hcd:usb3 19: 11520 0 IO-APIC-fasteoi uhci_hcd:usb2, libata 20: 2 0 IO-APIC-fasteoi uhci_hcd:usb1, ehci_hcd:usb5 21: 515 0 IO-APIC-fasteoi eth0 NMI: 0 0 LOC: 23573 24545 ERR: 0 MIS: 0
I did get REMINDER, the following debugging options are turned on in your .config:
CONFIG_CRITICAL_IRQSOFF_TIMING CONFIG_FUNCTION_TRACE
This I have understood, no issues here.
There is some confusion for me while configuring a rt kernel & proceeding for experiments. I did choose the following:-
NO_HZ=y HIGH_RES_TIMERS=y SMP=y PREEMPT_VOLUNTARY=y PREEMPT_SOFTIRQS=y PREEMPT_HARDIRQS=y SPINLOCK_BKL=y CLASSIC_RCU=y SCHED_SMT=y IRQBALANCE=y HZ_1000=y
#1 Is this correct to say PREEMPT_VOLUNTARY=y for rt on this desktop PC? #2 I am not clear about IRQ config selection (which one should be enable/disable for a PC, I did select all as shown in the above config). Any suggestion? #3 Any other parameter(s) I need to enable/disable to get better results? (did disable APM)
Thanks,
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