Messages in this thread | | | Date | Tue, 16 Nov 2004 22:33:12 +0100 | From | Florian Schmidt <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm1-V0.7.27-3 |
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On Tue, 16 Nov 2004 23:31:35 +0100 Ingo Molnar <mingo@elte.hu> wrote:
> and i'd suggest to chrt irq 1 back to below prio 90, maybe this explains > the console-switching latency? If you do a console-switch via the > keyboard then its priority 99 can get inherited by events/0 which then > does the quite expensive VGA console clearing/copying with priority 99, > possibly delaying rtc_wakeup quite significantly, easily for a > millisecond or so. So what you are seeing might be priority inheritance > handling at work! >
ah, will try this right away..
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