Messages in this thread | | | Date | Mon, 17 Nov 2003 01:45:51 -0800 (PST) | From | kernwek jalsl <> | Subject | softirqd |
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Hi All;
On my embedded board I see that the preemption patch(Love etal.) is not of much use because of the following reaons:
1) calling the scheduler after the hardirq returns is not of much use because the actual work of puting the task in the run queue is done in the bottom half executed by ksoftirqd 2) ksoftirqd is not a real time thread
Will the preemption patch work better if the ksoftirqd is made a real time thread?
Another related question : has anyone thought of introducing prioirty among tasklets? Right now ksoftirqd treats them in a FIFO manner. Adding priority among the various tasklets and making sure that ksoftirqd looks ahead in the queue would ensure a real time treatment to a real time interrupt...
I am sorry in case this has been discussed earlier; in case it has been I would like someone to post me the URl for the discussion.
Regards
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