efault time slice in linux should alse be this value. it is changed in realtime linux and low latency patch. schdeuling happens in many situations. time sliced used up is only one. many are changed by signal, intr, ...
system will response to an intr asap. how fast u want? faster than a raid or gigabit nic? i am not so familar with rt linux, but describe u requirement, we can disucss. system can response to intr only in lldd. no other choice.
rtlinux have a free version for download, its pro version need money.
i think low latency and preemptive are different. need find some os books to know detail. i almost forgot all stuff learn in my os course now. hehe
o, ic, that task can be handled by normal linux.
lldd low level device driver
u can not feel the difference by u. that will be terrible. u need do some kernel resonpsiveness test. search web, there is a tool to do this. but since many people already test that, u need not do it again.
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发表于 2003-5-5 00:35:21
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发表于 2003-5-5 01:15:48
