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SubjectI/O in linux
Hi,
I am trying to understand the I/O scheduling under linux.

I believe linux right now implements the elevator algorithm in only one
direction...(CSCAN). Would it be possible to implement elevator in both
directions ??

Also, I was trying to modify the scheduling algorithm slightly by
redirecting the requests to a function that I wrote to sequence the
requests based on some priority. To periodically move the requests from my
Q to the linux Q I need to have a timer-based thread that does
it (basically issues make_requests periodically for each request
in the Q I maintain). However, I am not sure about how I can initialize
this thread before any I/O can be handled...

please help.....anyone.

thanks a lot in advance.

badri




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