I am looking for a mechanism that enables a user process to
advise the kernel on a per-fd basis not to keep more than say
two pages of a certain file any buffer cache based on the
promise that the user process will read that file only in a
sequentially-forward or even non-seeking manner. I exspect
performance improvements from such a mechanism because I
observed that unrelated user processes get paged out when a very
large file is passed thru a streaming application.
Kristian
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