how to knock a page out of file cache

[Ishwor Gurung]

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> Also, are you looking for sync(2) http://linux.die.net/man/2/sync?

Also, maybe mmap.flush([offset, size]) @
http://docs.python.org/library/mmap.html ?
Get the file, mmap it and flush it. The docs has more info on flush(...)

Afaik, ultimately the kernel will control the writebacks of dirty
pages and their frequency of writebacks.
So if you want the shortest path, you can choose to go the /proc path.

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Regards,
Ishwor Gurung