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mem_cgroup
2010 Nov 04
4
fadvise DONTNEED implementation (or lack thereof)
I've recently been trying to track down the root cause of my server's
persistent issue of thrashing horribly after being left inactive. It
seems that the issue is likely my nightly backup schedule (using rsync)
which traverses my entire 50GB home directory. I was surprised to find
that rsync does not use fadvise to notify the kernel of its use-once
data usage pattern.
It looks like a