Hi all,
I have some questions about ksm.
1) khugepaged default nice value is 19, but ksmd default nice value is
5, why this big different?
2) why ksm doesn't support pagecache and tmpfs now? What's the bottleneck?
3) ksm kernel doc said that "KSM only merges anonymous(private) pages,
never pagecache(file) pages". But where judege it should be private?
4) ksm kernel doc said that "To avoid the instability and the resulting
false negatives to be permanent, KSM re-initializes the unstable tree
root node to an empty tree, at every KSM pass." But I can't find where
re-initializes the unstable tree, could you explain me?
Thanks in advance. :-)
Regards,
Chen
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