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PUFFS performance on netbsd-6
I am runnning my usual perfuse test case on netbsd-6: building the
netbsd tree. Performances are much lower than on netbsd-5.
A quick dump of FUSE operations shows that the thing spends most
of its time on lookups. It will exhibit behavior like this:
It seems that while the kernel still knows about a/b/c (it was not
reclaimed), it still have to lookup from the root. Is that on purpose?
If it is, then what is the rationale?
I have not yet tested on -current.
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