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SubjectRe: [patch] epoll use a single inode ...

Hi,

> Well, PowerPC "dcbt" does prefetch() correctly, it doesn't ever raise
> exceptions, doesn't have any side effects, takes only enough CPU to
> decode the address, and is ignored if it would have to do anything
> other than load the cacheline from RAM. Prefetch streams are halted
> when they reach the end of a page boundary (no trapping to the MMU)
> and if the TLB entry isn't present then they would asynchronously
> abort.

It depends on the implementation and the HID bit settings. Some do walk
the MMU hashtable if it isnt in the TLB.

Anton
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