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Re: CVS commit: src/sys/dev/ic
On Mon, Mar 01, 2010 at 12:28:17AM +0900, Izumi Tsutsui wrote:
> > Eh ???
> > if (foo) bar(); else baz();
> > will probably execute faster than:
> > (*bar_baz)();
> > since the indirect jump is (IIRC) always unpredicted.
>
> What do you have to predict on unconditional branches?
The branch destination. E.g. the CPU can't start prefetching from the
bar().
Joerg
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