in on
the same cache line. That's probably more productive than trying to add
prefetch calls all over the place.
So - any hints, what are the guidlines for using prefetch()?
Only use it if you have good reason to believe that you *will* need
that variable (in other words, it's not in the unlikely half
boost.
So - any hints, what are the guidlines for using prefetch()?
You really should *not* prefetch() all variables you want to use. Prefetch
itself generates code which needs cpu cycles. It can quickly make your program
slower. Use it only in places where
- the data is very unlikely
