> Clearly, if the CPU that's clearing the page is likely to use that > same page soon after, it'd be useful to use temporal stores.
That is always the case in the current code (without Christophers pre cleaning daemon). The page fault handler clears and user space is guaranteed to need at least one cacheline from the fresh page because it just did a page fault on it. With non temporal stores you guarantee at least one hard cache miss directly after the return to user space. I suspect even with precleaning the average time from cleaning to use will be quite short. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
