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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: wanna_bmw who wrote (80840)	5/28/2002 4:17:10 PM
From: Ali Chen	Read Replies (1) \| Respond to of 275872

Here you go again. Could you ever stop and think? "They correctly said that the cache must get invalidated or "flushed" as a result to an I/O device writing (inbound) to main memory." Please go and learn that "invalidating" of a cacheline has nothing to do with "flushing" of the cacheline data, one does not imply another, and "or" is totally inapropriate. On "other agent's" writes (the other agent meaning either a bus-mastering I/O device, or other CPU), the cacheline is not "flushed", it makes no sense whatsoever since the data will be overwritten anyway. What is so hard to understand here? "As I tried to explain before, they miss the details that a write to a cache line that is not previously owned by the requesting device must do a read for ownership, which as you explain is the direct cause for a cache invalidate or implicit write back (flush)." Nice try, wanna. In that particular paragraph Ace's were talking about bustmastering I/O device, they do not have caches and do not do write-allocate, so you are grasping at the straw second time. But your creativity must be commended, your grade may move from "F" to "D". "Must do a read for ownership", wow, that was good. "More broken English." Ha. How typical for a loser in an exchange, to pick up on grammar. Ok, what's next? Putting me on ignore I guess? BHAHAHAHAHA. "and challenge my level of experience ... Am I upsetting you?" Not really. Actually, it gives me more confidence in AMD as long as experts like yourself and Yousef are working hard for Intel. Thanks. - Ali