|
From: Julian S. <js...@ac...> - 2002-11-20 22:14:02
|
[I was going to put two topics in here, but decided it's simpler to put each in its own msg.] You'll have to forgive me for not quite keeping up with you young 'uns. I see the stuff on extended bbs but haven't grokked it properly yet. Besides, I spent half the day in meetings with CPU architects and if that isn't enough to put one's head in a spin, I don't know what is. Jeremy. I've built it with the 47-chained-bb patch and it works. A questions: What's the deal on the LRU mechanism when chaining is going, now? Do chained translations get marked when they get used, now? Not afaics ... but this is going to present something of a problem when LRUing because chained ones will appear to not have been used, and so will be much more likely to be dumped. Perhaps we can do something clever based on the idea that if a T has been chained it must have been used at least once since the last LRU pass. Not critical, but something which we need to have a plausible story on. J |