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Faster page faulting through prezeroingFaster page faulting through prezeroingPosted Jan 13, 2005 22:49 UTC (Thu) by zhjy (guest, #27228)In reply to: Faster page faulting through prezeroing by huaz Parent article: Faster page faulting through prezeroing
I didn't the code. What I guess is that kscrubd can zero'ed a lot of pages once, then it can save some unnecessary cache eviction.
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Faster page faulting through prezeroing Posted Jan 14, 2005 14:40 UTC (Fri) by zhjy (guest, #27228) [Link] Another small thing is: when context switching between processes, anyway, the cache lines may be filled by new ones, so kscrubd will not add much cache pollution. But page fault handling is a synchronous operation and after that you still are in the same context. In that case, cache pollution is bad.
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