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Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!haven.umd.edu!uunet!magnesium.club.cc.cmu.edu!news.sei.cmu.edu!bb3.andrew.cmu.edu!andrew.cmu.edu!aw2t+ From: "Alex R.N. Wetmore" <aw2t+@andrew.cmu.edu> Newsgroups: comp.os.386bsd.questions Subject: usefulness of memory-cache in multitasking systems Date: Fri, 30 Jul 1993 19:39:46 -0400 Organization: Sophomore, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA Lines: 14 Message-ID: <AgKP52600WB7MsjVgA@andrew.cmu.edu> NNTP-Posting-Host: po5.andrew.cmu.edu I've been sort of wondering how useful a cache would be in a multitasking systems (specifically NetBSD). It seems that every time there was a process swap all of a sudden there would be a different piece of code that would be best off in the cache. I suppose that there are parts of the kernel that will always do better off in the cache (like the scheduler), but does it make a huge difference in system performance. Can anyone correct me if I'm wrong? Just sort of curious about how much of an improvement a cache would make to a 486sx (which already has an 8k cache anyway). alex