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Message-ID: <CAAQ0mPjHbfDSVwzc4mh3+S3fHU=Ng-4gRpNgASi9HmP7O41gQA@mail.gmail.com> Date: Tue, 9 Jun 2015 11:48:24 -0400 From: Martin Martin <martin@...inio.com> To: linux-kernel@...r.kernel.org Subject: What is the Linux page replacement policy? Specifically for the file system cache. These pages claim it's a variant of 2Q, at least in 2.6: https://www.kernel.org/doc/gorman/html/understand/understand013.html http://linux-mm.org/PageReplacementDesign It looks like there was some work on LIRS, CLOCK-Pro and CAR/CART. Did those ever make it into the kernel? http://linux-mm.org/AdvancedPageReplacement There's also FlexiCache, that didn't make it into the standard distribution, did it? https://www.usenix.org/conference/fast-07/flexicache-flexible-interface-customizing-linux-file-system-buffer-cache I'm interested in the default in kernels that are or will be in widespread use, e.g. Ubuntu. I'm not on the mailing list although I plan to check the archives, but please reply to me directly as well as the list. Thanks, Martin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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