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On Wed, 2005-10-19 at 00:10 -0400, Lee Revell wrote: > On Tue, 2005-10-18 at 22:01 +0200, Guido Fiala wrote: > > Of course one could always implement f_advise-calls in all > > applications > > Um, this seems like the obvious answer. The application doing the read > KNOWS it's a streaming read, while the best the kernel can do is guess. > > You don't really make much of a case that fadvise can't do the job. The issue is, how will "other/random" programs/applications affect performance of my application. Complain I hear most is from our database folks, they tune stuff and they are happy with their performance. And then, some one does a tar/cp/cpio/ftp/backup/compile on some random files on the system. Suddenly, database performance drops. They want to see a system wide/ per-filesystem tunable on how much pagecache it takes up. Andrew, does this make sense at all ? Thanks, Badari - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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