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Date: 13 Dec 2006 09:56:58 GMT From: "Miquel van Smoorenburg" <miquels@...tron.nl> To: linux-kernel@...r.kernel.org Subject: Re: cfq performance gap In article <000001c71e76$d4930e90$bb89030a@....corp.intel.com>, Chen, Kenneth W <kenneth.w.chen@...el.com> wrote: >This rawio test plows through sequential I/O and modulo each small record >over number of threads. So each thread appears to be non-contiguous within >its own process context, overall request hitting the device are sequential. >I can't see how any application does that kind of I/O pattern. A NNTP server that has many incoming connections, handled by multiple threads, that stores the data in cylic buffers ? Mike. - 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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