Messages in this thread | | | Date | Thu, 4 May 2006 20:14:54 +0800 | From | Wu Fengguang <> | Subject | Re: [RFC] kernel facilities for cache prefetching |
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On Thu, May 04, 2006 at 09:33:24AM +0200, Arjan van de Ven wrote: > > > > Ascending block numbers on disk can be read very fast, as the disk needs no or > > less seeking. That's even true for stripes and mirrors. (I grant you that > > there are complicated setups out there, but these could be handled similar.) > > > > > btw this all really spells out that you may want to do this as a device > mapper thing; eg have a device mapper module that can do "lookaside" to > a different order/mirror block whatever. The filesystem just doesn't > want to know; do it at the DM level ;) That also solves the entire > caching layering problem etc ;)
I guess some big corps might want to install such a layer into their storage products ;) - 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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