Messages in this thread | | | Subject | Re: [PATCH] Radix-tree pagecache for 2.5 | Date | Tue, 29 Jan 2002 23:32:08 +0000 (GMT) | From | Alan Cox <> |
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> We can let oracle shared memory segments use 4 MB pages, > but still use the normal page cache code to look up the > pages.
That has some potential big wins beyond oracle. Some of the big number crunching algorithms also benefit heavily from 4Mb pages even when you try and minimise tlb misses.
Just remember to read the ppro/early pII errata when starting - there are some page invalidation funnies. If I remember rightly we have to kill MCE support on PPro if we do 4Mb pages that may overlap 4K ones - 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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