Messages in this thread | | | Date | Mon, 7 Jan 2002 03:03:44 -0800 | From | William Lee Irwin III <> | Subject | Re: [PATCH] updated version of radix-tree pagecache |
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Christoph Hellwig schrieb: >> [please Cc velco@fadata.bg and lkml on reply] >> >> I've just uploaded an updated version of Momchil Velikov's patch for a >> scalable pagecache using radix trees. The patch can be found at: >> >> It contains a number of fixed and improvements by Momchil and me.
On Mon, Jan 07, 2002 at 11:05:08AM +0100, Peter W?chtler wrote: > Can you sum up the advantages of this implementation? > I think it scales better on "big systems" where otherwise you end up > with many pages on the same hash? > > Is it beneficial for small systems? (I think not)
I speculate this would be good for small systems as well as it reduces the size of struct page by 2*sizeof(unsigned long) bytes, allowing more incremental allocation of pagecache metadata. I haven't tried it on my smaller systems yet (due to lack of disk space and needing to build the cross-toolchains), though I'm now curious as to its exact behavior there.
Has anyone tried to do accounting on the radix tree metadata overhead yet?
Cheers, Bill - 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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