Re: [00/17] Large Blocksize Support V3

From: Nick Piggin
Date: Thu Apr 26 2007 - 03:45:56 EST

Christoph Lameter wrote:
On Thu, 26 Apr 2007, Nick Piggin wrote:

But I maintain that the end result is better than the fragmentation
based approach. A lot of people don't actually want a bigger page
cache size, because they want efficient internal fragmentation as
well, so your radix-tree based approach isn't really comparable.

Me? Radix tree based approach? That approach is in the kernel. Do not create a solution where there is no problem. If we do not want to support large blocksizes then lets be honest and say so instead of redefining what a block is. The current approach is fine if one is satisfied with scatter gather and the VM overhead coming with handling these pages. I fail to see what any of what you are proposing would add to that.

I'm not just making this up. Fragmentation. OK?

SUSE Labs, Novell Inc.
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