Re: [00/17] Large Blocksize Support V3

From: Eric W. Biederman
Date: Thu Apr 26 2007 - 14:22:58 EST

William Lee Irwin III <wli@xxxxxxxxxxxxxx> writes:

> On Thu, Apr 26, 2007 at 05:42:17PM +1000, Nick Piggin wrote:
>> Actually, I don't know why people are so excited about being able to
>> use higher order allocations (I would rather be more excited about
>> never having to use them). But for those few places that really need
>> it, I'd rather see them use a virtually mapped kernel with proper
>> defragmentation rather than putting hacks all through the core code.
> In memory as on disk, contiguity matters a lot for performance.

Not nearly so much though. In memory you don't have seeks to avoid.
On disks avoiding seeks is everything.

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