Re: [RFC] 4-level page table directories.

From: Robin Holt <>
Date: 2005-11-04 03:36:52
On Wed, Nov 02, 2005 at 05:53:10PM -0800, Chen, Kenneth W wrote:
> I just did a quick measurement with I/O submission path.  get_user_pages
> is my biggest concern that extra level means more code and cache foot
> print for each I/O submission.  It cost about 1.5% more in I/O path
> length on a micro-benchmark (from block layer and Up).  This could be
> all buried as noise in a larger scheme for industry database benchmark.

Can you point me at the benchmark?

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Received on Fri Nov 04 03:38:08 2005

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