From owner-freebsd-performance@FreeBSD.ORG  Tue Apr 24 20:36:34 2012
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Date: Wed, 25 Apr 2012 00:36:58 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: "K. Macy" <kmacy@freebsd.org>
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Cc: freebsd-performance@freebsd.org, freebsd-current@freebsd.org
Subject: Re: pmap and mtx scalability problem
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On Tue, Apr 24, 2012 at 09:27:30PM +0200, K. Macy wrote:

> Known problem. There is an open disagreement about how to improve the
> granularity of locking in pmap.

split locking to process-specific information and global information?
use lock-free lists (i see TAILQ_INSERT_TAIL in pmap_enter)?

sorry for stupidity, if any.