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Date: Fri, 27 Mar 2015 16:29:31 -0400 (EDT)
From: Daniel Eischen <deischen@freebsd.org>
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Reply-To: Daniel Eischen <deischen@freebsd.org>
To: Eric van Gyzen <vangyzen@FreeBSD.org>
Subject: Re: SSE in libthr
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On Fri, 27 Mar 2015, Eric van Gyzen wrote:

> In a nutshell:
>
> Clang emits SSE instructions on amd64 in the common path of
> pthread_mutex_unlock.  This reduces performance by a non-trivial amount.  I'd
> like to disable SSE in libthr.

This makes sense to me.

-- 
DE