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Date:      Sat, 20 Nov 2010 01:30:54 -0500
From:      Mike Tancsa <mike@sentex.net>
To:        Kostik Belousov <kostikbel@gmail.com>
Cc:        stable@freebsd.org
Subject:   Re: Call for testers: FPU changes
Message-ID:  <4CE76B1E.10803@sentex.net>
In-Reply-To: <20101116094330.GH2392@deviant.kiev.zoral.com.ua>
References:  <20101115211350.GE2392@deviant.kiev.zoral.com.ua> <4CE1FDBA.9030403@sentex.net> <20101116094330.GH2392@deviant.kiev.zoral.com.ua>

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On 11/16/2010 4:43 AM, Kostik Belousov wrote:
> On Mon, Nov 15, 2010 at 10:42:50PM -0500, Mike Tancsa wrote:
>> On 11/15/2010 4:13 PM, Kostik Belousov wrote:
>>>
>>> Patch is at
>>> http://people.freebsd.org/~kib/misc/releng_8_fpu.1.patch


I did some more tests post commit today using the aesni kld taken
directly from HEAD.  BTW, do you plan to MFC this as well ?

Results at the bottom of http://www.tancsa.com/fpu.html

It certainly makes a difference with geli. IPSEC and userland stuff, not
so much. The CPU itself is crazy fast, so its hard to see a difference
in things like ssh and even ipsec didnt yield any differences.  For ssh
and userland stuff I guess once there is an aesni userland engine, this
would probably help over the cryptodev interface.

	---Mike



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