Date: Sat, 20 Nov 2010 13:11:33 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Mike Tancsa <mike@sentex.net> Cc: stable@freebsd.org Subject: Re: Call for testers: FPU changes Message-ID: <20101120111133.GX2392@deviant.kiev.zoral.com.ua> In-Reply-To: <4CE76B1E.10803@sentex.net> References: <20101115211350.GE2392@deviant.kiev.zoral.com.ua> <4CE1FDBA.9030403@sentex.net> <20101116094330.GH2392@deviant.kiev.zoral.com.ua> <4CE76B1E.10803@sentex.net>
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--1i4ArEBZfe4JFxzw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Nov 20, 2010 at 01:30:54AM -0500, Mike Tancsa wrote: > 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 >=20 >=20 > 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 ? Sure, I will merge aesni(4), it was the only reason to work on the kern_fpu in stable/8. I want some pause between KPI and driver MFC, to ease the handling of possible mismerge or fixing latent bugs (since stable has much larger testing base then HEAD). >=20 > Results at the bottom of http://www.tancsa.com/fpu.html >=20 > 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. Yes, the small blocks encoding/decoding has a large overhead of loop setup code. Thank you. --1i4ArEBZfe4JFxzw Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAkznrOUACgkQC3+MBN1Mb4g+gQCg7rb1WE3kPbxOpVDdxqtFcXiH KuAAnjAh/z1YJ6MJ+2NxXIzWimaK3QD5 =/Aav -----END PGP SIGNATURE----- --1i4ArEBZfe4JFxzw--
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