From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1SOXC6-0001sI-4L for mharc-grub-devel@gnu.org; Sun, 29 Apr 2012 12:41:54 -0400 Received: from eggs.gnu.org ([208.118.235.92]:54300) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SOXC3-0001rm-7l for grub-devel@gnu.org; Sun, 29 Apr 2012 12:41:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SOXC1-0004Yz-94 for grub-devel@gnu.org; Sun, 29 Apr 2012 12:41:50 -0400 Received: from mail-wg0-f49.google.com ([74.125.82.49]:36254) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SOXC1-0004Yp-04 for grub-devel@gnu.org; Sun, 29 Apr 2012 12:41:49 -0400 Received: by wgbds1 with SMTP id ds1so1642097wgb.30 for ; Sun, 29 Apr 2012 09:41:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:x-enigmail-version:content-type; bh=95xBU7RGp9MDNdfDsAMEbm4bB00ch0Oph4DoAQv4Uek=; b=BVEr7pOJMOexv7CJAepTopc4h4t9fOxZUsIDxZng/apl7k26/q/DzXJFX+1iPR35wN X6FzXRUHRZh9WlKh90UNXK6I4dqUeehPSzEl0MYD4pGwNSxK6vkFij53gFpGj3Vu8suf kdnniIcLzjtThEYncy4uHjmH37QJjM9RsjPoOZaymLysGz1SwxZPJc1jN5D01olZV6aZ iZNpQjAca2c56aRrdJztq2PGUXTSoK9IYJjtBYLpaCpmLm9zwacXLevDcWDFGwCVfhYO dlBIHw1FAu1HY0zb46WKGL/RcJ3m1mECJ0YIltKPMTgFc3w5VsBUijC4GBgn5WCg1Lcl NWjA== Received: by 10.180.101.230 with SMTP id fj6mr22476943wib.13.1335717706016; Sun, 29 Apr 2012 09:41:46 -0700 (PDT) Received: from debian.x201.phnet (226-72.76-83.cust.bluewin.ch. [83.76.72.226]) by mx.google.com with ESMTPS id ea6sm21990843wib.5.2012.04.29.09.41.43 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 29 Apr 2012 09:41:45 -0700 (PDT) Message-ID: <4F9D6F43.1010607@gmail.com> Date: Sun, 29 Apr 2012 18:41:39 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20120329 Icedove/10.0.3 MIME-Version: 1.0 To: grub-devel@gnu.org Subject: Re: [PATCH] bug fix for efi network References: In-Reply-To: X-Enigmail-Version: 1.4.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enigA1689EBFC3EAF6CC973D3AEC" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 74.125.82.49 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Apr 2012 16:41:52 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA1689EBFC3EAF6CC973D3AEC Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 29.04.2012 10:22, Bean wrote: > Hi, > > This patch fix a few bugs in efinet. > > It also change the tftp block size from 1024 to 8192, which would > result in HUGE speed difference. In my previous testing, the larger > the block size, the faster the speed. It can reach up to 60-70MB/s in > 1Gb ethernet when block size is about 60K, therefore it would be a > good idea to allow user to configure this parameter. The native tftp > service in UEFI use a default block size of 8192. 8192 is bigger than the MTU on most cards so it results in fragmentation or it emits jumbo packets. It's unclear how both network and server would react to this. Moreover the optimal packet size is in any case: k * (mtu - ip_header_size - udp_header_size - tftp_header_size) where k is some number. Only these number result in fully sized packets. k=3D1 result in best available option for non-fragmented packets. k > 1 can create some preload by abusing fragmentation. Note that some servers do preload by other means and k > 1 with such servers would result in slowdown. > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enigA1689EBFC3EAF6CC973D3AEC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREKAAYFAk+db0MACgkQNak7dOguQgk5CgEAuKorrzHZfGmRrx7H1aQ7jCj7 Ox3berlytuFNSUSEdfYBAKyE8Q2djGtf2ZEcJNfdWbTbZ6ffn0gRAzjoTZ4rCS4C =k+Ut -----END PGP SIGNATURE----- --------------enigA1689EBFC3EAF6CC973D3AEC--