From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1OMQqV-0002eL-AI for mharc-grub-devel@gnu.org; Wed, 09 Jun 2010 15:21:51 -0400 Received: from [140.186.70.92] (port=52672 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OMQqR-0002br-Ii for grub-devel@gnu.org; Wed, 09 Jun 2010 15:21:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OMQqQ-0002xg-HK for grub-devel@gnu.org; Wed, 09 Jun 2010 15:21:47 -0400 Received: from mail-bw0-f41.google.com ([209.85.214.41]:56550) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OMQqQ-0002xS-Cl for grub-devel@gnu.org; Wed, 09 Jun 2010 15:21:46 -0400 Received: by bwz1 with SMTP id 1so2006347bwz.0 for ; Wed, 09 Jun 2010 12:21:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :x-enigmail-version:content-type; bh=gIYTQlWk9BGBAFBJwqFPP/jxYh1uc7IT118OICOJ+F4=; b=lcuQWXpxGsrgTd0DRbDEk0Gv2ZxAN71/bM352CtQ1b/ZR7A0Pa9eSHHC2t6ZA9c5Ig 0+QjLPCSSIRr3U4RBcr/KJQoF2onp2dLKrzXGkT+c2c2ej5RBY8xqLMNTT24OVloQCPF +ikCKNi5GIGBbswDagFVG+7Sxjq7MUyUyhPXs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:x-enigmail-version:content-type; b=ZdQgQLxRJvQlgxzMOycyGcaOG+n0JzhFiKqW2F4EVvIhGDa3xR1QnmvJBxp0BrZEJK vimdnUiJVVVAUT8Kx2Je8ntiYUnwn40c3iaEIAET8iftdHDavf4cRS3wnfiCMSrwMQ55 hLn+G49VM0WdLuqQ5fvZz0AwtqGO8cj6Ufyyo= Received: by 10.204.81.220 with SMTP id y28mr1576183bkk.149.1276111021346; Wed, 09 Jun 2010 12:17:01 -0700 (PDT) Received: from debian.bg45.phnet (gprs41.swisscom-mobile.ch [193.247.250.41]) by mx.google.com with ESMTPS id v2sm30814759bkz.13.2010.06.09.12.16.59 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 09 Jun 2010 12:17:00 -0700 (PDT) Message-ID: <4C0FE8A1.6080806@gmail.com> Date: Wed, 09 Jun 2010 21:16:49 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100515 Icedove/3.0.4 MIME-Version: 1.0 To: The development of GNU GRUB References: In-Reply-To: X-Enigmail-Version: 1.0.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig5925B6D7839C1976034A2433" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Subject: Re: grub2 uefi disk cache X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 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: Wed, 09 Jun 2010 19:21:49 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig5925B6D7839C1976034A2433 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 06/08/2010 03:24 PM, KESHAV P.R. wrote: > Is this change needed? I have about 4-5 sec gap between "Welcome to > GRUB" and the GRUB2 boot menu in UEFI x86_64. > > =20 There is no reason for making this platform-specific. I once made a patch which scales cache in proportion to available free memory. http://lists.gnu.org/archive/html/grub-devel/2009-03/msg00143.html That patch increased core size and it wasn't ever proved that it results in measurable boot time decrease. If you benchmark the patch and provide the results that patch can be applied. Also some (U)EFI implementations have a following bug: they take very long time to read sector if you do too much read in the row. I suppose it doesn't respect some kind of HD timings and operation request isn't accepted by hardware and so EFI waits till it timeouts to notice it. On such EFI implementations, adding grub_millisleep to grub_efidisk_read makes it work faster > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel > > =20 --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enig5925B6D7839C1976034A2433 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREKAAYFAkwP6KgACgkQNak7dOguQgkbyQEAjXhyZcHSfAKkRF+Uvz6+Shiy 25ISTKzFH/fS9xyKN2wBAJGzcQAyZnwrc0XGOw1I0upsk4GdSy3pLgGa2ADiDbw4 =+WuW -----END PGP SIGNATURE----- --------------enig5925B6D7839C1976034A2433--