Date: Tue, 17 Sep 2013 23:01:07 +0800 (SGT) From: Patrick Dung <patrick_dkt@yahoo.com.hk> To: freebsd hackers <freebsd-hackers@freebsd.org> Subject: Re: About Transparent Superpages and Non-transparent superapges Message-ID: <1379430067.90602.YahooMailNeo@web193504.mail.sg3.yahoo.com> In-Reply-To: <1379354670.48990.YahooMailNeo@web193501.mail.sg3.yahoo.com> References: <1379354670.48990.YahooMailNeo@web193501.mail.sg3.yahoo.com>
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Hello, I have posted the question in freebsd-questions but have not get feedback, so I tried to asked in here. 1. Transparent Superpages was in FreeBSD for a few years. I would like to know if there is any benchmark or real world performance experience about this setting. 2. I have seen somewhere that non-transparent superpages was being developed in HEAD too. Any insight on it? Please correct me if it is not the case. Thanks and regards, Patrick Dung From owner-freebsd-hackers@FreeBSD.ORG Tue Sep 17 16:06:56 2013 Return-Path: <owner-freebsd-hackers@FreeBSD.ORG> Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 1AB3FD62 for <freebsd-hackers@freebsd.org>; Tue, 17 Sep 2013 16:06:56 +0000 (UTC) (envelope-from freebsd-hackers@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id CA6662F0F for <freebsd-hackers@freebsd.org>; Tue, 17 Sep 2013 16:06:55 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from <freebsd-hackers@m.gmane.org>) id 1VLxnW-00034e-IC for freebsd-hackers@freebsd.org; Tue, 17 Sep 2013 18:06:42 +0200 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for <freebsd-hackers@freebsd.org>; Tue, 17 Sep 2013 18:06:42 +0200 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for <freebsd-hackers@freebsd.org>; Tue, 17 Sep 2013 18:06:42 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-hackers@freebsd.org From: Ivan Voras <ivoras@freebsd.org> Subject: Re: About Transparent Superpages and Non-transparent superapges Date: Tue, 17 Sep 2013 18:06:32 +0200 Lines: 50 Message-ID: <l19um0$jvd$1@ger.gmane.org> References: <1379354670.48990.YahooMailNeo@web193501.mail.sg3.yahoo.com> <1379430067.90602.YahooMailNeo@web193504.mail.sg3.yahoo.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="----enig2VGTJGUDTUOBCQUIXXHVB" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130322 Thunderbird/17.0.4 In-Reply-To: <1379430067.90602.YahooMailNeo@web193504.mail.sg3.yahoo.com> X-Enigmail-Version: 1.5.1 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD <freebsd-hackers.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>; List-Post: <mailto:freebsd-hackers@freebsd.org> List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 17 Sep 2013 16:06:56 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2VGTJGUDTUOBCQUIXXHVB Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 17/09/2013 17:01, Patrick Dung wrote: >=20 >=20 > Hello, >=20 >=20 > I have posted the question in freebsd-questions but have not get feedba= ck, so I tried to asked in here. >=20 > 1. > Transparent Superpages was in FreeBSD for a few years. > I would like to know if there is any benchmark or real world performanc= e experience about this setting. >=20 > 2. > I have seen somewhere that non-transparent superpages was being develop= ed in HEAD too. > Any insight on it? Please correct me if it is not the case. By "non-transparent" do you mean explicit huge pages API which allows them to be allocated on-demand rather than heuristically, such as was implemented in Linux for at least 8 years (http://goo.gl/8qZX4D, https://lwn.net/Articles/375096/) and supported by major software products (http://goo.gl/prxjjo, http://goo.gl/fQOLwO, http://goo.gl/pr7Tbb, http://goo.gl/Y9qtWk, http://goo.gl/M0l7LL, etc.)? I haven't heard about it (but I hope I'm wrong :) ). ------enig2VGTJGUDTUOBCQUIXXHVB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlI4fggACgkQ/QjVBj3/HSynRACfX8k+GiFrLBHZdZ0eb8DCxZVJ fLYAn2iDGNGjvvuRXlApKQS5NjVMjWqk =4wGF -----END PGP SIGNATURE----- ------enig2VGTJGUDTUOBCQUIXXHVB--
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