From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id YJ5gAO3ZjmD+NwEAgWs5BA (envelope-from ) for ; Sun, 02 May 2021 18:57:17 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id YDmJN+zZjmDlNwAAbx9fmQ (envelope-from ) for ; Sun, 02 May 2021 16:57:16 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 57DA627DAF for ; Sun, 2 May 2021 18:57:16 +0200 (CEST) Received: from localhost ([::1]:40830 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ldFP8-0008El-6J for larch@yhetil.org; Sun, 02 May 2021 12:57:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41456) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ldFOq-0008Df-Ej for help-guix@gnu.org; Sun, 02 May 2021 12:56:57 -0400 Received: from mx1.dismail.de ([78.46.223.134]:39551) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ldFOm-0003tJ-Gm for help-guix@gnu.org; Sun, 02 May 2021 12:56:56 -0400 Received: from mx1.dismail.de (localhost [127.0.0.1]) by mx1.dismail.de (OpenSMTPD) with ESMTP id 881d97ce; Sun, 2 May 2021 18:56:48 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=dismail.de; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=20190914; bh=BpZl7nrsfpzmurhOWq/UoJ1bCvyKt1wvNs +pCuPhu6k=; b=q5cNOR2a2Zz3qjjtBRPvpaDUL9EGZra6NN6GVsCfHn4u2q+SUf 1CYxJFUI0Ge0iu1dd4Tfzj8Mf2f1qpjO4ZIWcu0nTOVItSLvowjDGiAtKT6YApvp herslCScGASpG/Uy8qJUEXsiWPsd+T/VwFPOM7u3ITfPsguZYfZE4ohHp2RsPPTK 4Ec+LhRk0ZQoOw+I7hS5+F0V/hdbeKvs2IHeA4jL+u5zLJA697xzL4ye5wFG4NyY rplDH3FjSJ7wwSWtQ5hKPNpK5+05NKnx+ssONx2BtlVsJsZUjeeM4tAGRh9rDA+M gKepJN31EFsZTFH8gBtP6r5A+PYj5nwTKiWQ== Received: from smtp1.dismail.de ( [10.240.26.11]) by mx1.dismail.de (OpenSMTPD) with ESMTP id 17c39213; Sun, 2 May 2021 18:56:48 +0200 (CEST) Received: from smtp1.dismail.de (localhost [127.0.0.1]) by smtp1.dismail.de (OpenSMTPD) with ESMTP id 051f1907; Sun, 2 May 2021 18:56:48 +0200 (CEST) Received: by dismail.de (OpenSMTPD) with ESMTPSA id 9c3c27aa (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); Sun, 2 May 2021 18:56:47 +0200 (CEST) From: Joshua Branson To: Mark H Weaver Cc: Leo Famulari , help-guix@gnu.org Subject: Re: What processor features does Guix support on i686? References: <87y2cxptki.fsf@netris.org> Mail-Followup-To: Mark H Weaver , Leo Famulari , help-guix@gnu.org Date: Sun, 02 May 2021 12:56:45 -0400 In-Reply-To: <87y2cxptki.fsf@netris.org> (Mark H. Weaver's message of "Sun, 02 May 2021 01:56:02 -0400") Message-ID: <87a6pd5b1u.fsf@dismail.de> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=78.46.223.134; envelope-from=jbranso@dismail.de; helo=mx1.dismail.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: "Help-Guix" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1619974636; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=JjRR+ytoTKo0GXo7bdJ2LBKnEMrsPcAV1GhvMMLEvUA=; b=gD6j5Eg2WgbARRiHlulLqtYB1l1+7fp23so78a/ODyuq37FFscRkDhzEriN9rD9lAuR4cx HxHhLyqPeE6w+btoiS64RX9Yc4vx3V4+MpWziZTR7L3Tl+iCRDO7bbfpbLvljgYFagyL5b XiTjH/ViOXaoHtN+RkCDOQlE/ECVn1WuZMtoZ2GUTwqtUMUQNYcEu21CXgIezrCo4DhCzc wCqRboZfSVS0W/58+bSEJFUMKoM4Bod8oorACA+Z5kCeMLaz6c90CqMVgU01nxrF5sDnIu 5Vd8GPS4u9HvwX3qE68cZJTSS95mv6GHZEKIuFgMdi5x8HBFU0qd4qYa0HEA4g== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1619974636; a=rsa-sha256; cv=none; b=j0a7St7/7F2Z6UxT8c5wmr2BiyB7uZKutp7tEDmu3DYiCSSzh5z36IR2+ISF5MfDemZLQ4 8Ak5epP4FVqFbiqK4wcCxbtT3hTdkehioxbzbGFoSuqxucaGnoDzefC3QtrEQBpFkQCMNE ktMpoH+a92QMiom9VcmfGCGRWiw5TL5APP3Mkk1jsw2qbx1DmxHf2sqgRJrPav8Gk+wdfw P7OzmpDXOtC0Jseb/Xnx/CAHhlHAryFEl5Bc1/YV3Cc0CVSwGazkgkzFdjRl3sln/FmK+p ZXOGUGq4l8f2Z2vXt+rjZArKtmnP1I7ru8Vzu/Hw+2dRPjw9k4fhSMHkeW4Ydw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=dismail.de header.s=20190914 header.b=q5cNOR2a; dmarc=pass (policy=reject) header.from=dismail.de; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Spam-Score: -0.66 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=dismail.de header.s=20190914 header.b=q5cNOR2a; dmarc=pass (policy=reject) header.from=dismail.de; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Queue-Id: 57DA627DAF X-Spam-Score: -0.66 X-Migadu-Scanner: scn0.migadu.com X-TUID: 188wgLm2yG3o This email list was posted on guix-devel, I'm asking this question on help-guix, because it's a help guix question and not a guix devel question... Mark H Weaver writes: > Hi Leo, > > Thanks for asking about this, and for ably taking care of our > Linux-libre packages. I'm grateful for your work on this. > > Leo Famulari writes: > >> I noticed that Linux 5.12 has a new config option regarding "Processor >> family". The default choice, Pentium-Pro (M686), is highlighted in this >> quote: >> >> ------ >> Processor family >> 1. 486SX (M486SX) (NEW) >> 2. 486DX (M486) (NEW) >> 3. 586/K5/5x86/6x86/6x86MX (M586) (NEW) >> 4. Pentium-Classic (M586TSC) (NEW) >> 5. Pentium-MMX (M586MMX) (NEW) >>> 6. Pentium-Pro (M686) (NEW) >> 7. Pentium-II/Celeron(pre-Coppermine) (MPENTIUMII) (NEW) >> 8. Pentium-III/Celeron(Coppermine)/Pentium-III Xeon (MPENTIUMIII) (NEW) >> 9. Pentium M (MPENTIUMM) (NEW) >> 10. Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon (MPENTIUM4) (NEW) >> 11. K6/K6-II/K6-III (MK6) (NEW) >> 12. Athlon/Duron/K7 (MK7) (NEW) >> 13. Opteron/Athlon64/Hammer/K8 (MK8) >> 14. Crusoe (MCRUSOE) (NEW) >> 15. Efficeon (MEFFICEON) (NEW) >> 16. Winchip-C6 (MWINCHIPC6) (NEW) >> 17. Winchip-2/Winchip-2A/Winchip-3 (MWINCHIP3D) (NEW) >> 18. AMD Elan (MELAN) (NEW) >> 19. GeodeGX1 (MGEODEGX1) (NEW) >> 20. Geode GX/LX (MGEODE_LX) (NEW) >> 21. CyrixIII/VIA-C3 (MCYRIXIII) (NEW) >> 22. VIA C3-2 (Nehemiah) (MVIAC3_2) (NEW) >> 23. VIA C7 (MVIAC7) (NEW) >> 24. Core 2/newer Xeon (MCORE2) >> 25. Intel Atom (MATOM) >> ------ I'm kind of curious, if I were to compile my own linux kernel, and I could someone select a newer processor family, would that make my kernel a little more faster? Or would it just make my kernel image a little smaller? Also my laptop is a Lenovo T400. So it doesn't exactly have NEW features. :) >> >> info: https://cateee.net/lkddb/web-lkddb/M686.html >> >> I know that, in the past, we have been careful to not require certain >> processor features on i686, such as SSE [0]. >> >> I would appreciate some guidance, both about this kernel configuration >> option, and what we have historically considered to be the "minimum >> requirements" for i686 hardware. I will put that information the manual >> so that it doesn't get lost. > [...] >> [0] https://lists.gnu.org/archive/html/guix-devel/2016-07/msg01534.html > > It's been a long while since I looked at this, and of course we may wish > to revisit the issue, but for now, I think that the right choice above > is the default one, namely: "6. Pentium-Pro (M686) (NEW)" > > Thanks again, > Mark -- Joshua Branson (joshuaBPMan in #guix) Sent from Emacs and Gnus https://gnucode.me https://video.hardlimit.com/accounts/joshua_branson/video-channels https://propernaming.org "You can have whatever you want, as long as you help enough other people get what they want." - Zig Ziglar