From owner-freebsd-current@freebsd.org Sun Jul 15 21:00:40 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 02EC01028ADE; Sun, 15 Jul 2018 21:00:40 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from mail-it0-x242.google.com (mail-it0-x242.google.com [IPv6:2607:f8b0:4001:c0b::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6C9C397C88; Sun, 15 Jul 2018 21:00:39 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by mail-it0-x242.google.com with SMTP id j185-v6so18408981ite.1; Sun, 15 Jul 2018 14:00:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=yzClGPKyL5USDaslOY3Vn9BcrYYhufIPOiV6UVDL2fU=; b=PHuUwdPTYBnz1F2UZCO8XkNb0ahI5JYiW6ANT4LzQiFK2LVtuyBfXChOE5Bz1WW7m2 5ACc7ceOH1lUqnEaN2MLxYmwqjPxF4rbaWhKUFoOBARcSKA+xZpB49r+i51iDvgJLHH7 Gn7AkwZbqwI2ijcXTiRs1wmKP9+z6ECamhsA3mz/eWLpVurm1b7qE9dZcbKNGqtJ+gRy 7e40ovp33QMuVFLk0M4eTZlUOT/AyaQmV0GpGCahQ6MpwPM/ICwohb/ZnI6t1UQ3rJKF U+JXVuFtKiKkevzgAjx5XYEBK41zwzkG/d/pjFq9+7unb0Q0INy7gjbXr6z/NfkOuVa0 cBAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=yzClGPKyL5USDaslOY3Vn9BcrYYhufIPOiV6UVDL2fU=; b=SWnsRUACvkWT9XwvS4FOpyRvnTjzUsQerxAHesvtMtXeXuIUQeMIcZMC0Udjqai2y+ v3Zu7RGHMtDt+Ze20bbNhVZK8aXnUqGdSBOfv2zxXNXBPJhfwSMa7U5D1izRa0gMYLlL +9UZtviCvKwsiO3DIN6xNTes9tF6Jrx6WZdb6nWl4clvufGo4MzfVt1w7hrAk8x9gBp5 VsoA6tzwKDjdGdyN39wZHxZgJ6jNDpLwUg0aM1TDvhtnpR8R4EPbL2GepmhjBTg9OcSY s/1PnB7nwGGIKXV8XqDGBQGrkA97uxPnUmC73MDAPcxS+rpcvDbqpMKtTgWD0cyZi6Pp vOyA== X-Gm-Message-State: AOUpUlFdQAJG5GtOZP44jBBvCSxT43kX6NQoP+TjZhzl/YjDsXKDZnXe gwKHofdgEX62qa6gcbtbcNyw0EliHq/A2p8egL8= X-Google-Smtp-Source: AAOMgpe6vR0fg7OKPUoeka5JF6uXlc0Yc+pY9QkHJvOqFU23p4kZ2p7QZkon65nqh+VkYBqA2OWRDEVaDTc7DvKneb0= X-Received: by 2002:a02:8c94:: with SMTP id f20-v6mr12020487jak.98.1531688438369; Sun, 15 Jul 2018 14:00:38 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a02:8d2:0:0:0:0:0 with HTTP; Sun, 15 Jul 2018 14:00:37 -0700 (PDT) In-Reply-To: <4c91b1a4-ecaa-337e-c6d3-89e9d4fcaf83@missouri.edu> References: <20180715184255.4965AE50@spqr.komquats.com> <4c91b1a4-ecaa-337e-c6d3-89e9d4fcaf83@missouri.edu> From: Matthew Macy Date: Sun, 15 Jul 2018 14:00:37 -0700 Message-ID: Subject: Re: [PATCH] Recent libm additions To: "Montgomery-Smith, Stephen" Cc: Warner Losh , Cy Schubert , Ian Lepore , "K. Macy" , Steve Kargl , FreeBSD Current , "freebsd-numerics@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Sun, 15 Jul 2018 22:17:21 +0000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Jul 2018 21:00:40 -0000 On Sun, Jul 15, 2018 at 12:43 PM, Montgomery-Smith, Stephen wrote: > On 07/15/2018 02:09 PM, Warner Losh wrote: >> I'm not saying that he has a lock. I'm saying he's are domain expert and >> many mistakes can be avoided by talking to him. >> >> I'm saying we have history here, and that history, while poorly documented, >> wasn't followed. To the extent it is poorly documented, we should fix that. >> >> Warner >> > I agree that we should document the process. Maybe also include > freebsd-numerics@ on these discussions, as that is why it was created. > > But I'm really glad these changes were committed. I have found the > people tend to drag their feet a lot on numerics issues. > > Has anyone done an analysis of the OpenBSD powl functions from an > accuracy point of view? That is, to test how many ULP of error these > functions have? If not, I could give it a go, although not for several > months because life is very busy. They're also used by Julia. You might ask there first. -M