From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67DAA1DC9B1 for ; Mon, 1 Sep 2025 19:51:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.79.88.28 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756756319; cv=none; b=JM+tPs4PV7VN+/boH/00r3nqSLTcNwAQTLsUlYlkpSCiMYEeDzQl0S0nn/Hjpw78Kgbwwy+8JBkAhqSyj2DJ0CczJv7GmmOBHhGqMM5swAT47XV7SWP+Pa/epnUGZhoP/HauOlUnYac/RFxhUCQ8wNyehL2TnV8QfxCuamNqjLA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756756319; c=relaxed/simple; bh=4iRYmzvqrwZE5Atj6cj0A2VXWDTU24w+stjnHfmtO+M=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=kh7viOrAIwE3icB3gKqr+bRihrkyPgL9HRSLTRUeXCcS4Vmk/SM7iAymXpQFMl9WrOFXUSF6l2UxNUv7D+DKHHX+nYfPP07TZkuNS+JbsLy5RDfxA0T78GYRaaB2yk2jUuF7F066HZl+FjY3A74uqIUUO6kSz2Ib1POXcsLuPRo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net; spf=pass smtp.mailfrom=lwn.net; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b=grDFTlE+; arc=none smtp.client-ip=45.79.88.28 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lwn.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b="grDFTlE+" DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 47D1740AE3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1756756316; bh=arVsE4h69hTi+f1tA/3SNP/Def6zuK4ELAa02F+0msw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=grDFTlE+kdlSSyIhDZTqzx7VPiPq6HQLxmpeu9FCA0LFWZy75hBHiUuHO3dGoLgTj s9XrLZi7eywHH4RQG3UCupk5fSiINqaYd6COKDxMKIDYmjiuQLVoi2gO0AWVUaGQZj 3jZQOf8pDGzo8aQgKfEJIBT12Xkgi2XYtTdKb+SbFU0hYwz9XBOte61o+4IYkDXvg7 9B0ysOl368Kl/RBc0BPY4ZKsWH+eDg7J3Qsmo7udiYuNLKj+aFzuynm6qfnmB6QfRR Xy2qaaQ2i6qXbLYEZXbuOv4VPxonXz6VLy8l/zKkdEgp2tL4aDV8E82+IuUXmz65KT 0eYX0A3+9Ej+Q== Received: from localhost (unknown [IPv6:2601:280:4600:2da9::1fe]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 47D1740AE3; Mon, 1 Sep 2025 19:51:56 +0000 (UTC) From: Jonathan Corbet To: Mark Brown Cc: Randy Dunlap , Jani Nikula , Mauro Carvalho Chehab , Laurent Pinchart , Vegard Nossum , ksummit@lists.linux.dev, Linux Documentation , Mauro Carvalho Chehab , Akira Yokosawa , Bagas Sanjaya , Matthew Wilcox Subject: Re: [TECH TOPIC] Kernel documentation - update and future directions In-Reply-To: <7f507a0e-3493-4b9f-a6b9-912efe49e5ba@sirena.org.uk> References: <20250828230104.GB26612@pendragon.ideasonboard.com> <87wm6l0w2y.fsf@trenco.lwn.net> <930d1b37-a588-43db-9867-4e1a58072601@oracle.com> <20250830222351.GA1705@pendragon.ideasonboard.com> <87h5xo1k6y.fsf@trenco.lwn.net> <20250831160339.2c45506c@foz.lan> <2f927f53-9af5-4e0c-be8f-f7bdf90e23ff@sirena.org.uk> <873496yqqt.fsf@trenco.lwn.net> <7f507a0e-3493-4b9f-a6b9-912efe49e5ba@sirena.org.uk> Date: Mon, 01 Sep 2025 13:51:55 -0600 Message-ID: <87tt1mx86c.fsf@trenco.lwn.net> Precedence: bulk X-Mailing-List: ksummit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Mark Brown writes: > On Mon, Sep 01, 2025 at 12:25:30PM -0600, Jonathan Corbet wrote: >> Mark Brown writes: > >> > make -j56 htmldocs 2355.99s user 141.33s system 158% cpu 26:14.86 total > >> That ... is weird... it takes me a little under 3 minutes to do an >> htmldocs build, using a capable but not stellar desktop machine. > >> Which version of Sphinx are you using? If you're not on Sphinx 8, you >> really want to be; they finally fixed some really nasty performance >> problems with that release. > > I appear to be on version 5.3 which is what's in my distro. I will get > 8.1.3 when I upgrade, I don't really have any intention of manually > installing an unpackaged copy. That version will be far slower, certainly. Just FWIW, installing a newer version in a venv is trivially easy to do. jon