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 64D8242050 for ; Mon, 1 Sep 2025 19:53:43 +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=1756756424; cv=none; b=NX6H0jae+OHjW5beq25VBiX4O+L01+8f4qdVhXr2eN6sj/sbbKdZ/P6YOGKstj1aW7rb/LNkaliWmWTILKsXAQ2t9lqndK/u1UJQ/XyYfg/MG55DrKlFDUtdwqNDFxhEY8eBFRxBmq2huYgFc1WMag7guVFh/VCtPaIuMlb0FzM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756756424; c=relaxed/simple; bh=fuVPKtZujc1twALwzZosVHGjjbpzgwGFJ6d1NGcmTQo=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=bVlvg8Nip7wzw7RW+fDcdwOY/jo6uq3fOvbnu1SCjGGhBoQzxb7SZqkbElKNqbX+YBJcgAzm7o3k9uDPLN4N3ZfuUvzJCCKmET6MlU71DHIhxrirpGZ37vOwGWn+o/ViUTX9qsXEj1+W26eMHqLf0NlencuSCJITONqzpUJ+3aA= 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=MsOnnd8u; 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="MsOnnd8u" DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net EF1D640AE3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1756756422; bh=sxcV7YO6F/bJOSld/DB7Mb2D68TL8om4zsJ13UviEa0=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=MsOnnd8u/w/FHU1zv4oLd03U2CI/UosmrNOnWEXLvS0MKJKfw87nbp+W0dEtFfv1D P1igp1X64z374Knq/x4F/wmZJoLG79NMAGtXxBujIYKE4BX+1O424/RlEUziWYgmRb /eMO9eWg5O6ueEWaOiu6GwafEVLP+fjPL+DKYW/9AjBuSvDb1lHmqMYl5omxojhdaE ABlDr6Tm04StD3Xl9XbbGJEcDat742W2Ff4lovo6Z6xfLlIHcONxoAwnnsamtFwk30 CQC3dZvqgi7vLAZ3Pt7QuHtf0HQjHYXwnGr7MspmQw5pDh5/3ax4EaqtEAzBjhMQ+H yL1k/Fv8JvEjg== 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 EF1D640AE3; Mon, 1 Sep 2025 19:53:41 +0000 (UTC) From: Jonathan Corbet To: Mauro Carvalho Chehab , Mark Brown Cc: Randy Dunlap , Jani Nikula , 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: <20250901204635.51b81ffd@foz.lan> References: <87plcndkzs.fsf@trenco.lwn.net> <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> <20250901204635.51b81ffd@foz.lan> Date: Mon, 01 Sep 2025 13:53:41 -0600 Message-ID: <87plcax83e.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 Mauro Carvalho Chehab writes: > It should be noticed that kernel-doc doesn't run in parallel. Python > still suffers for a global big lock (called GIL). My attempts to run in > parallel actually made kernel-doc slower, but this is changing: the > next Python version is planning to get rid of GIL. So, maybe within > a year we can re-add the patches to run it in parallel. I certainly wouldn't want to discourage work in this area, but I do wonder if it would be worth the trouble; kernel-doc is nowhere near being the bottleneck in this whole process. Now, if you could multi-thread the Sphinx HTML builder... jon