From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pb-smtp2.pobox.com (pb-smtp2.pobox.com [64.147.108.71]) (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 D239F2EAE5 for ; Wed, 11 Sep 2024 21:32:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=64.147.108.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726090332; cv=none; b=fXHpcGyTUboSkrzslh6Tx6N9AsclYlsusSvSSc2NlPUXNfOlCPMzkAsLZF7CCdhBERHTRwz6ZLWCgK3X96cFfaradD5zHbD1fUq64BjQ53AHh04ziuf8hCOSBPHH8bLuFBRmdNqv1VyiQnrveKuittUM1M+ZkD8jxuXfgs4zE5Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726090332; c=relaxed/simple; bh=BACwT3UqvviUSr07qeaoalJp2ousQUhRumE6anPZAMU=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=mrTbkGOpvTi5zdMo1TQFEc2ixWc1iNzlSclJ/fCVPwkBzgwo/cHlS10nKi3/Rc8A26kehVX+3nbvKfVoQXru3m9VgjF6jQriNqRDwk3pvTOyLFAk4lT5mHVLShVbtnoc7qRAY90FEiDGiZ2bmodCaPri2u4CrYoCdTMYjKWmsSA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=pobox.com; spf=pass smtp.mailfrom=pobox.com; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b=aVkCPocu; arc=none smtp.client-ip=64.147.108.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=pobox.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pobox.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b="aVkCPocu" Received: from pb-smtp2.pobox.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 923EA25674; Wed, 11 Sep 2024 17:32:08 -0400 (EDT) (envelope-from gitster@pobox.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=pobox.com; h=from:to:cc :subject:in-reply-to:references:date:message-id:mime-version :content-type:content-transfer-encoding; s=sasl; bh=BACwT3UqvviU Sr07qeaoalJp2ousQUhRumE6anPZAMU=; b=aVkCPocu4Q6RlLyyWijzAdp3xpI3 MlCov7Pyw2RLUkRyTUhet2iN4wvTqiCDcbAl/yFL7bNjzxe0Ax5EsJzou8hQ66Qx CPg8tuFmAE9aeXasihArUl5haaQQLtYRQQvLGk3yPk3xA2D3rPokpNzyl7jkjNoU b7gIQkMFDKQf528= Received: from pb-smtp2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 89C8525672; Wed, 11 Sep 2024 17:32:08 -0400 (EDT) (envelope-from gitster@pobox.com) Received: from pobox.com (unknown [34.125.108.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp2.pobox.com (Postfix) with ESMTPSA id 8DD1E25671; Wed, 11 Sep 2024 17:32:07 -0400 (EDT) (envelope-from gitster@pobox.com) From: Junio C Hamano To: "Derrick Stolee via GitGitGadget" Cc: git@vger.kernel.org, johannes.schindelin@gmx.de, peff@peff.net, ps@pks.im, me@ttaylorr.com, johncai86@gmail.com, newren@gmail.com, Derrick Stolee Subject: Re: [PATCH 00/30] [RFC] Path-walk API and applications In-Reply-To: (Derrick Stolee via GitGitGadget's message of "Tue, 10 Sep 2024 02:28:25 +0000") References: Date: Wed, 11 Sep 2024 14:32:05 -0700 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 X-Pobox-Relay-ID: 4BD9C56A-7085-11EF-981F-9B0F950A682E-77302942!pb-smtp2.pobox.com Content-Transfer-Encoding: quoted-printable "Derrick Stolee via GitGitGadget" writes: > One obvious issue with this current implementation is that it inlines m= uch > of the delta calculation into the "Enumerate objects" phase, and thus m= akes > it single-threaded. Na=C3=AFvely, traversal of history partitioned by paths smells embarrassingly parallelizable; it may need some post processing to make sure that the same object only appears once, though, and the devil probably is in the details ;-). Thanks for an enjoyable cover letter that pulls readers in.