From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS53758 23.128.96.0/24 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by dcvr.yhbt.net (Postfix) with ESMTP id 6383E1F5AE for ; Wed, 5 May 2021 00:56:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231608AbhEEA44 (ORCPT ); Tue, 4 May 2021 20:56:56 -0400 Received: from pb-smtp20.pobox.com ([173.228.157.52]:60425 "EHLO pb-smtp20.pobox.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229586AbhEEA4w (ORCPT ); Tue, 4 May 2021 20:56:52 -0400 Received: from pb-smtp20.pobox.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id 593AD1268DC; Tue, 4 May 2021 20:55:56 -0400 (EDT) (envelope-from junio@pobox.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=Siwn1C5Phkt8zpnGh4YT7FIvfhD6+9KqtJedup dsc0U=; b=Glrn7nXUWYalPzu5P8ANUsKNdIu0pjquFAeKH1U9LLHtRGEOTWgLE+ 6t6QXNHRIUYwzjFKE8ftN9U9wgstVSEZO0oaemko9IEwXteF63rZrGhP511eyJAl C0R6BLWyXtr6mX2p26kIQwAinUiiMx2cIvzHAUyoWNlVeH0hrr8WY= Received: from pb-smtp20.sea.icgroup.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id 509A61268DA; Tue, 4 May 2021 20:55:56 -0400 (EDT) (envelope-from junio@pobox.com) Received: from pobox.com (unknown [34.74.119.39]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp20.pobox.com (Postfix) with ESMTPSA id 9EC351268D9; Tue, 4 May 2021 20:55:53 -0400 (EDT) (envelope-from junio@pobox.com) From: Junio C Hamano To: Jonathan Tan Cc: me@ttaylorr.com, git@vger.kernel.org, peff@peff.net, dstolee@microsoft.com Subject: Re: [PATCH 22/22] p5326: perf tests for MIDX bitmaps References: <20210504180058.2988580-1-jonathantanmy@google.com> Date: Wed, 05 May 2021 09:55:52 +0900 In-Reply-To: <20210504180058.2988580-1-jonathantanmy@google.com> (Jonathan Tan's message of "Tue, 4 May 2021 11:00:58 -0700") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Pobox-Relay-ID: A4A23278-AD3C-11EB-AE5D-E43E2BB96649-77302942!pb-smtp20.pobox.com Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Jonathan Tan writes: >> There is slight overhead in "simulated clone", "simulated partial >> clone", and "clone (partial bitmap)". Unsurprisingly, that overhead is >> due to using the MIDX's reverse index to map between bit positions and >> MIDX positions. > > Thanks - it's great to see that accessing a MIDX bitmap doesn't add much > overhead (as compared to accessing a single-pack bitmap of the same > size). > > All the remaining patches up to and including this one look good. > Overall, I did have some comments here and there, but I am happy with > the overall design. Thanks for a review.