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=-5.8 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, 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 63DA21F670 for ; Mon, 25 Oct 2021 20:57:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234594AbhJYU70 (ORCPT ); Mon, 25 Oct 2021 16:59:26 -0400 Received: from smtp.hosts.co.uk ([85.233.160.19]:18463 "EHLO smtp.hosts.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234704AbhJYU7U (ORCPT ); Mon, 25 Oct 2021 16:59:20 -0400 Received: from host-84-13-154-214.opaltelecom.net ([84.13.154.214] helo=[192.168.1.37]) by smtp.hosts.co.uk with esmtpa (Exim) (envelope-from ) id 1mf71c-000A9m-Dh; Mon, 25 Oct 2021 21:56:56 +0100 Message-ID: Date: Mon, 25 Oct 2021 21:56:56 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.1 Subject: Re: [Summit topic] Let's have chalk talks (part 1/?) Content-Language: en-GB To: git@vger.kernel.org References: From: Philip Oakley Cc: Johannes Schindelin , Emily Shaffer In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On 22/10/2021 08:51, Johannes Schindelin wrote: > Apparently I have to send this in chunks, to fool the Bayes filter of our > beloved mailing list into doing The Right Thing. > > This session was led by Emily Shaffer. Supporting cast: Ævar Arnfjörð > Bjarmason, brian m. carlson, CB Bailey, and Junio Hamano. > > Notes: > > 1. What’s a public chalk talk? > > 1. At Google, once a week, the team meets up with no particular topic in > mind, or a couple topics, very informal > > 2. One person’s turn each week to give an informal talk with a white > board (not using chalk) > > 3. Topic should be technical and of interest to the presenter [...] A 'listener' perspective.. At the summit, the packfile's packing algorithm was mentioned as a historic 'chalk talk' that's now in the technical documentation. In the meantime, while chatting to a colleague about the birthday paradox and its relation to Bloom filters, I realised I didn't understand what our Bloom filters were trying to do and what they recorded. I had a look at the code and documentation, but there isn't much there about our Bloom filter implementation. A chalk talk could later be used in the same manner as the packfile discussion to show what the filters do? If there is someone who'd like to talk through what the Bloom filters are doing in Git then I'd be all ears. -- Philip