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,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW, 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 45B741F670 for ; Mon, 25 Oct 2021 22:26:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233280AbhJYW3Q (ORCPT ); Mon, 25 Oct 2021 18:29:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232700AbhJYW3P (ORCPT ); Mon, 25 Oct 2021 18:29:15 -0400 Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FB47C061745 for ; Mon, 25 Oct 2021 15:26:52 -0700 (PDT) Received: by mail-ed1-x52d.google.com with SMTP id y12so5902834eda.4 for ; Mon, 25 Oct 2021 15:26:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=4WI2bXOK0xrCRwkKGkzBinnx60YcJz3CZrReMQhgRSI=; b=p4g5JZHRu6NIaXnMFVjfaQ20c06ABGcL6YehjF4bXScCdCWztuoGY1GkoqCes9HHyY JLPTA1LybcKWKxEpO2zdRLWoA0qSzQOgWtm2rri+TCHvHmsNgVnUXydcZYn42reMP37F gWnH2XJpRk4j44crklkOzxiZwsDnDsmEtOl0Ejq8r6Ei0kZiMl4x4ILjKbvSJQCH1DLp AokCICQY+s+SIYD5ZP24vdHNtluWhAhOXbufbd2mzRAn/3nHf6N8BvJzf9OWw35VoRb0 puQ1BQO7xkuTK7O22OyVTVEVtvLTC8XWvDcl7S/GtsxNAL5p8xl+1FeIsV71h4VncgY0 jBeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=4WI2bXOK0xrCRwkKGkzBinnx60YcJz3CZrReMQhgRSI=; b=7rU0lSnFwD4wZVn15sy8a9jMVdo6QwUqhtyG21Oj8VcCEXNPY3DaZYeUD/6lEWRNxE QpAyL6celTEseiLUFOtFz0z76NEt/Rh4hy3XX/pCjSmFWIkBiJ7Oi1KdnhH+/DqQjeGd YZ7GvxYgLCSOx6EYhKc0I72Qk17KwuKr+eThPTm5KNil6bHGE9uWcJ6sLceCG7ktm0mC hLwqYqpM6Q+du4L6OAb3InoTWjJYYg7p9uUfHwbeUVy+KUxy1BfX028LW9iH3i2grsGc 2xN4oJfonuVjHBD1QSHR2/tuIVsTvlKDYKo47jvDGq4Uz+O/Ctr64Ww5fHwbU6Q9UTlk WztA== X-Gm-Message-State: AOAM530580sdFUrX+9WvpX/m3wL1x5cWFM+rLw4TIha08Hxm9jshJhIU 9J7m2bCW7yjWdDlud6faObjPpV/dW3s= X-Google-Smtp-Source: ABdhPJzzmy9Aky9khUn2LKxp4g0xlgzQRMktuX/Hi/AcMtex2uC3OlinUiGKW8epSNClAs3q69/jxw== X-Received: by 2002:a50:da0a:: with SMTP id z10mr29302572edj.298.1635200810851; Mon, 25 Oct 2021 15:26:50 -0700 (PDT) Received: from szeder.dev (94-21-23-225.pool.digikabel.hu. [94.21.23.225]) by smtp.gmail.com with ESMTPSA id p25sm9537399edt.23.2021.10.25.15.26.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Oct 2021 15:26:50 -0700 (PDT) Date: Tue, 26 Oct 2021 00:26:48 +0200 From: SZEDER =?utf-8?B?R8OhYm9y?= To: Philip Oakley Cc: git@vger.kernel.org, Johannes Schindelin , Emily Shaffer Subject: Re: [Summit topic] Let's have chalk talks (part 1/?) Message-ID: <20211025222648.GD2101@szeder.dev> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On Mon, Oct 25, 2021 at 09:56:56PM +0100, Philip Oakley wrote: > 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. Then perhaps you might find it's worth your while to read through this: https://public-inbox.org/git/20200529085038.26008-16-szeder.dev@gmail.com/