From debbugs-submit-bounces@debbugs.gnu.org Tue Nov 09 10:00:41 2021 Received: (at 24937) by debbugs.gnu.org; 9 Nov 2021 15:00:42 +0000 Received: from localhost ([127.0.0.1]:35329 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mkSc5-0002tQ-LZ for submit@debbugs.gnu.org; Tue, 09 Nov 2021 10:00:41 -0500 Received: from eggs.gnu.org ([209.51.188.92]:49500) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mkSbz-0002sz-Eg for 24937@debbugs.gnu.org; Tue, 09 Nov 2021 10:00:39 -0500 Received: from [2001:470:142:3::e] (port=43366 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkSbu-0007LA-5t; Tue, 09 Nov 2021 10:00:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=YgGg4qAAb/yBsquuSHScTCCAQ0J9Mc/s9vUlK504syM=; b=EBzio1+IOxncAE2aK5e8 l6OvEdwMyKpSpfslDaJz0ITc5pj6EX/raYWyCw8yKdOM01Cmf6gFhBS7CHxUQJPryYpvoDNXIHsd5 TloVs51WSDNroWBc4PoAFEoyIfvgupTqTewgX22xffAtwGWoljLgBp9n/d2Nflrr1gioTcn1SXE0O COJF3Ks5yD4TdSnt4npZYWDjGIyCH1zDYpawZezFXn4stEPLzSkF8yhu49IMZLnbNESIIMGxMj+aJ i++kIgZo3X3ykrpSmpyvR5gw1W5esduNK+gL1uGz9Ag7Qk4o1v5BFJSVPo4N1vL+RioHZvuVDFVCu YihFGkCS4UJOVw==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201]:50646 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mkSbt-0001rR-OZ; Tue, 09 Nov 2021 10:00:29 -0500 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: 24937@debbugs.gnu.org Subject: Re: bug#24937: "deleting unused links" GC phase is too slow References: <87wpg7ffbm.fsf@gnu.org> <87pmr9l76m.fsf@gnu.org> Date: Tue, 09 Nov 2021 16:00:25 +0100 In-Reply-To: <87pmr9l76m.fsf@gnu.org> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?= =?utf-8?Q?s?= message of "Tue, 09 Nov 2021 15:44:49 +0100") Message-ID: <87fss5l6gm.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 24937 Cc: Maxim Cournoyer X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) Ludovic Court=C3=A8s skribis: > On my laptop, we=E2=80=99re talking about space savings of 325=C2=A0MiB, = a tiny > fraction of my store: > > scheme@(guile-user)> (saved-space (filter (lambda (file) > (< (deduplicated-file-size file) 1024)) > l)) > $40 =3D 325914739 For files < 4=C2=A0KiB, the savings are ~2=C2=A0GiB, roughly 1% of my store. Ludo=E2=80=99.