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Thu, 2 May 2024 07:29:08 +0000 (UTC) Date: Thu, 2 May 2024 09:29:31 +0200 From: Patrick Steinhardt To: git@vger.kernel.org Subject: Re: [PATCH 00/11] reftable: expose write options as config Message-ID: References: Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ho3A/mDjwxaqF+Qo" Content-Disposition: inline In-Reply-To: --ho3A/mDjwxaqF+Qo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, May 02, 2024 at 08:51:27AM +0200, Patrick Steinhardt wrote: > Hi, >=20 > the reftable format has some flexibility with regards to how exactly it > writes the respective tables: >=20 > - The block size allows you to control how large each block is > supposed to be. The bigger the block, the more records you can fit > into it. >=20 > - Restart intervals control how often a restart point is written that > breaks prefix compression. The lower the interval, the less disk > space savings you get. >=20 > - Object indices can be enabled or disabled. These are optional and > Git doesn't use them right now, so disabling them may be a sensible > thing to do if you want to save some disk space. >=20 > - The geometric factor controls when we compact tables during auto > compaction. >=20 > This patch series exposes all of these via a new set of configs so that > they can be tweaked by the user as-needed. It's not expected that those > are really of much importance for the "normal" user -- the defaults > should be good enough. But for edge cases (huge repos with millions of > refs) and for hosting providers these knobs can be helpful. >=20 > This patch series applies on top of d4cc1ec35f (Start the 2.46 cycle, > 2024-04-30). Ugh. I actually intended to pull in ps/reftable-write-optim as a dependency because I know it causes conflicts. But I screwed this up as I thought that the topic was merged into "master" already, even though it has only hit "next". I'll refrain from sending a new version immediately though and will wait for reviews first. Once those are in I will pull in the above topic. 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