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From: Derrick Stolee <stolee@gmail.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	git <git@vger.kernel.org>,
	"Git for human beings" <git-users@googlegroups.com>
Cc: Christian Couder <christian.couder@gmail.com>
Subject: Re: How de-duplicate similar repositories with alternates
Date: Tue, 4 Dec 2018 09:17:20 -0500	[thread overview]
Message-ID: <c8a2b2c7-e8f1-3da2-cb39-5f7bd22d1818@gmail.com> (raw)
In-Reply-To: <87sgzdv2gz.fsf@evledraar.gmail.com>

On 12/4/2018 8:35 AM, Ævar Arnfjörð Bjarmason wrote:
>   The leftover space
> spent is the commit-grah (not de-duped like objects are), and...

The commit-graph could be shared, as the commits in each enlistment can 
be parsed from local with GENERATION_NUMBER_INFINITY, giving us similar 
speedups.

The issue is: who updates the file? As the commit-graph gets behind, 
performance will degrade. But it seems like you'd need similar 
maintenance on the alternate object store, anyway.

Thanks,
-Stolee

      reply	other threads:[~2018-12-04 14:17 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-29 14:59 How de-duplicate similar repositories with alternates Ævar Arnfjörð Bjarmason
2018-11-29 16:09 ` Ævar Arnfjörð Bjarmason
2018-11-29 18:55 ` Stefan Beller
2018-11-29 20:10   ` Ævar Arnfjörð Bjarmason
2018-11-29 20:43     ` Duy Nguyen
2018-12-04  7:06   ` Jeff King
2018-12-04 12:07     ` Derrick Stolee
2018-12-04  6:59 ` Jeff King
2018-12-04 10:43   ` Ævar Arnfjörð Bjarmason
2018-12-04 13:27     ` [PATCH 0/3] sha1-file: warn if alternate is a git repo (not object dir) Ævar Arnfjörð Bjarmason
2018-12-04 13:27     ` [PATCH 1/3] sha1-file: test the error behavior of alt_odb_usable() Ævar Arnfjörð Bjarmason
2019-03-28 20:04       ` [PATCH v2] " Ævar Arnfjörð Bjarmason
2019-03-29 13:46         ` Jeff King
2019-03-29 13:55           ` Ævar Arnfjörð Bjarmason
2019-04-08 15:57             ` Ævar Arnfjörð Bjarmason
2019-04-09  8:21               ` Junio C Hamano
2019-04-09  8:45                 ` Ævar Arnfjörð Bjarmason
2019-04-09  9:43                   ` Junio C Hamano
2019-04-09 14:14                     ` Jeff King
2019-04-09  8:29               ` Junio C Hamano
2018-12-04 13:27     ` [PATCH 2/3] sha1-file: emit error if an alternate looks like a repository Ævar Arnfjörð Bjarmason
2018-12-05  3:35       ` Junio C Hamano
2018-12-05  6:10         ` Jeff King
2018-12-04 13:27     ` [PATCH 3/3] sha1-file: change alternate "error:" message to "warning:" Ævar Arnfjörð Bjarmason
2018-12-05  3:37       ` Junio C Hamano
2018-12-05  5:54         ` Jeff King
2018-12-05  3:30     ` How de-duplicate similar repositories with alternates Junio C Hamano
2018-12-04 13:35 ` Ævar Arnfjörð Bjarmason
2018-12-04 14:17   ` Derrick Stolee [this message]

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