From: Christian Couder <christian.couder@gmail.com>
To: Patrick Steinhardt <ps@pks.im>
Cc: git <git@vger.kernel.org>, Taylor Blau <me@ttaylorr.com>,
Derrick Stolee <stolee@gmail.com>
Subject: Re: [PATCH v2 1/2] fetch-pack: use commit-graph when computing cutoff
Date: Wed, 9 Feb 2022 19:01:54 +0100 [thread overview]
Message-ID: <CAP8UFD2H-WfKRpwY7jNf=Dc0g1_Kc1adY4-c2OfkoMg3wHJCrA@mail.gmail.com> (raw)
In-Reply-To: <6fac914f0fe77df4c3058340642bea2a45a850cd.1643806143.git.ps@pks.im>
On Mon, Feb 7, 2022 at 7:03 AM Patrick Steinhardt <ps@pks.im> wrote:
> Benchmarks in a repository with about 2,1 million refs and an up-to-date
> commit-graph show a 20% speedup when mirror-fetching:
>
> Benchmark 1: git fetch --atomic +refs/*:refs/* (v2.35.0)
> Time (mean ± σ): 75.264 s ± 1.115 s [User: 68.199 s, System: 10.094 s]
> Range (min … max): 74.145 s … 76.862 s 5 runs
>
> Benchmark 2: git fetch --atomic +refs/*:refs/* (HEAD)
> Time (mean ± σ): 62.350 s ± 0.854 s [User: 55.412 s, System: 9.976 s]
> Range (min … max): 61.224 s … 63.216 s 5 runs
>
> Summary
> 'git fetch --atomic +refs/*:refs/* (HEAD)' ran
> 1.21 ± 0.02 times faster than 'git fetch --atomic +refs/*:refs/* (v2.35.0)'
The commit message and code make sense to me, but I wonder if there is
a reason why --atomic is used when fetching.
next prev parent reply other threads:[~2022-02-09 18:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-28 10:15 [PATCH 0/2] fetch: speed up mirror-fetches with many refs Patrick Steinhardt
2022-01-28 10:17 ` [PATCH 1/2] fetch-pack: use commit-graph when computing cutoff Patrick Steinhardt
2022-01-31 22:53 ` Taylor Blau
2022-02-02 12:46 ` Patrick Steinhardt
2022-01-28 10:19 ` [PATCH 2/2] fetch: skip computing output width when not printing anything Patrick Steinhardt
2022-02-02 12:51 ` [PATCH v2 0/2] fetch: speed up mirror-fetches with many refs Patrick Steinhardt
2022-02-02 12:51 ` [PATCH v2 1/2] fetch-pack: use commit-graph when computing cutoff Patrick Steinhardt
2022-02-09 18:01 ` Christian Couder [this message]
2022-02-10 11:43 ` Patrick Steinhardt
2022-02-02 12:51 ` [PATCH v2 2/2] fetch: skip computing output width when not printing anything Patrick Steinhardt
2022-02-09 18:10 ` Christian Couder
2022-02-10 12:23 ` Patrick Steinhardt
2022-02-10 12:28 ` [PATCH v3 0/2] fetch: speed up mirror-fetches with many refs Patrick Steinhardt
2022-02-10 12:28 ` [PATCH v3 1/2] fetch-pack: use commit-graph when computing cutoff Patrick Steinhardt
2022-02-10 12:28 ` [PATCH v3 2/2] fetch: skip computing output width when not printing anything Patrick Steinhardt
2022-02-10 18:04 ` [PATCH v3 0/2] fetch: speed up mirror-fetches with many refs Junio C Hamano
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