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From: Derrick Stolee <derrickstolee@github.com>
To: Victoria Dye via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org
Cc: newren@gmail.com, gitster@pobox.com, Victoria Dye <vdye@github.com>
Subject: Re: [PATCH 0/7] Sparse index: integrate with 'git stash'
Date: Tue, 26 Apr 2022 08:49:28 -0400	[thread overview]
Message-ID: <9ff9f199-baec-80f5-41c2-17034744e527@github.com> (raw)
In-Reply-To: <pull.1171.git.1650908957.gitgitgadget@gmail.com>

On 4/25/2022 1:49 PM, Victoria Dye via GitGitGadget wrote:
> This series, in combination with the sparse index integrations of reset [1],
> update-index [2], checkout-index [2], clean [2], and read-tree [3], allows
> most subcommands of 'git stash' to use the sparse index end-to-end without
> index expansion.

I'm really excited to see this culmination of your work in this area!

> Performance results (from the 'p2000' tests):
> 
> (git stash &&
>  git stash pop)              master            this series
> ---------------------------------------------------------------------
> full-v3                      4.07(2.42+1.34)   3.98(2.42+1.32) -2.2%
> full-v4                      4.05(2.46+1.31)   4.00(2.49+1.29) -1.2%
> sparse-v3                    7.48(4.81+2.57)   1.53(0.26+1.61) -79.5%
> sparse-v4                    7.35(4.74+2.54)   1.59(0.27+1.63) -78.4%
> 
> (echo >>new &&
>  git stash -u &&
>  git stash pop)              master            this series
> ---------------------------------------------------------------------
> full-v3                      4.21(2.62+1.45)   4.11(2.55+1.44) -2.4%
> full-v4                      4.11(2.51+1.41)   4.02(2.49+1.41) -2.2%
> sparse-v3                    7.35(4.64+2.66)   1.70(0.32+1.64) -76.9%
> sparse-v4                    7.74(4.87+2.83)   1.70(0.32+1.66) -78.0%

I wanted to add some performance results from real-world users of
an internal monorepo. These are numbers for all runs of "git stash",
so it is not broken down by subcommand:

Index Type         P50     P80     P99
---------------------------------------
Full Index       13.3s   26.3s   47.5s
Sparse Index      2.1s    5.8s    9.4s

Thanks,
-Stolee

  parent reply	other threads:[~2022-04-26 12:49 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-25 17:49 Victoria Dye via GitGitGadget
2022-04-25 17:49 ` [PATCH 1/7] stash: expand sparse-checkout compatibility testing Victoria Dye via GitGitGadget
2022-04-25 17:49 ` [PATCH 2/7] stash: integrate with sparse index Victoria Dye via GitGitGadget
2022-04-25 21:34   ` Junio C Hamano
2022-04-26 12:53   ` Derrick Stolee
2022-04-26 15:26     ` Victoria Dye
2022-04-26 16:21     ` Junio C Hamano
2022-04-25 17:49 ` [PATCH 3/7] sparse-index: expose 'is_sparse_index_allowed()' Victoria Dye via GitGitGadget
2022-04-25 17:49 ` [PATCH 4/7] read-cache: set sparsity when index is new Victoria Dye via GitGitGadget
2022-04-25 21:35   ` Junio C Hamano
2022-04-25 17:49 ` [PATCH 5/7] merge-recursive: add merge function arg to 'merge_recursive_generic' Victoria Dye via GitGitGadget
2022-04-25 21:38   ` Junio C Hamano
2022-04-26 12:57     ` Derrick Stolee
2022-04-25 17:49 ` [PATCH 6/7] stash: merge applied stash with merge-ort Victoria Dye via GitGitGadget
2022-04-26 13:02   ` Derrick Stolee
2022-04-25 17:49 ` [PATCH 7/7] unpack-trees: preserve index sparsity Victoria Dye via GitGitGadget
2022-04-26 12:49 ` Derrick Stolee [this message]
2022-04-26 13:09   ` [PATCH 0/7] Sparse index: integrate with 'git stash' Derrick Stolee
2022-04-27 18:16 ` [PATCH v2 " Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 1/7] stash: expand sparse-checkout compatibility testing Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 2/7] stash: integrate with sparse index Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 3/7] sparse-index: expose 'is_sparse_index_allowed()' Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 4/7] read-cache: set sparsity when index is new Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 5/7] merge-recursive: add merge function arg to 'merge_recursive_generic' Victoria Dye via GitGitGadget
2022-05-06  7:23     ` Elijah Newren
2022-05-09 19:24       ` Victoria Dye
2022-05-10  7:06         ` Elijah Newren
2022-04-27 18:16   ` [PATCH v2 6/7] stash: merge applied stash with merge-ort Victoria Dye via GitGitGadget
2022-04-27 18:16   ` [PATCH v2 7/7] unpack-trees: preserve index sparsity Victoria Dye via GitGitGadget
2022-05-06  7:46   ` [PATCH v2 0/7] Sparse index: integrate with 'git stash' Elijah Newren
2022-05-10 23:32   ` [PATCH v3 0/6] " Victoria Dye via GitGitGadget
2022-05-10 23:32     ` [PATCH v3 1/6] stash: expand sparse-checkout compatibility testing Victoria Dye via GitGitGadget
2022-05-10 23:32     ` [PATCH v3 2/6] stash: integrate with sparse index Victoria Dye via GitGitGadget
2022-05-10 23:32     ` [PATCH v3 3/6] sparse-index: expose 'is_sparse_index_allowed()' Victoria Dye via GitGitGadget
2022-05-10 23:32     ` [PATCH v3 4/6] read-cache: set sparsity when index is new Victoria Dye via GitGitGadget
2022-05-10 23:32     ` [PATCH v3 5/6] stash: apply stash using 'merge_ort_nonrecursive()' Victoria Dye via GitGitGadget
2022-05-11  0:26       ` Junio C Hamano
2022-05-12  1:01       ` Jonathan Tan
2022-05-12 14:52         ` Elijah Newren
2022-05-12 16:55           ` Jonathan Tan
2022-05-12 14:51       ` Elijah Newren
2022-05-10 23:32     ` [PATCH v3 6/6] unpack-trees: preserve index sparsity Victoria Dye via GitGitGadget

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