Danny Canter
8b39713a00
EXT4: Optimize unpack ( #378 )
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Optimize unpack a little by trying to reduce allocations in the hot
path. Today for every file we read the entire file into memory and then
pass the data blob to the ext4 writer to eventually be written to the
sparse file. Before being written to the sparse file the data is copied
*again* to a temp buffer before finally hitting write(2) in FileHandle.
This change moves things around such that we can pass an optional buffer
to the ext4 create() (so we can reuse a buffer for file writes), as well
as stops reading entire files into memory by passing the archive entry
itself (wrapped in a ReaderStream object albeit) down to the writer.
Testing with unpacking every platform for
`docker.io/jenkins/jenkins:lts` on an M1 Max:
Old Avg (5 runs): 7.43s
New Avg (5 runs): 5.31s
2025-11-03 12:22:38 -08:00
Kathryn Baldauf
a14fd26a24
Add fallback to use lstat to get file permissions in archive writer ( #337 )
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Allow different path for getting file permissions in archive writer,
gated by OS check
Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com >
2025-10-16 16:04:00 -07:00
J Logan
995a231348
Removes "all rights reserved" from license header. ( #309 )
2025-10-03 13:27:59 -07:00
Danny Canter
1992cfe779
Containerization: Reduce allocations for image subsystems ( #152 )
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Continue the allocations journey for anything that is in the codepaths
for pulling images. This time there's a couple spots in archive and ext4
we can get rid of some copies.
2025-06-18 16:11:46 -07:00
Josh Soref
c00ede68c1
fix comment misspellings ( #131 )
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This PR corrects misspellings identified by the [check-spelling
action](https://github.com/marketplace/actions/check-spelling )
The misspellings have been reported at
https://github.com/jsoref/containerization/actions/runs/15662940240/attempts/1#summary-44123291170
The action reports that the changes in this PR would make it happy:
https://github.com/jsoref/containerization/actions/runs/15662940315/attempts/1#summary-44123291367
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Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com >
2025-06-16 16:06:37 -04:00
Michael Crosby
5d2d7a1bc3
update license header removing new line ( #99 )
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Fixes #63
Signed-off-by: crosbymichael <michael_crosby@apple.com >
2025-06-12 09:57:35 -04:00
Noritaka Kobayashi
4181e50775
refactor: fix typos ( #64 )
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fix typos
2025-06-10 08:19:50 -07:00
Aditya Ramani
5f29918ecb
Add docs for ContainerizationArchive ( #28 )
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Also removes some dead code.
Signed-off-by: Aditya Ramani <a_ramani@apple.com >
2025-06-06 16:29:11 -07:00
Danny Canter
f49f668936
Updates to license headers ( #17 )
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- Capitalize containerization.
- Wrap "All rights reserved" to a new line.
Signed-off-by: Danny Canter <danny_canter@apple.com >
2025-06-05 16:16:22 -07:00
Kathryn Baldauf
502dab6108
Update containerization apple main ( #4 )
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Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com >
2025-06-05 16:15:44 -07:00
+6
3407cc3f16
initial commit
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Co-authored-by: Aditya Ramani <a_ramani@apple.com >
Co-authored-by: Agam Dua <agam_dua@apple.com >
Co-authored-by: Danny Canter <danny_canter@apple.com >
Co-authored-by: Dmitry Kovba <dkovba@apple.com >
Co-authored-by: Eric Ernst <eric_ernst@apple.com >
Co-authored-by: Evan Hazlett <ehazlett@apple.com >
Co-authored-by: Gilbert Song <gilbertsong@apple.com >
Co-authored-by: Hugh Bussell <hbussell@apple.com >
Co-authored-by: John Logan <john_logan@apple.com >
Co-authored-by: Kathryn Baldauf <k_baldauf@apple.com >
Co-authored-by: Madhu Venugopal <mvenugopal@apple.com >
Co-authored-by: Michael Crosby <michael_crosby@apple.com >
Co-authored-by: Sidhartha Mani <sidhartha_mani@apple.com >
Co-authored-by: Tanweer Noor <tnoor@apple.com >
Co-authored-by: Ximena Perez Diaz <xperez528@gmail.com >
Co-authored-by: Yibo Zhuang <yzhuang@apple.com >
2025-06-05 16:15:21 -07:00
Danny Canter