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Issues list

incremental writing to a sharded array slower than without sharding. bug Potential issues with the zarr-python library performance Potential issues with Zarr performance (I/O, memory, etc.)
#3014 opened Apr 24, 2025 by iampritishpatil
3
Improve write performance of shards needs release notes Automatically applied to PRs which haven't added release notes performance Potential issues with Zarr performance (I/O, memory, etc.)
#2977 opened Apr 11, 2025 by balbasty • Draft
6 tasks
3
Codec pipeline memory usage performance Potential issues with Zarr performance (I/O, memory, etc.)
#2904 opened Mar 10, 2025 by TomAugspurger
10
Performance regression in V3 bug Potential issues with the zarr-python library performance Potential issues with Zarr performance (I/O, memory, etc.)
#2710 opened Jan 14, 2025 by y4n9squared
17
Iteration over Zarr arrays is significantly slower in v3 performance Potential issues with Zarr performance (I/O, memory, etc.)
#2529 opened Dec 3, 2024 by tomwhite
14
Unnecessarily slow writes to uncompressed arrays performance Potential issues with Zarr performance (I/O, memory, etc.) V2 Affects the v2 branch
#2518 opened Nov 26, 2024 by jbuckman
2
[v3] benchmarks and performance tools enhancement New features or improvements performance Potential issues with Zarr performance (I/O, memory, etc.)
#2034 opened Jul 13, 2024 by d-v-b
3
[v3] Performance test suite performance Potential issues with Zarr performance (I/O, memory, etc.) tests
#1763 opened Apr 5, 2024 by jhamman
In Memory performance compared to NumPy much slower performance Potential issues with Zarr performance (I/O, memory, etc.)
#1395 opened Apr 17, 2023 by nuric
6
performance optimization in delitems performance Potential issues with Zarr performance (I/O, memory, etc.)
#1336 opened Jan 31, 2023 by d-v-b
1
6
Zarr Array append method performance performance Potential issues with Zarr performance (I/O, memory, etc.)
#583 opened Aug 11, 2020 by lucabergamini
2
Rechunking zarr file on S3 becomes very slow as number of initialized chunks increase performance Potential issues with Zarr performance (I/O, memory, etc.)
#559 opened Apr 27, 2020 by mpu-creare
9
Zarr use case: problems in multi threaded access to in memory cache performance Potential issues with Zarr performance (I/O, memory, etc.)
#469 opened Aug 13, 2019 by shikharsg
8
Storage to S3, LIST operations performance Potential issues with Zarr performance (I/O, memory, etc.)
#460 opened Jul 24, 2019 by Cedric-LG
8
Potential synchronization optimization performance Potential issues with Zarr performance (I/O, memory, etc.)
#386 opened Jan 9, 2019 by alimanfoo
Layered data caching performance Potential issues with Zarr performance (I/O, memory, etc.)
#382 opened Jan 4, 2019 by jakirkham
Optimisation for the __contains__ method of storage.LRUStoreCache performance Potential issues with Zarr performance (I/O, memory, etc.)
#295 opened Aug 23, 2018 by shikharsg
1
19
ProTip! What’s not been updated in a month: updated:<2025-04-23.