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Performance of chunked dataset reads is poor #49

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jamesmudd opened this issue Feb 19, 2019 · 1 comment
Closed

Performance of chunked dataset reads is poor #49

jamesmudd opened this issue Feb 19, 2019 · 1 comment

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@jamesmudd
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Currently when you read large chunked datastets the performance is bad. This is because the output array is filled element by element resulting in lots of chunk lookups and index calculations.

This could be improved very significantly if when a chunk was accessed all the available data was copied to the output array.
jamesmudd added a commit that referenced this issue Aug 19, 2019
@jamesmudd
Merge pull request #92 from jamesmudd/chunked-performance
0ca19a0 
#49 Chunked performance
@jamesmudd
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This issue has now been resolved the performance of chunked dataset reads is now very good >10x faster.

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