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Revert "New Decimal <--> Floating conversion (#15905)" #16283

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Revert "New Decimal <--> Floating conversion (#15905)" #16283

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ttnghia
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@ttnghia ttnghia commented Jul 15, 2024 •
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After the PR #15905 merged, there was a performance regression reported:

We observed significant performance degradation to binary ops. We see 12-14x slowdowns in our AST benchmarks, plus 6-10x slowdowns in other binary ops.

This reverts the problematic PR (#15905), waiting for more investigation on the regression.

@ttnghia ttnghia added 3 - Ready for Review Ready for review by team libcudf Affects libcudf (C++/CUDA) code. Performance Performance related issue non-breaking Non-breaking change labels Jul 15, 2024
@ttnghia ttnghia self-assigned this Jul 15, 2024
@ttnghia ttnghia requested review from a team as code owners July 15, 2024 19:51
@github-actions github-actions bot added Python Affects Python cuDF API. Java Affects Java cuDF API. labels Jul 15, 2024
@ttnghia ttnghia added the bug Something isn't working label Jul 15, 2024
vyasr
vyasr approved these changes Jul 15, 2024
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Approving based on offline discussions indicating that we think it's safe to go ahead without rebenchmarking.

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ttnghia commented Jul 15, 2024

/merge

@ttnghia ttnghia added the 5 - DO NOT MERGE Hold off on merging; see PR for details label Jul 16, 2024
@abellina
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@ttnghia just wondering what we are waiting for in this PR.

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ttnghia commented Jul 19, 2024

@ttnghia just wondering what we are waiting for in this PR.

There seems to be another fix merged in cudf so this may no longer be needed. I'm still waiting for confirmation before closing this.

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This is the related perf fix PR: #16287. It's been merged, but still waiting for final confirmation that is fixed the issue.

@ttnghia ttnghia closed this Jul 19, 2024
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@vyasr vyasr vyasr approved these changes

@davidwendt davidwendt davidwendt approved these changes

@wence- wence- Awaiting requested review from wence- wence- is a code owner automatically assigned from rapidsai/cudf-python-codeowners

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3 - Ready for Review Ready for review by team 5 - DO NOT MERGE Hold off on merging; see PR for details bug Something isn't working Java Affects Java cuDF API. libcudf Affects libcudf (C++/CUDA) code. non-breaking Non-breaking change Performance Performance related issue Python Affects Python cuDF API.
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