unsafe Scalar::struct_unchecked in scalar_at vtable#6741
Merged
joseph-isaacs merged 6 commits intodevelopfrom Mar 3, 2026
Merged
unsafe Scalar::struct_unchecked in scalar_at vtable#6741joseph-isaacs merged 6 commits intodevelopfrom
joseph-isaacs merged 6 commits intodevelopfrom
Conversation
Signed-off-by: Baris Palaska <barispalaska@gmail.com>
Merging this PR will improve performance by 18%
Performance Changes
Comparing 
Footnotes
|
Signed-off-by: Baris Palaska <barispalaska@gmail.com>
Signed-off-by: Baris Palaska <barispalaska@gmail.com>
Signed-off-by: Baris Palaska <barispalaska@gmail.com>
palaska
changed the title
Signed-off-by: Baris Palaska <barispalaska@gmail.com>
joseph-isaacs
added
the
action/benchmark
github-actions
bot
removed
the
action/benchmark
Contributor
|
Lets run benchmarks and merge |
Contributor
Polar Signals Profiling ResultsLatest Run
Powered by Polar Signals Cloud |
Contributor
Benchmarks: PolarSignals ProfilingSummary
Detailed Results Table
|
Contributor
Benchmarks: TPC-H SF=1 on NVMESummary
Detailed Results Table
|
Contributor
Benchmarks: FineWeb NVMeSummary
Detailed Results Table
|
Contributor
Benchmarks: TPC-DS SF=1 on NVMESummary
Detailed Results Table
|
Contributor
Benchmarks: TPC-H SF=1 on S3Summary
Detailed Results Table
|
Contributor
Benchmarks: TPC-H SF=10 on NVMESummary
Detailed Results Table
|
Contributor
Benchmarks: FineWeb S3Summary
Detailed Results Table
|
Contributor
Benchmarks: Random AccessSummary
Detailed Results Table
|
Contributor
Benchmarks: Statistical and Population GeneticsSummary
Detailed Results Table
|
Contributor
Benchmarks: TPC-H SF=10 on S3Summary
Detailed Results Table
|
Contributor
Benchmarks: Clickbench on NVMESummary
Detailed Results Table
|
Contributor
Benchmarks: CompressionSummary
Detailed Results Table
|
joseph-isaacs
approved these changes
Mar 3, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Scalar::struct_collects field scalars into aVec<Scalar>before dtype-checking them, then collects again into the final value list — two allocations per row.Add
Scalar::struct_unchecked(acceptsimpl IntoIterator) that skips the checks and does a single allocation. TheStructVTable::scalar_atvtable already guarantees index is in-bounds and non-null, and each field'sscalar_atreturns the correct dtype, so the unchecked path is safe there.