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#15868 PR: Optimise DisjunctionMaxBulkScorer
1.3 days ago  5 comments  0 votes  0 watches  github-actions[bot], iprithv, jpountz, uschindler
Description: Made two optimisations here: **1. Reuse inner LeafCollector** : The anonymous LeafCollector was allocated inside the inner do-while ... Moved to a reusable field (innerCollector), eliminating per-window allocations and GC pressure.
    iprithv 1.3 days ago:  Hi @jpountz @uschindler, just a quick nudge on this one.
    iprithv 10.6 days ago:  sure thanks @uschindler, @jpountz, could you please help review this? Thanks!

#15861 PR: Optimise phrasescorer matches
1.3 days ago  5 comments  0 votes  0 watches  github-actions[bot], iprithv, romseygeek
# Description Optimise **PhraseScorer** in **ScoreMode.TOP_SCORES** by short-circuiting ... . # Behaviour In **PhraseScorer.TwoPhaseIterator.matches()**: 1.
    romseygeek 3.1 days ago:  Thanks @iprithv, this looks great! I left a couple of comments.
    romseygeek 3.1 days ago:  Can we add benchmarks to check that there isn't an adverse impact on COMPLETE and COMPLETE_NO_SCORES ...

#15968: Generalize jmh-table.py into a reusable visualization for any JMH benchmark
1.7 days ago  0 comments  0 votes  0 watches  gsmiller, mikemccand, neoremind
Description Spinoff from 15950 as @mikemccand suggested. The jmh-table.py visualization introduced in this PR for ScoreDoc sort benchmark is really cool, ... One enhancement is: the script currently hardcodes size and distribution which ties specifically to ...

#15950 PR: Add JMH benchmark comparing various sort algorithms specifically for sorting ScoreDoc[] of varying ...
2.7 days ago  16 comments  0 votes  0 watches  gsmiller, mikemccand, neoremind, zihanx
[Spinoff from @zihanx's recent PR (15803) adding ReaderUtil.partitionByLeaf helper to collate any ... TL;DR: see this cool benchmark results UI testing various algorithms to sort ScoreDoc[] (smaller is ... The hits from a Lucene query (ScoreDoc[]) come out sorted by something important to the user (e.g. ...
    neoremind 2.7 days ago:  Nice work on the benchmark + visualization! One thing I noticed: jmh-table.py currently hardcodes size and distribution as the param dimensions ... If the script is meant to be general-purpose, would it make sense to auto-discover @Param attribute ...
    mikemccand 3.8 days ago:  Ooh good catch, you're right -- Lucene hits would never duplicate docid.

#15967: The InfoStream progress lines from concurrent HNSW merging report duplicate times
2.8 days ago  1 comments  0 votes  0 watches  mikemccand
I'm digging into nightly benchy and concurrent HNSW merging, trying to extend segment traces to ... InfoStream has these useful lines: ` HNSW 0 [2026-04-15T14:58:00.633261871Z; hnsw-merge-1-thread- ... Here's the source: ` private long printGraphBuildStatus(int node, long start, long t) { long ...
    mikemccand 2.8 days ago:  Related: it would be helpful if each work unit (2048 vectors inserted into the graph) InfoStream'd ... Then we could derive the "effective concurrency" by summing all those times that contributed to one ...

#15732 PR: Prevent writing vectors twice during merging HNSW graphs
2.8 days ago  43 comments  0 votes  0 watches  benwtrent, github-actions[bot], iverase, mccullocht, msokolov
This PR is just addressing the following suggestion from Adrien when merging https://github.com/ ... This version only supports un-quantised vectors because for quantise vectors the logic is a bit ... The key aspects of this implementation are: 1.- KnnVectorsWritermergeOneField returns now an ...
    iverase 2.9 days ago:  makes sense, done.
    github-actions[bot] 3.4 days ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!

#15960 PR: Move parent field from DWPT to IndexingChain
2.9 days ago  2 comments  0 votes  0 watches  ChrisHegarty, Tim-Brooks, dnhatn, github-actions[bot], mikemccand, romseygeek
The parent field (used for block indexing) was previously managed by DWPT: it created a ... Move ownership of the parent field into IndexingChain, where field schemas and processing already ... The parent field and its PerField are created once in the IndexingChain constructor, and ...
    ChrisHegarty 2.9 days ago:  I agree with @romseygeek, but otherwise LGTM
    romseygeek 4 days ago:  Presumably we originally thought that there would be other reserved fields which never appeared? This makes sense to me, but I'd like to get eyes from somebody more familiar with IndexingChain - @ ...

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