Issues

• The p99 of taking a view under a write is the only direct reading of what a publish costs a reader

  area: execpriority: lowtype: performance
  tamnd/kura#197 · Filter by author tamnd opened on Aug 24, 2026 · M4 Incremental update

• The default log length is now the only number in the store nobody argues for

  area: cliarea: formatenhancementpriority: mediumtype: performance
  tamnd/kura#195 · Filter by author tamnd opened on Aug 24, 2026 · M4 Incremental update

• A query pays a fixed amount per segment it walks, and that is now the largest share of what a write costs a reader

  area: execenhancementpriority: hightype: performance
  tamnd/kura#192 · Filter by author tamnd opened on Aug 24, 2026 · M4 Incremental update

• The fold at the end of a run rewrites what the run was just holding

  area: formattype: performance
  tamnd/kura#169 · Filter by author tamnd opened on Aug 22, 2026 · M4 Incremental update
  1

• The memory and flush-every tables in the README predate the text check

  enhancement
  tamnd/kura#156 · Filter by author tamnd opened on Aug 22, 2026

• Two writers never join each other, so two threads are slower than one

  enhancement
  tamnd/kura#153 · Filter by author tamnd opened on Aug 22, 2026

• An index run holds three times what the writer says it holds, and nothing says where the rest is

  area: clipriority: mediumtype: performance
  tamnd/kura#144 · Filter by author tamnd opened on Aug 22, 2026 · M4 Incremental update

• Group commit, and naming the durability call so a commit latency means something

  area: formatpriority: hightype: correctnesstype: performance
  tamnd/kura#139 · Filter by author tamnd opened on Aug 22, 2026 · M4 Incremental update
  5

• Reclaiming the space a compaction strands

  area: formatpriority: mediumtype: feature
  tamnd/kura#132 · Filter by author tamnd opened on Aug 22, 2026 · M4 Incremental update
  1

• A merge holds the segment it is building in memory

  area: formatpriority: mediumtype: performance
  tamnd/kura#126 · Filter by author tamnd opened on Aug 22, 2026 · M4 Incremental update

• Get the mail corpus and the DL19 judgments onto this machine

  type: test
  tamnd/kura#124 · Filter by author tamnd opened on Aug 22, 2026 · M2 The lexical fix

• The wide ceilings can be built from the rounded lengths, and are not

  type: performance
  tamnd/kura#123 · Filter by author tamnd opened on Aug 22, 2026 · M2 The lexical fix

• The four byte lengths are still written for every document, and almost none of them are read

  tamnd/kura#116 · Filter by author tamnd opened on Aug 21, 2026

• The score lookup table is built once per query, so only the slowest queries pay for it

  tamnd/kura#112 · Filter by author tamnd opened on Aug 21, 2026

• verify says nothing about the key table and the filter beside it

  area: clipriority: mediumtype: feature
  tamnd/kura#110 · Filter by author tamnd opened on Aug 21, 2026 · M4 Incremental update

• The key blob is stored whole, so a store of paths pays for the same prefix thousands of times

  area: formatpriority: lowtype: performance
  tamnd/kura#107 · Filter by author tamnd opened on Aug 21, 2026 · M5 Columns, filters and phrases

• verify says nothing about the tombstone bitmaps a store now carries

  area: clipriority: mediumtype: feature
  tamnd/kura#104 · Filter by author tamnd opened on Aug 21, 2026 · M4 Incremental update

• Block bounds lose most of their tightness when segment means disagree

  area: lexicalenhancementpriority: mediumtype: performance
  tamnd/kura#95 · Filter by author tamnd opened on Aug 21, 2026

• Weigh an entropy coded block for the stored fields against what LZ4 leaves on the table

  tamnd/kura#76 · Filter by author tamnd opened on Aug 21, 2026

• A repair says how many documents it dropped and not which ones

  area: clipriority: mediumtype: feature
  tamnd/kura#73 · Filter by author tamnd opened on Aug 21, 2026 · M3 The file

• A manifest entry cannot be matched against the segment it points at

  area: formatpriority: mediumtype: correctness
  tamnd/kura#68 · Filter by author tamnd opened on Aug 21, 2026 · M3 The file
  1

• Pack the frequency stream against a wider register

  tamnd/kura#65 · Filter by author tamnd opened on Aug 21, 2026

• Design the merge policy around a write amplification budget

  area: formatpriority: highstatus: needs designtype: feature
  tamnd/kura#64 · Filter by author tamnd opened on Aug 21, 2026 · M4 Incremental update

• Define the block bound over a docid range, so a range ordered evaluator can read it later

  area: lexicalpriority: mediumstatus: needs designtype: performance
  tamnd/kura#63 · Filter by author tamnd opened on Aug 21, 2026 · M2 The lexical fix

• Peak memory while indexing tracks corpus size, and the gap to tantivy is widening

  area: execpriority: hightype: performance
  tamnd/kura#62 · Filter by author tamnd opened on Aug 21, 2026 · M8 Hardening and the Go binding
  5