Issues

• Metrics: a wide read spends its time on labels, JSON and per-chunk decode setup in both index modes; the index is a small part

  performance
  awksedgreep/timeless-libsql#149 · Filter by author awksedgreep opened on Oct 11, 2026
  1

• Metrics: decode a read's chunks in parallel

  performance
  awksedgreep/timeless-libsql#147 · Filter by author awksedgreep opened on Oct 11, 2026

• Metrics: series creation costs 1.6–2.4× more with the on-disk label index (22–32 µs vs 13.5 µs per new series at 2M)

  enhancementperformance
  awksedgreep/timeless-libsql#136 · Filter by author awksedgreep opened on Oct 10, 2026
  2

• Logs: an exact-match filter on a field other than level scans the stretch (kind:= 178 ms, service:= 565 ms, VictoriaLogs ~1–12 ms)

  performance
  awksedgreep/timeless-libsql#130 · Filter by author awksedgreep opened on Oct 8, 2026

• Metrics: smaller per-sweep costs (delete refcounts, transition lock across encode, maintenance timer bursts)

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#125 · Filter by author awksedgreep opened on Oct 7, 2026
  3

• Metrics rollups: build coarser tiers from finer buckets; skip groups with nothing due without a range query

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#123 · Filter by author awksedgreep opened on Oct 7, 2026
  3

• Delete by scope: remove what matches labels between two times, from each plane

  enhancementnice-to-have
  awksedgreep/timeless-libsql#117 · Filter by author awksedgreep opened on Oct 4, 2026

• Metrics: an exact-name query costs more as the whole catalog grows, not only as its own series do

  enhancementperformance
  awksedgreep/timeless-libsql#116 · Filter by author awksedgreep opened on Oct 4, 2026
  3

• Perf: flush holds global locks across sort+encode+SQLite I/O

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#115 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Perf: decode_str clones String per occurrence; selected still full-decompresses

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#113 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Perf: regex compiled per query, executed per candidate series

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#112 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Perf: flatjson copies input to Vec<char> on every parse

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#111 · Filter by author awksedgreep opened on Oct 3, 2026
  2

• Perf: ingest_batch repacks Vec<u8> then re-parses it

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#110 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Perf: batch range query per-series B-tree walk + clone + full decode + sort

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#109 · Filter by author awksedgreep opened on Oct 3, 2026
  2

• Perf: 2-3x serde_json parse+serialize per single-row log insert

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#107 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Perf: per-term single-row INSERT loop on flush

  enhancementnice-to-haveperformance
  awksedgreep/timeless-libsql#106 · Filter by author awksedgreep opened on Oct 3, 2026
  1

• Traces: the trace-id index costs about 24 bytes a span, half of what the spans themselves take after compression

  nice-to-have
  awksedgreep/timeless-libsql#96 · Filter by author awksedgreep opened on Oct 3, 2026

• Metrics: a PromQL __name__ regex costs a walk of the whole catalog, where an exact name costs a lookup

  enhancementperformance
  awksedgreep/timeless-libsql#95 · Filter by author awksedgreep opened on Oct 2, 2026
  1

• Metrics and traces: a retention: command, as logs have, so a host can change a window without recreating the store

  enhancementnice-to-have
  awksedgreep/timeless-libsql#91 · Filter by author awksedgreep opened on Sep 30, 2026

• PromQL: a bare instant selector is charged every point in its lookback, and is refused at the default lookback where count() of it is not

  bugneeds-decision
  awksedgreep/timeless-libsql#90 · Filter by author awksedgreep opened on Sep 30, 2026

• Metrics: a series whose samples and rollups have all expired stays in the catalog

  enhancementnice-to-have
  awksedgreep/timeless-libsql#86 · Filter by author awksedgreep opened on Sep 30, 2026
  1

• A body that is sent twice is stored twice

  bugneeds-decision
  awksedgreep/timeless-libsql#85 · Filter by author awksedgreep opened on Sep 29, 2026

• Metrics import answers 204 to lines it could not read, and says how many only in /health

  bugneeds-decision
  awksedgreep/timeless-libsql#84 · Filter by author awksedgreep opened on Sep 29, 2026

• No way to end a series: a staleness marker over text import, honored by PromQL

  enhancementnice-to-have
  awksedgreep/timeless-libsql#83 · Filter by author awksedgreep opened on Sep 29, 2026

• Stream/page metric discovery instead of materializing the full catalog

  nice-to-have
  awksedgreep/timeless-libsql#78 · Filter by author awksedgreep opened on Sep 26, 2026
  1