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Claude
cc73639ae5
Backlog items 4-5 close. Both-variants-in-one-run A/B at 50k, repeated with relay order reversed: every delta flipped with the order (the second-running relay won queries and ingest latency in BOTH runs), so readers=8 / mmap_size=256MiB / temp_store=MEMORY / periodic PRAGMA optimize are all noise-level on container-class hardware. The config plumbing stays (hardware-dependent, operators should measure their own box); the example config now says so explicitly. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TtDNpayEYvJH7QuPswND3A
35 lines
2.0 KiB
Markdown
35 lines
2.0 KiB
Markdown
# geode plans
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_Audited 2026-06-30. 5 plans: 4 shipped (archived), 0 in-progress, 0 queued, 1 closed (negative result)._
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Performance-focused design docs for future work. Each file is a
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self-contained sketch — problem statement, observed numbers, proposed
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fix, how to verify, risks. None of these are committed work; they're
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the queue.
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Ordered roughly by expected impact:
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| Plan | Headline gain | Status |
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| ---- | ------------- | ------ |
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| [archive/2026-05-07-event-ingestion-batching.md](archive/2026-05-07-event-ingestion-batching.md) | 5–10× write EPS via SQLite group commit + ingest pipelining | shipped (archived) |
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| [archive/2026-05-07-live-broadcast-fanout-index.md](archive/2026-05-07-live-broadcast-fanout-index.md) | >10× fanout speedup at >2 000 subscribers | shipped (archived) |
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| [archive/2026-05-07-connection-scaling.md](archive/2026-05-07-connection-scaling.md) | 2 000 → 10 000+ concurrent connections | shipped (archived) |
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| [archive/2026-05-07-negentropy-large-corpus.md](archive/2026-05-07-negentropy-large-corpus.md) | 25× lower memory + faster NEG-OPEN on M-event corpora | shipped (archived) |
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Verification target for each plan is a new method on
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`geode.perf.LoadBenchmark` (gated by `-DrunLoadBenchmark=true`) so
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regressions show up in the regular CI matrix once they're enabled.
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## Archived (shipped)
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- [archive/2026-05-07-event-ingestion-batching.md](archive/2026-05-07-event-ingestion-batching.md)
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- [archive/2026-05-07-live-broadcast-fanout-index.md](archive/2026-05-07-live-broadcast-fanout-index.md)
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- [archive/2026-05-07-connection-scaling.md](archive/2026-05-07-connection-scaling.md)
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- [archive/2026-05-07-negentropy-large-corpus.md](archive/2026-05-07-negentropy-large-corpus.md)
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## Closed (negative result)
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| Plan | Verdict |
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| ---- | ------- |
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| [2026-07-04-sqlite-knobs-ab.md](2026-07-04-sqlite-knobs-ab.md) | readers/mmap/temp_store/PRAGMA-optimize knobs: no winner on container hardware; every delta flipped with run order. Knobs ship config-gated, off by default. |
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