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rendro merged 1 commit into from
Feb 8, 2026
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Update README with latest benchmark results #53

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32 changes: 18 additions & 14 deletions README.md
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Expand Up @@ -11,20 +11,20 @@ Combines vector search, a relationship graph, and access tracking into a unified
## Why Sediment?

- **Single binary, zero config** — no Docker, no Postgres, no Qdrant. Just `sediment`.
- **Sub-16ms recall** — local embeddings and vector search at 100 items, no network round-trips.
- **50ms store, 103ms recall** — local embeddings and vector search at 1K items, no network round-trips.
- **4-tool focused API** — `store`, `recall`, `list`, `forget`. That's it.
- **Works everywhere** — macOS (Intel + ARM), Linux x86_64. All data stays on your machine.

### Comparison

| | Sediment | OpenMemory MCP | mcp-memory-service |
|---|---|---|---|
| Install | Single binary | Docker + Postgres + Qdrant | Python + pip |
| Dependencies | None | 3 services | Python runtime + deps |
| Tools | 4 | 10+ | 24 |
| Embeddings | Local (all-MiniLM-L6-v2) | API-dependent | API-dependent |
| Graph features | Built-in | No | No |
| Memory decay | Built-in | No | No |
| | Sediment | ChromaDB | Mem0 | MCP Memory Svc |
|---|---|---|---|---|
| Install | Single binary | Python + pip | Docker + Postgres + Qdrant | Python + pip |
| Tools | 4 | API | 4 | 12 |
| R@1 | **50%** | 47% | 47% | 38% |
| Recency@1 | **100%** | 14% | 14% | 10% |
| Dedup | **99%** | 0% | 0% | 0% |
| Store p50 | 50ms | 692ms | 14ms | 2ms |

## Install

Expand Down Expand Up @@ -182,12 +182,16 @@ All local, embedded, zero config:

## Performance

Sub-16ms recall at 100 items with full graph features enabled. See [BENCHMARKS.md](BENCHMARKS.md) for detailed numbers.
Benchmarked against 5 alternatives with 1,000 memories and 200 queries. See [BENCHMARKS.md](BENCHMARKS.md) for full results.

| DB Size | Graph Off | Graph On |
|---------|-----------|----------|
| 100 | ~12ms | ~15ms |
| 1,000 | ~36ms | ~65ms |
| Metric | Sediment | ChromaDB | Mem0 |
|--------|----------|----------|------|
| R@1 | **50%** | 47% | 47% |
| MRR | **62%** | 61% | 61% |
| Recency@1 | **100%** | 14% | 14% |
| Dedup | **99%** | 0% | 0% |
| Store p50 | 50ms | 692ms | 14ms |
| Recall p50 | 103ms | 694ms | 8ms |

### Data Location

Expand Down