FuseDB

Embedded key-value database for hot mutable state.

Русский

Performance

vs Pebble (NoSync):

• 3x faster reads — 1.3µs p50
• 1.4x faster writes — 292ns p50
• 117x faster startup — 224ms open + first read
• Atomic counters — 257ns Inc operation

Install

go get github.com/uchebnick/fusedb

Usage

db, _ := oneleafdb.OpenDB(oneleafdb.DBOptions{
    Dir:            "/tmp/db",
    CacheBytes:     5 << 20,
    ThresholdBytes: 5 << 20,
})
defer db.Close()

db.Put([]byte("key"), []byte("value"))
db.Inc([]byte("counter"), 1)
value, found, _ := db.Get([]byte("key"))

Architecture

• Lock-free skiplist buffer
• Immutable segments with LZ4 compression
• Async WAL with group commit

Details: ARCHITECTURE.md

Status

Experimental. Not production-ready.