FuseDB

Embedded key-value database for hot mutable state.

Русский

Performance

Comparison with Pebble (NoSync mode):

• Reads: 1.0µs vs 4.1µs
• Writes: 1.1µs vs 1.1µs
• Startup: 224ms vs 26s (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.