benchmark with bolt, goleveldb, pogreb for writing

bolt.go

package main

import (
	"fmt"
	"log"

	"github.com/boltdb/bolt"
)

func main() {
	db, err := bolt.Open("boltdb", 0600, nil)
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	db.Update(func(tx *bolt.Tx) error {
		b, err := tx.CreateBucketIfNotExists([]byte("MyBucket"))
		if err != nil {
			return err
		}
		for i := 0; i < 100000; i++ {
			b.Put([]byte(fmt.Sprintf("foo%06d", i)), []byte("bar"))
		}
		return nil
	})
}

goleveldb.go

package main

import (
	"fmt"
	"log"

	"github.com/syndtr/goleveldb/leveldb"
)

func main() {
	db, err := leveldb.OpenFile("goleveldb", nil)
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	for i := 0; i < 100000; i++ {
		db.Put([]byte(fmt.Sprintf("foo%06d", i)), []byte("bar"), nil)
	}
}

pogreb.go

package main

import (
	"fmt"
	"log"

	"github.com/akrylysov/pogreb"
)

func main() {
	db, err := pogreb.Open("pogrebdb", nil)
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	for i := 0; i < 100000; i++ {
		db.Put([]byte(fmt.Sprintf("foo%06d", i)), []byte("bar"))
	}
}

bolt

real    0.512
system  0.046
user    0.312

goleveldb

real    0.823
system  0.265
user    0.405

pogreb

real    5.687
system  2.527
user    0.686

Correct me if I'm wrong, but it looks like the boltdb update is wrapped in a single transaction which should give it an unfair advantage.

Keep in mind Pogreb v0.8 doubled write performance on non-Windows.