redis-hash-benchmark.go

package main

import (
	"context"
	"fmt"
	"time"

	"github.com/redis/go-redis/v9"
)

var ctx = context.Background()

const totalReqs = 10000

var rdb = redis.NewClient(&redis.Options{
	Addr:     "localhost:6379",
	Password: "", // no password set
	DB:       8,  // use default DB
})

func init() {
	// create {totalReqs} keys
	for i := 0; i < totalReqs; i++ {
		key := fmt.Sprintf("key:%d", i)
		rdb.Set(ctx, key, fmt.Sprintf("%d", i), 10)
		rdb.HSet(ctx, "key", fmt.Sprintf("%d", i), fmt.Sprintf("%d", i))
	}
}

func normalKeyGet() {
	start := time.Now()
	for i := 0; i < totalReqs; i++ {
		key := fmt.Sprintf("key:%d", i)
		rdb.Get(ctx, key)
	}
	fmt.Println("normalKeyGet: ", time.Since(start))
}

func hashKeyGet() {
	start := time.Now()
	for i := 0; i < totalReqs; i++ {
		rdb.HGet(ctx, "key", fmt.Sprintf("%d", i))
	}
	fmt.Println("hashKeyGet: ", time.Since(start))
}

func main() {
	normalKeyGet()
	hashKeyGet()
}

The two methods are equivalent in the performance

normalKeyGet:  370.260468ms
hashKeyGet:  376.055465ms