… a Redis client for the Go programming language.
- Boring API with full type-safety
- Automatic pipelining on concurrency
- High throughput despite low footprint
- Efficient OS and network utilisation
- Robust error recovery
Network I/O is executed in the same goroutine that invoked the Client. There is no internal error reporting/logging by design.
This is free and unencumbered software released into the public domain.
// Redis is a thread-safe client.
var Redis = redis.NewClient("localhost", time.Second, time.Second)
// Grow adds a string to a list.
func Grow() {
newLen, err := Redis.RPUSHString("demo_list", "foo")
if err != nil {
log.Print("demo_list update error: ", err)
return
}
log.Printf("demo_list has %d elements", newLen)
}
// Ping pushes a message to a publish–subscribe channel.
func Ping() {
clientCount, err := Redis.PUBLISHString("demo_channel", "ping")
if err != nil {
log.Print("demo_channel publish error: ", err)
return
}
log.Printf("pinged %d clients in demo_channel", clientCount)
}Pub/Sub With Go Channels
// RedisListener is a thread-safe registry.
var RedisListener := Redis.NewListener()
func main() {
time.AfterFunc(time.Minute, func() {
log.Print("shutdown")
RedisListener.Close()
})
for err := range RedisListener.Errs {
log.Print("subscription error: ", err)
}
log.Print("closed")
}
// Peek receives messages from a publish–subscribe channel.
func Peek() {
messages, UNSUBSCRIBE := RedisListener.SUBSCRIBE("demo_channel")
time.AfterFunc(10*time.Second, UNSUBSCRIBE)
for bytes := range messages {
log.Printf("got message %q", bytes)
}
log.Print("unsubscribed")
}The following results were measured on a i5-7500 with TCP.
name time/op
SimpleString/sequential-4 31.1µs ± 1%
SimpleString/parallel-4 9.88µs ± 5%
Integer/sequential-4 30.4µs ± 2%
Integer/parallel-4 9.46µs ± 5%
Bulk/8B/sequential/bytes-4 30.5µs ± 1%
Bulk/8B/sequential/string-4 30.4µs ± 1%
Bulk/8B/parallel/bytes-4 9.55µs ± 4%
Bulk/8B/parallel/string-4 9.67µs ± 2%
Bulk/800B/sequential/bytes-4 31.9µs ± 1%
Bulk/800B/sequential/string-4 31.8µs ± 0%
Bulk/800B/parallel/bytes-4 10.7µs ± 4%
Bulk/800B/parallel/string-4 10.7µs ± 8%
Bulk/24000B/sequential/bytes-4 42.5µs ± 0%
Bulk/24000B/sequential/string-4 58.0µs ± 0%
Bulk/24000B/parallel/bytes-4 19.0µs ± 7%
Bulk/24000B/parallel/string-4 37.4µs ± 0%
Array/1×8B/sequential/bytes-4 32.8µs ± 1%
Array/1×8B/sequential/string-4 32.7µs ± 0%
Array/1×8B/parallel/bytes-4 10.5µs ± 6%
Array/1×8B/parallel/string-4 10.3µs ± 7%
Array/12×8B/sequential/bytes-4 33.3µs ± 1%
Array/12×8B/sequential/string-4 32.8µs ± 1%
Array/12×8B/parallel/bytes-4 11.1µs ± 8%
Array/12×8B/parallel/string-4 11.0µs ± 7%
Array/144×8B/sequential/bytes-4 50.9µs ± 0%
Array/144×8B/sequential/string-4 50.6µs ± 0%
Array/144×8B/parallel/bytes-4 20.7µs ± 5%
Array/144×8B/parallel/string-4 20.6µs ± 9%
PubSub/8B/1publishers-4 33.4µs ± 0%
PubSub/8B/2publishers-4 20.1µs ± 4%
PubSub/8B/16publishers-4 4.55µs ± 5%
PubSub/800B/1publishers-4 34.3µs ± 0%
PubSub/800B/2publishers-4 20.8µs ± 6%
PubSub/800B/16publishers-4 5.55µs ±11%
PubSub/24000B/1publishers-4 44.4µs ± 1%
PubSub/24000B/2publishers-4 34.4µs ± 4%
PubSub/24000B/16publishers-4 35.2µs ± 4%
name alloc/op
SimpleString/sequential-4 0.00B
SimpleString/parallel-4 0.00B
Integer/sequential-4 0.00B
Integer/parallel-4 0.00B
Bulk/8B/sequential/bytes-4 8.00B ± 0%
Bulk/8B/sequential/string-4 8.00B ± 0%
Bulk/8B/parallel/bytes-4 8.00B ± 0%
Bulk/8B/parallel/string-4 8.00B ± 0%
Bulk/800B/sequential/bytes-4 896B ± 0%
Bulk/800B/sequential/string-4 896B ± 0%
Bulk/800B/parallel/bytes-4 896B ± 0%
Bulk/800B/parallel/string-4 896B ± 0%
Bulk/24000B/sequential/bytes-4 24.6kB ± 0%
Bulk/24000B/sequential/string-4 24.6kB ± 0%
Bulk/24000B/parallel/bytes-4 24.6kB ± 0%
Bulk/24000B/parallel/string-4 24.6kB ± 0%
Array/1×8B/sequential/bytes-4 40.0B ± 0%
Array/1×8B/sequential/string-4 24.0B ± 0%
Array/1×8B/parallel/bytes-4 40.0B ± 0%
Array/1×8B/parallel/string-4 24.0B ± 0%
Array/12×8B/sequential/bytes-4 384B ± 0%
Array/12×8B/sequential/string-4 288B ± 0%
Array/12×8B/parallel/bytes-4 384B ± 0%
Array/12×8B/parallel/string-4 288B ± 0%
Array/144×8B/sequential/bytes-4 4.61kB ± 0%
Array/144×8B/sequential/string-4 3.46kB ± 0%
Array/144×8B/parallel/bytes-4 4.61kB ± 0%
Array/144×8B/parallel/string-4 3.46kB ± 0%
PubSub/8B/1publishers-4 48.0B ± 0%
PubSub/8B/2publishers-4 48.0B ± 0%
PubSub/8B/16publishers-4 48.0B ± 0%
PubSub/800B/1publishers-4 936B ± 0%
PubSub/800B/2publishers-4 936B ± 0%
PubSub/800B/16publishers-4 936B ± 0%
PubSub/24000B/1publishers-4 24.7kB ± 0%
PubSub/24000B/2publishers-4 24.8kB ± 0%
PubSub/24000B/16publishers-4 24.9kB ± 0%
name allocs/op
SimpleString/sequential-4 0.00
SimpleString/parallel-4 0.00
Integer/sequential-4 0.00
Integer/parallel-4 0.00
Bulk/8B/sequential/bytes-4 1.00 ± 0%
Bulk/8B/sequential/string-4 1.00 ± 0%
Bulk/8B/parallel/bytes-4 1.00 ± 0%
Bulk/8B/parallel/string-4 1.00 ± 0%
Bulk/800B/sequential/bytes-4 1.00 ± 0%
Bulk/800B/sequential/string-4 1.00 ± 0%
Bulk/800B/parallel/bytes-4 1.00 ± 0%
Bulk/800B/parallel/string-4 1.00 ± 0%
Bulk/24000B/sequential/bytes-4 1.00 ± 0%
Bulk/24000B/sequential/string-4 1.00 ± 0%
Bulk/24000B/parallel/bytes-4 1.00 ± 0%
Bulk/24000B/parallel/string-4 1.00 ± 0%
Array/1×8B/sequential/bytes-4 2.00 ± 0%
Array/1×8B/sequential/string-4 2.00 ± 0%
Array/1×8B/parallel/bytes-4 2.00 ± 0%
Array/1×8B/parallel/string-4 2.00 ± 0%
Array/12×8B/sequential/bytes-4 13.0 ± 0%
Array/12×8B/sequential/string-4 13.0 ± 0%
Array/12×8B/parallel/bytes-4 13.0 ± 0%
Array/12×8B/parallel/string-4 13.0 ± 0%
Array/144×8B/sequential/bytes-4 145 ± 0%
Array/144×8B/sequential/string-4 145 ± 0%
Array/144×8B/parallel/bytes-4 145 ± 0%
Array/144×8B/parallel/string-4 145 ± 0%
PubSub/8B/1publishers-4 3.00 ± 0%
PubSub/8B/2publishers-4 3.00 ± 0%
PubSub/8B/16publishers-4 3.00 ± 0%
PubSub/800B/1publishers-4 3.00 ± 0%
PubSub/800B/2publishers-4 3.00 ± 0%
PubSub/800B/16publishers-4 3.00 ± 0%
PubSub/24000B/1publishers-4 3.00 ± 0%
PubSub/24000B/2publishers-4 3.00 ± 0%
PubSub/24000B/16publishers-4 3.00 ± 0%
name speed
Bulk/8B/sequential/bytes-4 260kB/s ± 0%
Bulk/8B/sequential/string-4 260kB/s ± 0%
Bulk/8B/parallel/bytes-4 833kB/s ± 6%
Bulk/8B/parallel/string-4 827kB/s ± 2%
Bulk/800B/sequential/bytes-4 25.1MB/s ± 1%
Bulk/800B/sequential/string-4 25.1MB/s ± 0%
Bulk/800B/parallel/bytes-4 74.6MB/s ± 4%
Bulk/800B/parallel/string-4 74.1MB/s ± 9%
Bulk/24000B/sequential/bytes-4 565MB/s ± 0%
Bulk/24000B/sequential/string-4 414MB/s ± 0%
Bulk/24000B/parallel/bytes-4 1.27GB/s ± 7%
Bulk/24000B/parallel/string-4 641MB/s ± 0%
Array/1×8B/sequential/bytes-4 240kB/s ± 0%
Array/1×8B/sequential/string-4 244kB/s ± 2%
Array/1×8B/parallel/bytes-4 762kB/s ± 6%
Array/1×8B/parallel/string-4 780kB/s ± 6%
Array/12×8B/sequential/bytes-4 2.89MB/s ± 1%
Array/12×8B/sequential/string-4 2.93MB/s ± 1%
Array/12×8B/parallel/bytes-4 8.63MB/s ± 8%
Array/12×8B/parallel/string-4 8.78MB/s ± 8%
Array/144×8B/sequential/bytes-4 22.6MB/s ± 0%
Array/144×8B/sequential/string-4 22.8MB/s ± 0%
Array/144×8B/parallel/bytes-4 55.8MB/s ± 5%
Array/144×8B/parallel/string-4 56.2MB/s ± 9%
PubSub/8B/1publishers-4 240kB/s ± 0%
PubSub/8B/2publishers-4 397kB/s ± 4%
PubSub/8B/16publishers-4 1.76MB/s ± 4%
PubSub/800B/1publishers-4 23.3MB/s ± 0%
PubSub/800B/2publishers-4 38.5MB/s ± 6%
PubSub/800B/16publishers-4 145MB/s ±11%
PubSub/24000B/1publishers-4 540MB/s ± 1%
PubSub/24000B/2publishers-4 699MB/s ± 4%
PubSub/24000B/16publishers-4 682MB/s ± 4%
name ns/delay
PubSub/8B/1publishers-4 42.9k ± 0%
PubSub/8B/2publishers-4 46.8k ± 4%
PubSub/8B/16publishers-4 71.4k ± 4%
PubSub/800B/1publishers-4 44.7k ± 0%
PubSub/800B/2publishers-4 49.2k ± 6%
PubSub/800B/16publishers-4 91.8k ±10%
PubSub/24000B/1publishers-4 65.5k ± 1%
PubSub/24000B/2publishers-4 87.3k ± 3%
PubSub/24000B/16publishers-4 583k ± 4%
name ns/publish
PubSub/8B/1publishers-4 33.4k ± 0%
PubSub/8B/2publishers-4 40.3k ± 4%
PubSub/8B/16publishers-4 71.9k ±10%
PubSub/800B/1publishers-4 34.3k ± 0%
PubSub/800B/2publishers-4 41.6k ± 6%
PubSub/800B/16publishers-4 88.2k ±10%
PubSub/24000B/1publishers-4 44.4k ± 1%
PubSub/24000B/2publishers-4 68.7k ± 4%
PubSub/24000B/16publishers-4 563k ± 4%