A fast simple Redis clone for the purpose of demonstrating the redcon.c framework.
- Lightweight
- Single-threaded
- High throughput
The following Redis commands are supported:
SET key value [EX seconds|PX milliseconds] [NX|XX] [KEEPTTL]
GET key
DEL key [key ...]
KEYS pattern
PING [message]
FLUSHDB
DBSIZE
QUIT
Clone the respository and then use pkg.sh to import dependencies.
$ git clone https://github.com/tidwall/redcon.c
$ cd redcon.c/example
$ pkg.sh import
Then build and run the server.
$ cc *.c && ./a.out
And connect using the Redis cli.
$ redis-cli -p 6380
For following results were generated using the redis-benchmark tool that is provided by the official Redis distribution.
| Cmd | Pipeline 1 | Pipeline 8 | Pipeline 16 | Pipeline 32 | Pipeline 64 | Pipeline 128 | |
|---|---|---|---|---|---|---|---|
| Redis 6.06 | SET | 114,467 | 618,432 | 765,284 | 872,984 | 947,724 | 990,307 |
| Redis 6.06 | GET | 114,888 | 692,764 | 898,724 | 1,048,987 | 1,151,277 | 1,208,751 |
| Redis clone | SET | 114,554 | 895,502 | 1,310,787 | 1,670,902 | 1,954,295 | 2,122,295 |
| Redis clone | GET | 114,602 | 894,862 | 1,346,276 | 1,735,809 | 2,046,245 | 2,230,151 |
The Redis clone used about 7% less memory than Redis 6.06 -- 79.7 MB to 84.8 MB.
The machine is an AWS c5.2xlarge instance (Intel Xeon 3.6 GHz).
The benchmark command looked like:
redis-benchmark -q -t set,get -r 1000000 -n 10000000 -p 6379 -P 16 # redis 6.06
redis-benchmark -q -t set,get -r 1000000 -n 10000000 -p 6380 -P 16 # redis clone