ledisdb/benchmark.md

## Environment

+ Darwin karamatoMacBook-Air.local 13.1.0 Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64 x86_64
+ 2 CPU Intel Core i5 1.7GHz
+ 4GB
+ SSD 120G

Using redis-benchmark below:

    redis-benchmark -n 10000 -t set,incr,get,lpush,lpop,lrange,mset -q

## Config

+ redis: close save and aof

+ ssdb: close binlog manually below:

        void BinlogQueue::add_log(char type, char cmd, const leveldb::Slice &key){
            tran_seq ++;
            //Binlog log(tran_seq, type, cmd, key);
            //batch.Put(encode_seq_key(tran_seq), log.repr());
        }

+ leveldb：
    
        compression       = false
        block_size        = 32KB
        write_buffer_size = 64MB
        cache_size        = 500MB


## redis

    SET: 42735.04 requests per second
    GET: 45871.56 requests per second
    INCR: 45248.87 requests per second
    LPUSH: 45045.04 requests per second
    LPOP: 43103.45 requests per second
    LPUSH (needed to benchmark LRANGE): 44843.05 requests per second
    LRANGE_100 (first 100 elements): 14727.54 requests per second
    LRANGE_300 (first 300 elements): 6915.63 requests per second
    LRANGE_500 (first 450 elements): 5042.86 requests per second
    LRANGE_600 (first 600 elements): 3960.40 requests per second
    MSET (10 keys): 33003.30 requests per second

## ssdb

    SET: 35971.22 requests per second
    GET: 47393.37 requests per second
    INCR: 36630.04 requests per second
    LPUSH: 37174.72 requests per second
    LPOP: 38167.94 requests per second
    LPUSH (needed to benchmark LRANGE): 37593.98 requests per second
    LRANGE_100 (first 100 elements): 905.55 requests per second
    LRANGE_300 (first 300 elements): 327.78 requests per second
    LRANGE_500 (first 450 elements): 222.36 requests per second
    LRANGE_600 (first 600 elements): 165.30 requests per second
    MSET (10 keys): 33112.59 requests per second

## ledisdb

    SET: 38759.69 requests per second
    GET: 40160.64 requests per second
    INCR: 36101.08 requests per second
    LPUSH: 33003.30 requests per second
    LPOP: 27624.31 requests per second
    LPUSH (needed to benchmark LRANGE): 32894.74 requests per second
    LRANGE_100 (first 100 elements): 7352.94 requests per second
    LRANGE_300 (first 300 elements): 2867.79 requests per second
    LRANGE_500 (first 450 elements): 1778.41 requests per second
    LRANGE_600 (first 600 elements): 1590.33 requests per second
    MSET (10 keys): 21881.84 requests per second

## Conclusion

ledisdb is little slower than redis or ssdb, some reasons may cause it:

+ go is fast, but not faster than c/c++
+ ledisdb uses cgo to call leveldb, a big cost. 

However, **ledisdb is still an alternative NoSQL in production for you**.