mirror of https://github.com/ledisdb/ledisdb.git
Merge branch 'develop' of https://github.com/siddontang/ledisdb into develop
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benchmark.md
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benchmark.md
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@ -1,16 +1,19 @@
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## 测试环境搭建
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## Environment
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+ 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
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+ 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
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+ 2 CPU Intel Core i5 1.7GHz
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+ 2 CPU Intel Core i5 1.7GHz
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+ 4GB
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+ 4GB
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+ SSD 120G
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+ SSD 120G
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使用redis-benchmark命令进行压力测试,测试语句
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Using redis-benchmark below:
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redis-benchmark -n 10000 -t set,incr,get,lpush,lpop,lrange,mset -q
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redis-benchmark -n 10000 -t set,incr,get,lpush,lpop,lrange,mset -q
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redis只用内存模式,关闭持久化
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## Config
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ssdb使用默认的配置,手动更改代码关闭了binlog的功能:
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+ redis: close save and aof
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+ ssdb: close binlog manually below:
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void BinlogQueue::add_log(char type, char cmd, const leveldb::Slice &key){
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void BinlogQueue::add_log(char type, char cmd, const leveldb::Slice &key){
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tran_seq ++;
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tran_seq ++;
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@ -18,9 +21,7 @@ ssdb使用默认的配置,手动更改代码关闭了binlog的功能:
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//batch.Put(encode_seq_key(tran_seq), log.repr());
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//batch.Put(encode_seq_key(tran_seq), log.repr());
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}
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}
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ledisdb使用跟ssdb相同的leveldb配置
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+ leveldb:
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leveldb配置:
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compression = false
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compression = false
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block_size = 32KB
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block_size = 32KB
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@ -70,7 +71,11 @@ leveldb配置:
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LRANGE_600 (first 600 elements): 1590.33 requests per second
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LRANGE_600 (first 600 elements): 1590.33 requests per second
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MSET (10 keys): 21881.84 requests per second
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MSET (10 keys): 21881.84 requests per second
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可以看到,ledisdb的性能比redis以及ssdb略差,(至于为啥ssdb lrange性能这样差我感到比较困惑),但还不至于不可用,我觉得可能如下原因:
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## Conclusion
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+ go语言自身没有c,c++快
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ledisdb is little slower than redis or ssdb, some reasons may cause it:
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+ ledisdb使用的cgo调用的leveldb相关函数,这块开销其实蛮大的,后续是优化重点。
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+ go is fast, but not faster than c/c++
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+ ledisdb uses cgo to call leveldb, a big cost.
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However, **ledisdb is still an alternative NoSQL in production for you**.
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