redis-benchmark是官方自帶的redis效能測試工具，可以有效的測試redis服務的效能。
使用說明如下：
usage: redis-benchmark [-h ] [-p ] [-c ] [-n [-k ]-h server hostname (default 127.0.0.1)
-p server port (default 6379)
-s server socket (overrides host and port)
-c number of parallel connections (default 50)
-n total number of requests (default 10000)
-d data size of set/get value in bytes (default 2)
-k 1=keep alive 0=reconnect (default 1)
-r use random keys for set/get/incr, random values for
sadd
using this option the benchmark will get/set keys
in the form mykey_rand:000000012456 instead of constant
keys, the argument determines the max
number of values for the random number. for
instance
if set to 10 only rand:000000000000 - rand:000000000009
range will be allowed.
-p pipeline requests. default 1 (no pipeline).
-q quiet. just show query/sec values
--csv output in csv format
-l loop.run the tests forever
-t only run the comma-separated list of tests.the test
names are the same
as the ones produced as output.
-i idle mode. just open n idle connections and wait.
測試命令事例：
1、redis-benchmark -h 192.168.1.201 -p 6379 -c 100 -n 100000
100個併發連線，100000個請求，檢測host為localhost 埠為6379的redis伺服器效能
2、redis-benchmark -h 192.168.1.201 -p 6379 -q -d 100
測試訪問大小為100位元組的資料報的效能
3、redis-benchmark -t set,lpush -n 100000 -q
只測試某些操作的效能
4、redis-benchmark -n 100000 -q script load "redis.call('set','foo','bar')"
只測試某些數值訪問的效能
測試結果分析：
www@iz23s8agtagz:~$ redis-benchmark -h 121.41.88.209 -p 63789 -t lrange -c 10*****= lpush (needed to benchmark lrange) *****=
10000 requests completed in 0.16seconds
10parallel clients
3bytes payload
keep alive: 1
100.00% <= 0milliseconds
62111.80requests per second
*****= lrange_100 (first 100 elements) *****=
10000 requests completed in 0.26seconds
10parallel clients
3bytes payload
keep alive: 1
100.00% <= 0milliseconds
39062.50requests per second
*****= lrange_300 (first 300 elements) *****=
10000 requests completed in 0.62seconds
10parallel clients
3bytes payload
keep alive: 1
100.00% <= 0milliseconds
16051.36requests per second
*****= lrange_500 (first 450 elements) *****=
10000 requests completed in 0.91seconds
10parallel clients
3bytes payload
keep alive: 1
100.00% <= 0milliseconds
10940.92requests per second
*****= lrange_600 (first 600 elements) *****=
10000 requests completed in 1.18seconds
10parallel clients
3bytes payload
keep alive: 1
99.35% <= 1milliseconds
99.88% <= 2milliseconds
99.91% <= 4milliseconds
100.00% <= 4milliseconds
8474.58 requests per second
測試結果2：
www@iz23s8agtagz:~$ redis-benchmark -h 121.41.88.209 -p 63789 -t lrange -c 10 -qlpush (needed to benchmark lrange): 64102.56requests per second
lrange_100 (first 100 elements): 39370.08requests per second
lrange_300 (first 300 elements): 16694.49requests per second
lrange_500 (first 450 elements): 11001.10requests per second
lrange_600 (first 600 elements): 8319.47 requests per second
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