redis压力测试详解
redis做壓測可以用自帶的redis-benchmark工具，使用簡單，效果也比較不錯。
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linux下一般無需下載，windows下redis-benchmark壓力測試工具下載地址：http://www.daixiaorui.com/source/18.html（解壓后的redis-benchmark.exe）
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壓測命令：redis-benchmark -h 127.0.0.1 -p 6379 -c 50 -n 10000
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-c表示連接數
-n表示請求數
更多參數請輸入 --help 查看~
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壓測需要一段時間，因為它需要依次壓測多個命令的結果，如：get、set、incr、lpush等等，所以我們需要耐心等待，如果只需要壓測某個命令，如：get，那么可以在以上的命令后加一個參數-t（紅色部分）：
redis-benchmark -h 127.0.0.1 -p 6086 -c 50 -n 10000?-t get
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壓測結果：
[root@1234 ~]# redis-benchmark -h 127.0.0.1 -p 6086 -c 50 -n 10000 -t get
====== GET ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.16% <= 1 milliseconds
100.00% <= 1 milliseconds
68027.21 requests per second
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不帶-t的壓測結果如下：
[root@1234 ~]# redis-benchmark -h 127.0.0.1 -p 6086 -c 50 -n 10000
====== PING_INLINE ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.35% <= 1 milliseconds
100.00% <= 1 milliseconds
67114.09 requests per second
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====== PING_BULK ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.38% <= 1 milliseconds
100.00% <= 1 milliseconds
66666.66 requests per second
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====== SET ====== ?(處理set的性能)
? 10000 requests completed in 0.17 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.11% <= 1 milliseconds
99.51% <= 25 milliseconds
100.00% <= 25 milliseconds
57142.86 requests per second
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====== GET ====== ?(處理get請求的性能)
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.09% <= 1 milliseconds
99.51% <= 11 milliseconds
100.00% <= 12 milliseconds
66666.66 requests per second
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====== INCR ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.33% <= 1 milliseconds
100.00% <= 1 milliseconds
66666.66 requests per second
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====== LPUSH ======
? 10000 requests completed in 0.16 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.20% <= 1 milliseconds
100.00% <= 1 milliseconds
64516.13 requests per second
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====== LPOP ======
? 10000 requests completed in 0.16 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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98.56% <= 1 milliseconds
99.51% <= 14 milliseconds
100.00% <= 14 milliseconds
61349.69 requests per second
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====== SADD ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.36% <= 1 milliseconds
100.00% <= 1 milliseconds
67114.09 requests per second
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====== SPOP ======
? 10000 requests completed in 0.14 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.32% <= 1 milliseconds
100.00% <= 1 milliseconds
69930.07 requests per second
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====== LPUSH (needed to benchmark LRANGE) ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.47% <= 1 milliseconds
100.00% <= 1 milliseconds
67567.57 requests per second
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====== LRANGE_100 (first 100 elements) ======
? 10000 requests completed in 0.14 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.41% <= 1 milliseconds
100.00% <= 1 milliseconds
72992.70 requests per second
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====== LRANGE_300 (first 300 elements) ======
? 10000 requests completed in 0.14 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.41% <= 1 milliseconds
100.00% <= 1 milliseconds
72463.77 requests per second
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====== LRANGE_500 (first 450 elements) ======
? 10000 requests completed in 0.14 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.35% <= 1 milliseconds
100.00% <= 1 milliseconds
68965.52 requests per second
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====== LRANGE_600 (first 600 elements) ======
? 10000 requests completed in 0.15 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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99.37% <= 1 milliseconds
100.00% <= 1 milliseconds
66225.17 requests per second
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====== MSET (10 keys) ======
? 10000 requests completed in 0.17 seconds
? 50 parallel clients
? 3 bytes payload
? keep alive: 1
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94.94% <= 1 milliseconds
100.00% <= 1 milliseconds
58479.53 requests per second
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這樣看起來很冗余，如果我們只想看最終的結果，可以帶上參數-q，完整的命令如下：
redis-benchmark -h 127.0.0.1 -p 6086 -c 50 -n 10000 -q
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顯示結果為：
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[root@1234 ~]# redis-benchmark -h 127.0.0.1 -p 6086 -c 50 -n 10000 -q
PING_INLINE: 66225.17 requests per second
PING_BULK: 65789.48 requests per second
SET: 66666.66 requests per second
GET: 69444.45 requests per second
INCR: 62893.08 requests per second
LPUSH: 65789.48 requests per second
LPOP: 68027.21 requests per second
SADD: 64935.07 requests per second
SPOP: 67114.09 requests per second
LPUSH (needed to benchmark LRANGE): 62893.08 requests per second
LRANGE_100 (first 100 elements): 69444.45 requests per second
LRANGE_300 (first 300 elements): 68965.52 requests per second
LRANGE_500 (first 450 elements): 68965.52 requests per second
LRANGE_600 (first 600 elements): 68965.52 requests per second
MSET (10 keys): 59171.60 requests per second
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溫馨提示：
壓測結果跟機器的性能有關，其中windows下壓測的結果要比在linux下差一大截。
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