Redis-benchmark是官方自带的Redis性能测试工具，可以有效的测试Redis服务的性能。
使用说明如下：
Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>] -h <hostname> Server hostname (default 127.0.0.1) -p <port> Server port (default 6379) -s <socket> Server socket (overrides host and port) -c <clients> Number of parallel connections (default 50) -n <requests> Total number of requests (default 10000) -d <size> Data size of SET/GET value in bytes (default 2) -k <boolean> 1=keep alive 0=reconnect (default 1) -r <keyspacelen> 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 <keyspacelen> 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 <numreq> Pipeline <numreq> requests. Default 1 (no pipeline). -q Quiet. Just show query/sec values --csv Output in CSV format -l Loop. Run the tests forever -t <tests> 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.测试命令事例：
1、redis-benchmark -h 192.168.1.201 -p 6379 -c 100 -n 100000 100个并发连接，100000个请求，检测host为localhost 端口为6379的redis服务器性能
2、redis-benchmark -h 192.168.1.201 -p 6379 -q -d 100
测试存取大小为100字节的数据包的性能
3、redis-benchmark -t set,lpush -n 100000 -q
只测试某些操作的性能
4、redis-benchmark -n 100000 -q script load "redis.call('set','foo','bar')"
只测试某些数值存取的性能
测试结果分析：
10000 requests completed in 0.30 seconds 100 parallel clients 3 bytes payload keep alive: 10.11% <= 1 milliseconds86.00% <= 2 milliseconds90.12% <= 3 milliseconds96.68% <= 4 milliseconds99.27% <= 5 milliseconds99.54% <= 6 milliseconds99.69% <= 7 milliseconds99.78% <= 8 milliseconds99.89% <= 9 milliseconds100.00% <= 9 milliseconds33222.59 requests per second====== PING_BULK ====== 10000 requests completed in 0.27 seconds 100 parallel clients 3 bytes payload keep alive: 10.93% <= 1 milliseconds97.66% <= 2 milliseconds100.00% <= 2 milliseconds37174.72 requests per second====== SET ====== 10000 requests completed in 0.32 seconds 100 parallel clients 3 bytes payload keep alive: 10.22% <= 1 milliseconds91.68% <= 2 milliseconds97.78% <= 3 milliseconds98.80% <= 4 milliseconds99.38% <= 5 milliseconds99.61% <= 6 milliseconds99.72% <= 7 milliseconds99.83% <= 8 milliseconds99.94% <= 9 milliseconds100.00% <= 9 milliseconds30959.75 requests per second====== GET ====== 10000 requests completed in 0.28 seconds 100 parallel clients 3 bytes payload keep alive: 10.55% <= 1 milliseconds98.86% <= 2 milliseconds100.00% <= 2 milliseconds35971.22 requests per second====== INCR ====== 10000 requests completed in 0.14 seconds 100 parallel clients 3 bytes payload keep alive: 195.61% <= 1 milliseconds100.00% <= 1 milliseconds69444.45 requests per second====== LPUSH ====== 10000 requests completed in 0.21 seconds 100 parallel clients 3 bytes payload keep alive: 118.33% <= 1 milliseconds100.00% <= 1 milliseconds48309.18 requests per second====== LPOP ====== 10000 requests completed in 0.23 seconds 100 parallel clients 3 bytes payload keep alive: 10.29% <= 1 milliseconds99.76% <= 2 milliseconds100.00% <= 2 milliseconds44052.86 requests per second====== SADD ====== 10000 requests completed in 0.22 seconds 100 parallel clients 3 bytes payload keep alive: 12.37% <= 1 milliseconds99.81% <= 2 milliseconds100.00% <= 2 milliseconds44444.45 requests per second====== SPOP ====== 10000 requests completed in 0.22 seconds 100 parallel clients 3 bytes payload keep alive: 14.27% <= 1 milliseconds99.84% <= 2 milliseconds100.00% <= 2 milliseconds44642.86 requests per second====== LPUSH (needed to benchmark LRANGE) ====== 10000 requests completed in 0.22 seconds 100 parallel clients 3 bytes payload keep alive: 112.35% <= 1 milliseconds99.62% <= 2 milliseconds100.00% <= 2 milliseconds46082.95 requests per second====== LRANGE_100 (first 100 elements) ====== 10000 requests completed in 0.48 seconds 100 parallel clients 3 bytes payload keep alive: 10.01% <= 1 milliseconds3.27% <= 2 milliseconds98.71% <= 3 milliseconds99.93% <= 4 milliseconds100.00% <= 4 milliseconds20964.36 requests per second====== LRANGE_300 (first 300 elements) ====== 10000 requests completed in 1.26 seconds 100 parallel clients 3 bytes payload keep alive: 10.01% <= 2 milliseconds0.14% <= 3 milliseconds0.90% <= 4 milliseconds7.03% <= 5 milliseconds31.68% <= 6 milliseconds78.93% <= 7 milliseconds98.88% <= 8 milliseconds99.56% <= 9 milliseconds99.72% <= 10 milliseconds99.95% <= 11 milliseconds100.00% <= 11 milliseconds7961.78 requests per second====== LRANGE_500 (first 450 elements) ====== 10000 requests completed in 1.82 seconds 100 parallel clients 3 bytes payload keep alive: 10.01% <= 2 milliseconds0.06% <= 3 milliseconds0.14% <= 4 milliseconds0.30% <= 5 milliseconds0.99% <= 6 milliseconds2.91% <= 7 milliseconds8.11% <= 8 milliseconds43.15% <= 9 milliseconds88.38% <= 10 milliseconds97.25% <= 11 milliseconds98.61% <= 12 milliseconds99.26% <= 13 milliseconds99.30% <= 14 milliseconds99.44% <= 15 milliseconds99.48% <= 16 milliseconds99.64% <= 17 milliseconds99.85% <= 18 milliseconds99.92% <= 19 milliseconds99.95% <= 20 milliseconds99.96% <= 21 milliseconds99.97% <= 22 milliseconds100.00% <= 23 milliseconds5491.49 requests per second====== LRANGE_600 (first 600 elements) ====== 10000 requests completed in 2.29 seconds 100 parallel clients 3 bytes payload keep alive: 10.01% <= 2 milliseconds0.05% <= 3 milliseconds0.10% <= 4 milliseconds0.19% <= 5 milliseconds0.34% <= 6 milliseconds0.46% <= 7 milliseconds0.58% <= 8 milliseconds4.46% <= 9 milliseconds21.80% <= 10 milliseconds40.48% <= 11 milliseconds60.14% <= 12 milliseconds79.81% <= 13 milliseconds93.77% <= 14 milliseconds97.14% <= 15 milliseconds98.67% <= 16 milliseconds99.08% <= 17 milliseconds99.30% <= 18 milliseconds99.41% <= 19 milliseconds99.52% <= 20 milliseconds99.61% <= 21 milliseconds99.79% <= 22 milliseconds99.88% <= 23 milliseconds99.89% <= 24 milliseconds99.95% <= 26 milliseconds99.96% <= 27 milliseconds99.97% <= 28 milliseconds99.98% <= 29 milliseconds100.00% <= 29 milliseconds4359.20 requests per second====== MSET (10 keys) ====== 10000 requests completed in 0.37 seconds 100 parallel clients 3 bytes payload keep alive: 10.01% <= 1 milliseconds2.00% <= 2 milliseconds18.41% <= 3 milliseconds88.55% <= 4 milliseconds96.09% <= 5 milliseconds99.50% <= 6 milliseconds99.65% <= 7 milliseconds99.75% <= 8 milliseconds99.77% <= 9 milliseconds99.78% <= 11 milliseconds99.79% <= 12 milliseconds99.80% <= 13 milliseconds99.81% <= 15 milliseconds99.82% <= 16 milliseconds99.83% <= 17 milliseconds99.84% <= 19 milliseconds99.85% <= 21 milliseconds99.86% <= 23 milliseconds99.87% <= 24 milliseconds99.88% <= 25 milliseconds99.89% <= 27 milliseconds99.90% <= 28 milliseconds99.91% <= 30 milliseconds99.92% <= 32 milliseconds99.93% <= 34 milliseconds99.95% <= 35 milliseconds99.96% <= 36 milliseconds99.97% <= 37 milliseconds99.98% <= 39 milliseconds99.99% <= 41 milliseconds100.00% <= 41 milliseconds27173.91 requests per second
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