redis压测工具：redis-benchmark与memtier_benchmark

前言

redis-benchmark与memtier_benchmark两个工具都可以用来做压测

一、redis-benchmark

redis-benchmark在redis6.0.6提供的工具.具有了多线程的功能,执行redis-benchmark --help可以具体的使用信息

1.  
   root@4e1c5c3a1f9d:/data# redis-benchmark --help
2.  
   Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests>] [-k <boolean>]
3.  
    
4.  
   -h <hostname> Server hostname (default 127.0.0.1)
5.  
   -p <port> Server port (default 6379)
6.  
   -s <socket> Server socket (overrides host and port)
7.  
   -a <password> Password for Redis Auth
8.  
   --user <username> Used to send ACL style 'AUTH username pass'. Needs -a.
9.  
   -c <clients> Number of parallel connections (default 50)
10.  
    -n <requests> Total number of requests (default 100000)
11.  
    -d <size> Data size of SET/GET value in bytes (default 3)
12.  
    --dbnum <db> SELECT the specified db number (default 0)
13.  
    --threads <num> Enable multi-thread mode.
14.  
    --cluster Enable cluster mode.
15.  
    --enable-tracking Send CLIENT TRACKING on before starting benchmark.
16.  
    -k <boolean> 1=keep alive 0=reconnect (default 1)
17.  
    -r <keyspacelen> Use random keys for SET/GET/INCR, random values for SADD
18.  
    Using this option the benchmark will expand the string __rand_int__
19.  
    inside an argument with a 12 digits number in the specified range
20.  
    from 0 to keyspacelen-1. The substitution changes every time a command
21.  
    is executed. Default tests use this to hit random keys in the
22.  
    specified range.
23.  
    -P <numreq> Pipeline <numreq> requests. Default 1 (no pipeline).
24.  
    -e If server replies with errors, show them on stdout.
25.  
    (no more than 1 error per second is displayed)
26.  
    -q Quiet. Just show query/sec values
27.  
    --precision Number of decimal places to display in latency output (default 0)
28.  
    --csv Output in CSV format
29.  
    -l Loop. Run the tests forever
30.  
    -t <tests> Only run the comma separated list of tests. The test
31.  
    names are the same as the ones produced as output.
32.  
    -I Idle mode. Just open N idle connections and wait.
33.  
     
34.  
    Examples:
35.  
    Run the benchmark with the default configuration against 127.0.0.1:6379:
36.  
    $ redis-benchmark
37.  
    Use 20 parallel clients, for a total of 100k requests, against 192.168.1.1:
38.  
    $ redis-benchmark -h 192.168.1.1 -p 6379 -n 100000 -c 20
39.  
    Fill 127.0.0.1:6379 with about 1 million keys only using the SET test:
40.  
    $ redis-benchmark -t set -n 1000000 -r 100000000
41.  
    Benchmark 127.0.0.1:6379 for a few commands producing CSV output:
42.  
    $ redis-benchmark -t ping,set,get -n 100000 --csv
43.  
    Benchmark a specific command line:
44.  
    $ redis-benchmark -r 10000 -n 10000 eval 'return redis.call("ping")' 0
45.  
    Fill a list with 10000 random elements:
46.  
    $ redis-benchmark -r 10000 -n 10000 lpush mylist __rand_int__
47.  
    On user specified command lines __rand_int__ is replaced with a random integer
48.  
    with a range of values selected by the -r option.

简单说明:

1.  
   -q 仅仅显示redis-benchmark的requests per second信息
2.  
   -P 代表每个请求pipeline的数据量（默认为1）
3.  
   -k 代表客户端是否使用keepalive， 1为使用， 0为不使用， 默认值为1
4.  
   -t 可以对指定命令进行基准测试 例如：redis-benchmark -t get,set
5.  
   --csv 选项会将结果按照csv格式输出， 便于后续处理， 如导出到Excel

使用:

redis-benchmark -h 127.0.0.1 -p 6379 -a 123456 -c 100 --cluster -n 100000 -r 1000 -d 100 -q --threads 16 -t get,set,incr,hset

解释:对redis集群(ip:127.0.0.1 port: 6379 pwd:123456 )进行压测.启动16个线程,100个客户端,1000000个key（千位之内随机数）每个key100字节，测试set/get/incr/hset命令执行的qps结果

二、memtier_benchmark

memtier_benchmark是Redis Labs推出的一款命令行工具

安装参考文章:http://ghoulich.xninja.org/2016/12/11/how-to-use-memtier-benchmark-to-measure-redis-performance/

1.  
   1. 安装编译环境和依赖包
2.  
   ## 安装编译环境
3.  
   yum install -y autoconf automake make gcc-c++
4.  
    
5.  
   ## 安装依赖包
6.  
   yum install -y pcre-devel zlib-devel libmemcached-devel wget git
7.  
    
8.  
   2. 编译安装libevent
9.  
   cd /Downloads
10.  
    wget https://github.com/libevent/libevent/releases/download/release-2.0.22-stable/libevent-2.0.22-stable.tar.gz
11.  
    tar xvzf libevent-2.0.22-stable.tar.gz
12.  
    cd libevent-2.0.22-stable
13.  
    ./configure
14.  
    make && make install
15.  
     
16.  
    3. 更新库文件配置
17.  
    echo "export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:${PKG_CONFIG_PATH}" >> /etc/profile
18.  
    source /etc/profile
19.  
    ldconfig /usr/local/lib
20.  
     
21.  
    4. 编译安装memtier_benchmark工具
22.  
    cd /Downloads
23.  
    git clone https://github.com/RedisLabs/memtier_benchmark.git
24.  
    cd memtier_benchmark
25.  
    autoreconf -ivf
26.  
    ./configure --prefix=/usr/local/memtier
27.  
    make && make install
28.  
    echo "export PATH=/usr/local/memtier/bin:${PATH}" >> /etc/profile
29.  
    source /etc/profile
30.  
     
31.  
    5. 验证安装
32.  
    memtier_benchmark --help

查看命令使用说明

1.  
   [root@sza232073 ~]# memtier_benchmark --help
2.  
   Usage: memtier_benchmark [options]
3.  
   A memcache/redis NoSQL traffic generator and performance benchmarking tool.
4.  
    
5.  
   Connection and General Options:
6.  
   -s, --server=ADDR Server address (default: localhost)
7.  
   -p, --port=PORT Server port (default: 6379)
8.  
   -S, --unix-socket=SOCKET UNIX Domain socket name (default: none)
9.  
   -P, --protocol=PROTOCOL Protocol to use (default: redis). Other
10.  
    supported protocols are memcache_text,
11.  
    memcache_binary.
12.  
    -a, --authenticate=CREDENTIALS Authenticate using specified credentials.
13.  
    A simple password is used for memcache_text
14.  
    and Redis <= 5.x. <USER>:<PASSWORD> can be
15.  
    specified for memcache_binary or Redis 6.x
16.  
    or newer with ACL user support.
17.  
    --tls Enable SSL/TLS transport security
18.  
    --cert=FILE Use specified client certificate for TLS
19.  
    --key=FILE Use specified private key for TLS
20.  
    --cacert=FILE Use specified CA certs bundle for TLS
21.  
    --tls-skip-verify Skip verification of server certificate
22.  
    --sni=STRING Add an SNI header
23.  
    -x, --run-count=NUMBER Number of full-test iterations to perform
24.  
    -D, --debug Print debug output
25.  
    --client-stats=FILE Produce per-client stats file
26.  
    --out-file=FILE Name of output file (default: stdout)
27.  
    --json-out-file=FILE Name of JSON output file, if not set, will not print to json
28.  
    --show-config Print detailed configuration before running
29.  
    --hide-histogram Don't print detailed latency histogram
30.  
    --cluster-mode Run client in cluster mode
31.  
    --help Display this help
32.  
    --version Display version information
33.  
     
34.  
    Test Options:
35.  
    -n, --requests=NUMBER Number of total requests per client (default: 10000)
36.  
    use 'allkeys' to run on the entire key-range
37.  
    -c, --clients=NUMBER Number of clients per thread (default: 50)
38.  
    -t, --threads=NUMBER Number of threads (default: 4)
39.  
    --test-time=SECS Number of seconds to run the test
40.  
    --ratio=RATIO Set:Get ratio (default: 1:10)
41.  
    --pipeline=NUMBER Number of concurrent pipelined requests (default: 1)
42.  
    --reconnect-interval=NUM Number of requests after which re-connection is performed
43.  
    --multi-key-get=NUM Enable multi-key get commands, up to NUM keys (default: 0)
44.  
    --select-db=DB DB number to select, when testing a redis server
45.  
    --distinct-client-seed Use a different random seed for each client
46.  
    --randomize random seed based on timestamp (default is constant value)
47.  
     
48.  
    Arbitrary command:
49.  
    --command=COMMAND Specify a command to send in quotes.
50.  
    Each command that you specify is run with its ratio and key-pattern options.
51.  
    For example: --command="set __key__ 5" --command-ratio=2 --command-key-pattern=G
52.  
    To use a generated key or object, enter:
53.  
    __key__: Use key generated from Key Options.
54.  
    __data__: Use data generated from Object Options.
55.  
    --command-ratio The number of times the command is sent in sequence.(default: 1)
56.  
    --command-key-pattern Key pattern for the command (default: R):
57.  
    G for Gaussian distribution.
58.  
    R for uniform Random.
59.  
    S for Sequential.
60.  
    P for Parallel (Sequential were each client has a subset of the key-range).
61.  
     
62.  
    Object Options:
63.  
    -d --data-size=SIZE Object data size (default: 32)
64.  
    --data-offset=OFFSET Actual size of value will be data-size + data-offset
65.  
    Will use SETRANGE / GETRANGE (default: 0)
66.  
    -R --random-data Indicate that data should be randomized
67.  
    --data-size-range=RANGE Use random-sized items in the specified range (min-max)
68.  
    --data-size-list=LIST Use sizes from weight list (size1:weight1,..sizeN:weightN)
69.  
    --data-size-pattern=R|S Use together with data-size-range
70.  
    when set to R, a random size from the defined data sizes will be used,
71.  
    when set to S, the defined data sizes will be evenly distributed across
72.  
    the key range, see --key-maximum (default R)
73.  
    --expiry-range=RANGE Use random expiry values from the specified range
74.  
     
75.  
    Imported Data Options:
76.  
    --data-import=FILE Read object data from file
77.  
    --data-verify Enable data verification when test is complete
78.  
    --verify-only Only perform --data-verify, without any other test
79.  
    --generate-keys Generate keys for imported objects
80.  
    --no-expiry Ignore expiry information in imported data
81.  
     
82.  
    Key Options:
83.  
    --key-prefix=PREFIX Prefix for keys (default: "memtier-")
84.  
    --key-minimum=NUMBER Key ID minimum value (default: 0)
85.  
    --key-maximum=NUMBER Key ID maximum value (default: 10000000)
86.  
    --key-pattern=PATTERN Set:Get pattern (default: R:R)
87.  
    G for Gaussian distribution.
88.  
    R for uniform Random.
89.  
    S for Sequential.
90.  
    P for Parallel (Sequential were each client has a subset of the key-range).
91.  
    --key-stddev The standard deviation used in the Gaussian distribution
92.  
    (default is key range / 6)
93.  
    --key-median The median point used in the Gaussian distribution
94.  
    (default is the center of the key range)
95.  
     
96.  
    WAIT Options:
97.  
    --wait-ratio=RATIO Set:Wait ratio (default is no WAIT commands - 1:0)
98.  
    --num-slaves=RANGE WAIT for a random number of slaves in the specified range
99.  
    --wait-timeout=RANGE WAIT for a random number of milliseconds in the specified range (normal
100.  
     distribution with the center in the middle of the range)

使用1:对集群压测

memtier_benchmark -s 127.0.0.1 -p 6379 -a 123456 --cluster-mode -c 100  -R -d 100 -t 16 --ratio=1:1 -n 1000 --out-file=result.txt

解释:对redis集群(ip:127.0.0.1 port: 6379 pwd:123456 )进行压测.启动16个线程,100个客户端,（随机数）每个key对应的value100字节，执行16*100*1000个key,测试set/get命令执行结果输出到result.txt文件中

memtier_benchmark -s 127.0.0.1 -p 6379 -a 123456 --cluster-mode -c 100  -R -d 100 -t 16 --ratio=1:1  --test-time=60 --out-file=result.txt

解释:对redis集群(ip:127.0.0.1 port: 6379 pwd:123456 )进行压测.启动16个线程,100个客户端,（随机数）每个key对应的value100字节,执行1分钟，测试set/get命令执行结果输出到result.txt文件中

使用2:对单机压测

唯一与上边不同的是可以通过--command指定命令,-key-prefix定义key的前缀,--key-minimum --key-maximum定义随机数的范围,也可以不指定,按照上边压测去掉--cluster-mode

memtier_benchmark -s 127.0.0.1 -p 6379 -a 123456 -t 16 -c 100 -n 1000 --distinct-client-seed --command="set __key__ __data__" --key-prefix="kv_" --key-minimum=1 --key-maximum=10000 -R -d 100

注:

1. -n 与 --test-time 两个参数不能同时使用,要么指定数量要么指定时间

2.--cluster-mode与--command不能同时使用(我测试是不能,若可以可以留下评论)