前言

redis-benchmark與memtier_benchmark兩個工具都可以用來做壓測

一、redis-benchmark

redis-benchmark在redis6.0.6提供的工具.具有了多執行緒的功能,執行redis-benchmark --help可以具體的使用資訊

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.

簡單說明:

1.   -q 僅僅顯示redis-benchmark的requests per second資訊
2.   -P 代表每個請求pipeline的資料量（預設為1）
3.   -k 代表客戶端是否使用keepalive， 1為使用， 0為不使用， 預設值為1
4.   -t 可以對指定命令進行基準測試 例如：redis-benchmark -t get,set
5.   --csv 選項會將結果按照csv格式輸出， 便於後續處理， 如匯出到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

解釋:對redis叢集(ip:127.0.0.1 port: 6379 pwd:123456 )進行壓測.啟動16個執行緒,100個客戶端,1000000個key（千位之內隨機數）每個key100位元組，測試set/get/incr/hset命令執行的qps結果

二、memtier_benchmark

memtier_benchmark是Redis Labs推出的一款命令列工具

安裝參考文章:

1.   1. 安裝編譯環境和依賴包
2.   ## 安裝編譯環境
3.   yum install -y autoconf automake make gcc-c++
4.    
5.   ## 安裝依賴包
6.   yum install -y pcre-devel zlib-devel libmemcached-devel wget git
7.    
8.   2. 編譯安裝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. 更新庫檔案配置
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. 編譯安裝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. 驗證安裝
32.   memtier_benchmark --help

檢視命令使用說明

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:對叢集壓測

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

解釋:對redis叢集(ip:127.0.0.1 port: 6379 pwd:123456 )進行壓測.啟動16個執行緒,100個客戶端,（隨機數）每個key對應的value100位元組，執行16*100*1000個key,測試set/get命令執行結果輸出到result.txt檔案中

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

解釋:對redis叢集(ip:127.0.0.1 port: 6379 pwd:123456 )進行壓測.啟動16個執行緒,100個客戶端,（隨機數）每個key對應的value100位元組,執行1分鐘，測試set/get命令執行結果輸出到result.txt檔案中

使用2:對單機壓測

唯一與上邊不同的是可以通過--command指定命令,-key-prefix定義key的字首,--key-minimum --key-maximum定義隨機數的範圍,也可以不指定,按照上邊壓測去掉--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 與 --test-time 兩個引數不能同時使用,要麼指定數量要麼指定時間

2.--cluster-mode與--command不能同時使用(我測試是不能,若可以可以留下評論)