mysql數(shù)據(jù)庫(kù)壓力測(cè)試工具mysqlslap怎么用

發(fā)布時(shí)間：2021-11-06 09:37:40 來(lái)源：億速云閱讀：126 作者：小新欄目：MySQL數(shù)據(jù)庫(kù)

這篇文章將為大家詳細(xì)講解有關(guān)mysql數(shù)據(jù)庫(kù)壓力測(cè)試工具mysqlslap怎么用，小編覺(jué)得挺實(shí)用的，因此分享給大家做個(gè)參考，希望大家閱讀完這篇文章后可以有所收獲。

mysqlslap是從MySQL的5.1.4版開(kāi)始就開(kāi)始官方提供的壓力測(cè)試工具。通過(guò)模擬多個(gè)并發(fā)客戶(hù)端并發(fā)訪(fǎng)問(wèn)MySQL來(lái)執(zhí)行壓力測(cè)試，同時(shí)提供了較詳細(xì)的SQL執(zhí)行數(shù)據(jù)性能報(bào)告，并且能很好的對(duì)比多個(gè)存儲(chǔ)引擎（MyISAM，InnoDB等）在相同環(huán)境下的相同并發(fā)壓力下的性能差別。

mysqlslap官方文檔： https://dev.mysql.com/doc/refman/5.6/en/mysqlslap.html

Table 4.14 mysqlslap Options

Format	Description	Introduced
--auto-generate-sql	Generate SQL statements automatically when they are not supplied in files or using command options
--auto-generate-sql-add-autoincrement	Add AUTO_INCREMENT column to automatically generated tables
--auto-generate-sql-execute-number	Specify how many queries to generate automatically
--auto-generate-sql-guid-primary	Add a GUID-based primary key to automatically generated tables
--auto-generate-sql-load-type	Specify the test load type
--auto-generate-sql-secondary-indexes	Specify how many secondary indexes to add to automatically generated tables
--auto-generate-sql-unique-query-number	How many different queries to generate for automatic tests.
--auto-generate-sql-unique-write-number	How many different queries to generate for --auto-generate-sql-write-number
--auto-generate-sql-write-number	How many row inserts to perform on each thread
--commit	How many statements to execute before committing.
--compress	Compress all information sent between client and server
--concurrency	Number of clients to simulate when issuing the SELECT statement
--create	File or string containing the statement to use for creating the table
--create-schema	Schema in which to run the tests
--csv	Generate output in comma-separated values format
--debug	Write debugging log
--debug-check	Print debugging information when program exits
--debug-info	Print debugging information, memory, and CPU statistics when program exits
--default-auth	Authentication plugin to use	5.6.2
--defaults-extra-file	Read named option file in addition to usual option files
--defaults-file	Read only named option file
--defaults-group-suffix	Option group suffix value
--delimiter	Delimiter to use in SQL statements
--detach	Detach (close and reopen) each connection after each N statements
--enable-cleartext-plugin	Enable cleartext authentication plugin	5.6.7
--engine	Storage engine to use for creating the table
--help	Display help message and exit
--host	Connect to MySQL server on given host
--iterations	Number of times to run the tests
--login-path	Read login path options from .mylogin.cnf	5.6.6
--no-defaults	Read no option files
--no-drop	Do not drop any schema created during the test run	5.6.3
--number-char-cols	Number of VARCHAR columns to use if --auto-generate-sql is specified
--number-int-cols	Number of INT columns to use if --auto-generate-sql is specified
--number-of-queries	Limit each client to approximately this number of queries
--only-print	Do not connect to databases. mysqlslap only prints what it would have done
--password	Password to use when connecting to server
--pipe	On Windows, connect to server using named pipe
--plugin-dir	Directory where plugins are installed	5.6.2
--port	TCP/IP port number to use for connection
--post-query	File or string containing the statement to execute after the tests have completed
--post-system	String to execute using system() after the tests have completed
--pre-query	File or string containing the statement to execute before running the tests
--pre-system	String to execute using system() before running the tests
--print-defaults	Print default options
--protocol	Connection protocol to use
--query	File or string containing the SELECT statement to use for retrieving data
--secure-auth	Do not send passwords to server in old (pre-4.1) format	5.6.17
--shared-memory-base-name	The name of shared memory to use for shared-memory connections
--silent	Silent mode
--socket	For connections to localhost, the Unix socket file to use
--ssl	Enable secure connection
--ssl-ca	Path of file that contains list of trusted SSL CAs
--ssl-capath	Path of directory that contains trusted SSL CA certificates in PEM format
--ssl-cert	Path of file that contains X509 certificate in PEM format
--ssl-cipher	List of permitted ciphers to use for connection encryption
--ssl-crl	Path of file that contains certificate revocation lists	5.6.3
--ssl-crlpath	Path of directory that contains certificate revocation list files	5.6.3
--ssl-key	Path of file that contains X509 key in PEM format
--ssl-mode	Security state of connection to server	5.6.30
--ssl-verify-server-cert	Verify server certificate Common Name value against host name used when connecting to server
--user	MySQL user name to use when connecting to server
--verbose	Verbose mode
--version	Display version information and exit

參數(shù)參考表： --host=host_name, -h host_name  連接到的MySQL服務(wù)器的主機(jī)名（或IP地址），默認(rèn)為本機(jī)localhost

--user=user_name, -u user_name 連接MySQL服務(wù)時(shí)用的用戶(hù)名

--password[=password], -p[password] 連接MySQL服務(wù)時(shí)用的密碼

--create-schema 代表自定義的測(cè)試庫(kù)名稱(chēng)，測(cè)試的schema，MySQL中schema也就是database。

(沒(méi)指定使用哪個(gè)數(shù)據(jù)庫(kù)時(shí)，可能會(huì)遇到錯(cuò)誤mysqlslap: Error when connecting to server: 1049 Unknown database 'mysqlslap')

--query=name,-q 使用自定義腳本執(zhí)行測(cè)試（可以是SQL字符串或腳本），例如可以調(diào)用自定義的一個(gè)存儲(chǔ)過(guò)程或者sql語(yǔ)句來(lái)執(zhí)行測(cè)試。

--create 創(chuàng)建表所需的SQL（可以是SQL字符串或腳本）

--concurrency=N, -c N 表示并發(fā)量，也就是模擬多少個(gè)客戶(hù)端同時(shí)執(zhí)行query?？芍付ǘ鄠€(gè)值，以逗號(hào)或者--delimiter參數(shù)指定的值做為分隔符。例如：--concurrency=100,200,500（分別執(zhí)行100、200、500個(gè)并發(fā)）。

--iterations=N, -i N 測(cè)試執(zhí)行的迭代次數(shù)，代表要在不同的并發(fā)環(huán)境中，各自運(yùn)行測(cè)試多少次；多次運(yùn)行以便讓結(jié)果更加準(zhǔn)確。

--number-of-queries=N 總的測(cè)試查詢(xún)次數(shù)(并發(fā)客戶(hù)數(shù)×每客戶(hù)查詢(xún)次數(shù))

--engine=engine_name, -e engine_name 代表要測(cè)試的引擎，可以有多個(gè)，用分隔符隔開(kāi)。例如：--engine=myisam,innodb,memory。

--auto-generate-sql, -a 自動(dòng)生成測(cè)試表和數(shù)據(jù)，表示用mysqlslap工具自己生成的SQL腳本來(lái)測(cè)試并發(fā)壓力。

--auto-generate-sql-load-type=type 測(cè)試語(yǔ)句的類(lèi)型。代表要測(cè)試的環(huán)境是讀操作還是寫(xiě)操作還是兩者混合的。取值包括：read (scan tables), write (insert into tables), key (read primary keys), update (update primary keys), or mixed (half inserts, half scanning selects). 默認(rèn)值是：mixed.

--auto-generate-sql-add-auto-increment 代表對(duì)生成的表自動(dòng)添加auto_increment列，從5.1.18版本開(kāi)始支持。

--number-char-cols=N, -x N 自動(dòng)生成的測(cè)試表中包含多少個(gè)字符類(lèi)型的列，默認(rèn)1

--number-int-cols=N, -y N 自動(dòng)生成的測(cè)試表中包含多少個(gè)數(shù)字類(lèi)型的列，默認(rèn)1

--commint=N 多少條DML后提交一次。

--compress, -C 如果服務(wù)器和客戶(hù)端支持都?jí)嚎s，則壓縮信息傳遞。

--only-print 只打印測(cè)試語(yǔ)句而不實(shí)際執(zhí)行。

--detach=N 執(zhí)行N條語(yǔ)句后斷開(kāi)重連。

--debug-info, -T 打印內(nèi)存和CPU的相關(guān)信息。

mysqlslap的運(yùn)行有如下3個(gè)步驟：
1. 創(chuàng)建schema、table、test data 等（在MySQL中，schema就是database）；
2. 運(yùn)行負(fù)載測(cè)試，可以使用多個(gè)并發(fā)客戶(hù)端連接；
3. 測(cè)試環(huán)境清理（刪除創(chuàng)建的數(shù)據(jù)、表等）。

案例：

[root@mysql ~]# mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --auto-generate-sql-add-autoincrement --number-char-cols=10 --number-int-cols=5 -poracle
Warning: Using a password on the command line interface can be insecure.
Benchmark
Average number of seconds to run all queries: 0.775 seconds
Minimum number of seconds to run all queries: 0.775 seconds
Maximum number of seconds to run all queries: 0.775 seconds
Number of clients running queries: 50
Average number of queries per client: 20

Benchmark
Average number of seconds to run all queries: 0.984 seconds
Minimum number of seconds to run all queries: 0.984 seconds
Maximum number of seconds to run all queries: 0.984 seconds
Number of clients running queries: 100
Average number of queries per client: 10

[root@mysql ~]# mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --auto-generate-sql-add-autoincrement --number-char-cols=10 --number-int-cols=5 --engine=myisam,innodb -poracle
Warning: Using a password on the command line interface can be insecure.
Benchmark
Running for engine myisam
Average number of seconds to run all queries: 0.117 seconds
Minimum number of seconds to run all queries: 0.117 seconds
Maximum number of seconds to run all queries: 0.117 seconds
Number of clients running queries: 50
Average number of queries per client: 20

Benchmark
Running for engine myisam
Average number of seconds to run all queries: 0.129 seconds
Minimum number of seconds to run all queries: 0.129 seconds
Maximum number of seconds to run all queries: 0.129 seconds
Number of clients running queries: 100
Average number of queries per client: 10

Benchmark
Running for engine innodb
Average number of seconds to run all queries: 1.665 seconds
Minimum number of seconds to run all queries: 1.665 seconds
Maximum number of seconds to run all queries: 1.665 seconds
Number of clients running queries: 50
Average number of queries per client: 20

Benchmark
Running for engine innodb
Average number of seconds to run all queries: 1.480 seconds
Minimum number of seconds to run all queries: 1.480 seconds
Maximum number of seconds to run all queries: 1.480 seconds
Number of clients running queries: 100
Average number of queries per client: 10

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