前言:根据业务需要,需测试mysql 性能和压力测试.

这里我说下测试方法和 测试过程以及测试中出错的问题

估计很多人 跟我一样 要测试mysql 的性能 压力,网上找了很多资料有很多,但是很乱,所以这里我做个总结,拿自己的真实服务器测试的。并且 想测多少数据 都能模拟出来!这里只介绍方法。


MySQL从5.1.4版开始带有一个压力测试工具mysqlslap,通过模拟多个并发客户端访问
mysql来执行测试。

[root@localhost smacks]# mysql -V
mysql  Ver 14.14 Distrib 5.1.69, for redhat-linux-gnu (x86_64) using readline 5.1


mysqlslap --delimiter=";" --create="CREATE TABLE a (b int);INSERT INTO a VALUES (23)"  --query="SELECT * FROM a" --concurrency=50 --iterations=200 -uadmin -p123456
–auto-generate-sql, -a
自动生成测试表和数据
–auto-generate-sql-load-type=type
测试语句的类型。取值包括:read,key,write,update和mixed(默认)。
–number-char-cols=N, -x N
自动生成的测试表中包含多少个字符类型的列,默认1
–number-int-cols=N, -y N
自动生成的测试表中包含多少个数字类型的列,默认1
–number-of-queries=N
总的测试查询次数(并发客户数×每客户查询次数)
–query=name,-q
使用自定义脚本执行测试,例如可以调用自定义的一个存储过程或者sql语句来执行测试。
–create-schema
测试的schema,MySQL中schema也就是database
–commint=N
多少条DML后提交一次
–compress, -C
如果服务器和客户端支持都压缩,则压缩信息传递
–concurrency=N, -c N
并发量,也就是模拟多少个客户端同时执行select。可指定多个值,以逗号或者–delimiter参数指定的值做为分隔符
–engine=engine_name, -e engine_name
创建测试表所使用的存储引擎,可指定多个
–iterations=N, -i N
测试执行的迭代次数
–detach=N
执行N条语句后断开重连
–debug-info, -T
打印内存和CPU的信息
–only-print
只打印测试语句而不实际执行


自动生成一条测试用的语句,不用你写sql进行测试
比如这句的结果是(分别测试了并发为50,100时,总共进行1000次访问花费的时间 )
这里列出了最大、最小、平均值。均为相同的值,因为只进行了一次测试

mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --iterations=5 --engine=myisam,innodb --debug-info -uadmin -p123456

分别 测试 myisam 和 innodb 引擎

Benchmark
        Running for engine myisam
        Average number of seconds to run all queries: 0.638 seconds
        Minimum number of seconds to run all queries: 0.565 seconds
        Maximum number of seconds to run all queries: 0.924 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: 0.691 seconds
        Minimum number of seconds to run all queries: 0.686 seconds
        Maximum number of seconds to run all queries: 0.696 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: 13.189 seconds
        Minimum number of seconds to run all queries: 12.886 seconds
        Maximum number of seconds to run all queries: 13.337 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: 12.449 seconds
        Minimum number of seconds to run all queries: 12.299 seconds
        Maximum number of seconds to run all queries: 12.592 seconds
        Number of clients running queries: 100
        Average number of queries per client: 10

这个工具 无法 自己规定 多少数据,所以我后来 有拿了 super smack 工具测试

要去网上下载 vegan.net/tony/supersmack/super-smack-1.3.tar.gz

tar zxvf super-smack-1.3.tar.gz
cd super-smack-1.3
./configure --prefix=/usr/local/super-smack-1.3 --with-mysql=/usr/local/mysql/ --with-mysql-lib=/usr/local/mysql/lib/mysql/ --with-mysql-include=/usr/local/mysql/include/mysql/

编译过程后 make 会报错

修改 dictionary.h 和 super-smack.cc 增加#include <string.h>

重点说明一下--with-mysql的编译配置:
编译的时候要把/usr/lib64目录下的libmysqlclient.so.16放到/usr/lib目录下,否则会出现下面的错误:
configure: error: Could not find libmysqlclient in ' /usr/lib /usr/lib/mysql                    /usr/local/lib /usr/local/lib/mysql                    /usr/local/mysql/lib
configure: error: Could not find mysql.h in ' /usr/include /usr/include/mysql                        /usr/local/include /usr/local/include/mysql                        /usr/local/mysql/include'
由于我的mysql是自行编译的,所以我这样操作
cd /usr/include; ln -s /usr/local/mysql/include/mysql
cd /usr/lib; ln -s /usr/local/mysql/lib/mysql

而且还要修改配置文件

dictionary.h: In member function ‘void Unique_dictionary::set_template(const char*)’:
dictionary.h:93:28: error: ‘strlen’ was not declared in this scope
super-smack.cc: In function ‘void set_parse_file(char*)’:
super-smack.cc:65:55: warning: deprecated conversion from string constant to ‘char*’
super-smack.cc: In function ‘void set_db_type(const char*)’:
super-smack.cc:72:48: warning: deprecated conversion from string constant to ‘char*’
super-smack.cc: In function ‘void print_engines()’:
super-smack.cc:126:55: error: ‘strlen’ was not declared in this scope
make[2]: *** [super-smack.o] 错误 1
make[1]: *** [all-recursive] 错误 1
make: *** [all-recursive-am] 错误 2

要修改相应的配置文件才行

编译之前修改文件super-smack-1.3/src/query.cc
第193行:
    < int len = 0, num_recs = 0;
修改成:
    > long len = 0; int num_recs = 0;
第199,200行
    < int str_len = (*i).first.length();
    < if((unsigned)p + str_len + 3 *sizeof(int) < (unsigned)p_end )
修改成:
    > long str_len = (*i).first.length();
    > if((long)p + str_len + 3 *sizeof(int) < (long)p_end )
第219行
    < len = (unsigned)p - (unsigned)buf;
修改成:
    > len = (long)p - (long)buf;

这个我是看了相应教程 找了好久才发现的!

make
make install

介绍相应参数:

开头要修改 密码默认文件

vi select-key.smack

// this is will be used in the table section
client "client"
{
 user "admin";
 host "localhost";
 db "test";
 pass "123456";
 socket "/tmp/mysql.sock"; // this only applies to MySQL and is
// ignored for PostgreSQL
}


改成你所需要的相应密码

super-smack select-key.smack n m
其中super-smack类似于一个解释执行器,解释执行select-key.smack中的内容,n为该次测试的并发线程数,m为每个线程执行数据库操作的次数

smack文件,类似于一个c源文件,具体包括一下几个内容

1.clien,定义创建连接用到的参数,包括host,user,passwd,port,socket。包括两种client,admin client和普通client,admin需要具有管理权限,需要创建表以及load数据等操作

2.表定义,自定义测试表的表结构,需要指定由哪个client创建表,以及表的记录数,以及填充数据文件的位置,如果数据文件不存在,需要生成数据文件,可以自定义数据生成脚本

3.dictionary,定义了一批可选的字段,源码实现得比较简单,只提供了几种next方法,读取下一行数据,如果改行数据用逗号分开,只取第一个逗号前的字段,其他符号分隔则取整行数据。所以如果一个查询里有几个字段需要从外部获取数据,就应该创建几个dictionary

4.查询,可以自定义查询的语句,查询类型(主要用于分类统计的作用),查询语句也可以为更新操作,如update。如果是查询语句,has_result_set选项应该定义为y,否则会出现Commands out of sync错误,感觉这里是super-smack的一个bug

5.main,测试运行的入口,一般改动不大,主要是一些client名称的改动


测试:

mysql 高性能压力测试(总结了好久)_mysql

mysql 高性能压力测试(总结了好久)_mysql_02

gen-data -n 9000 -f %n > words.dat
9000就是数据 你可以改成相应的数值 比如说 5000000

cp words.dat /var/smack-data/words.dat

把 文件复制过去。

然后进入

[root@localhost bin]# cd /usr/share/smacks/
select-key.smack     update-select.smack
[root@localhost bin]# cd /usr/share/smacks/
[root@localhost smacks]# pwd
/usr/share/smacks
super-smack -d mysql /usr/share/smacks/select-key.smack 10 1000

运行命令 开始测试

[root@localhost smacks]# super-smack -d mysql /usr/share/smacks/select-key.smack 10 1000
Query Barrel Report for client smacker
connect: max=6ms  min=0ms avg= 3ms from 10 clients
Query_type      num_queries     max_time        min_time        q_per_s
select_index    10000   3       0       526.21
update_index    10000   9       0       526.21
mysql> alter table http_auth engine innodb;
Query OK, 5000000 rows affected (2 min 32.28 sec)
Records: 5000000  Duplicates: 0  Warnings: 0
mysql> alter table http_auth engine MYISAM;
Query OK, 5000000 rows affected (2 min 29.94 sec)
Records: 5000000  Duplicates: 0  Warnings: 0
select * from http_auth;
| 4895123  | NULL    |   0 |   0 |
| 4895124  | NULL    |   0 |   0 |
| 4895125  | NULL    |   0 |   0 |
| 4895126  | NULL    |   0 |   0 |
| 4895127  | NULL    |   0 |   0 |
| 4895128  | NULL    |   0 |   0 |
| 4895129  | NULL    |   0 |   0 |
| 489513   | NULL    |   0 |   0 |
| 4895130  | NULL    |   0 |   0 |
| 4895131  | NULL    |   0 |   0 |
| 4895132  | NULL    |   0 |   0 |
| 4895133  | NULL    |   0 |   0 |
| 4895134  | NULL    |   0 |   0 |
| 4895135  | NULL    |   0 |   0 |
| 4895136  | NULL    |   0 |   0 |
| 4895137  | NULL    |   0 |   0 |
| 4895138  | NULL    |   0 |   0 |
| 4895139  | NULL    |   0 |   0 |
| 489514   | NULL    |   0 |   0 |
| 4895140  | NULL    |   0 |   0 |
| 4895141  | NULL    |   0 |   0 |
| 4895142  | NULL    |   0 |   0 |
| 4895143  | NULL    |   0 |   0 |
| 4895144  | NULL    |   0 |   0 |
| 4895145  | NULL    |   0 |   0 |
| 4895146  | NULL    |   0 |   0 |
| 4895147  | NULL    |   0 |   0 |
| 4895148  | NULL    |   0 |   0 |
| 4895149  | NULL    |   0 |   0 |
| 489515   | NULL    |   0 |   0 |
| 4895150  | NULL    |   0 |   0 |
| 4895151  | NULL    |   0 |   0 |
| 4895152  | NULL    |   0 |   0 |
| 4895153  | NULL    |   0 |   0 |
| 4895154  | NULL    |   0 |   0 |
| 4895155  | NULL    |   0 |   0 |
| 4895156  | NULL    |   0 |   0 |
| 4895157  | NULL    |   0 |   0 |
| 4895158  | NULL    |   0 |   0 |
| 4895159  | NULL    |   0 |   0 |
| 489516   | NULL    |   0 |   0 |
| 4895160  | NULL    |   0 |   0 |
| 4895161  | NULL    |   0 |   0 |
| 4895162  | NULL    |   0 |   0 |
| 4895163  | NULL    |   0 |   0 |
| 4895164  | NULL    |   0 |   0 |
| 4895165  | NULL    |   0 |   0 |
| 4895166  | NULL    |   0 |   0 |
| 4895167  | NULL    |   0 |   0 |
| 4895168  | NULL    |   0 |   0 |
| 4895169  | NULL    |   0 |   0 |
| 489517   | NULL    |   0 |   0 |
| 4895170  | NULL    |   0 |   0 |
| 4895171  | NULL    |   0 |   0 |
| 4895172  | NULL    |   0 |   0 |
| 4895173  | NULL    |   0 |   0 |
| 4895174  | NULL    |   0 |   0 |
| 4895175  | NULL    |   0 |   0 |
| 4895176  | NULL    |   0 |   0 |
| 4895177  | NULL    |   0 |   0 |
| 4895178  | NULL    |   0 |   0 |
| 4895179  | NULL    |   0 |   0 |
| 489518   | NULL    |   0 |   0 |
| 4895180  | NULL    |   0 |   0 |
| 4895181  | NULL    |   0 |   0 |
| 4895182  | NULL    |   0 |   0 |
| 4895183  | NULL    |   0 |   0 |
| 4895184  | NULL    |   0 |   0 |
| 4895185  | NULL    |   0 |   0 |
| 4895186  | NULL    |   0 |   0 |
| 4895187  | NULL    |   0 |   0 |
| 4895188  | NULL    |   0 |   0 |
| 4895189  | NULL    |   0 |   0 |
| 489519   | NULL    |   0 |   0 |
| 4895190  | NULL    |   0 |   0 |
| 4895191  | NULL    |   0 |   0 |
| 4895192  | NULL    |   0 |   0 |
| 4895193  | NULL    |   0 |   0 |
| 4895194  | NULL    |   0 |   0 |
| 4895195  | NULL    |   0 |   0 |
| 4895196  | NULL    |   0 |   0 |
| 4895197  | NULL    |   0 |   0 |
| 4895198  | NULL    |   0 |   0 |
| 4895199  | NULL    |   0 |   0 |
| 48952    | NULL    |   0 |   0 |
| 489520   | NULL    |   0 |   0 |
| 4895200  | NULL    |   0 |   0 |
| 4895201  | NULL    |   0 |   0 |
| 4895202  | NULL    |   0 |   0 |
| 4895203  | NULL    |   0 |   0 |
| 4895204  | NULL    |   0 |   0 |
| 4895205  | NULL    |   0 |   0 |
| 4895206  | NULL    |   0 |   0 |
| 4895207  | NULL    |   0 |   0 |
| 4895208  | NULL    |   0 |   0 |
| 4895209  | NULL    |   0 |   0 |
| 489521   | NULL    |   0 |   0 |
| 4895210  | NULL    |   0 |   0 |
| 4895211  | NULL    |   0 |   0 |
| 4895212  | NULL    |   0 |   0 |
| 4895213  | NULL    |   0 |   0 |
| 4895214  | NULL    |   0 |   0 |
| 4895215  | NULL    |   0 |   0 |
| 4895216  | NULL    |   0 |   0 |
| 4895217  | NULL    |   0 |   0 |
| 4895218  | NULL    |   0 |   0 |
| 4895219  | NULL    |   0 |   0 |
| 489522   | NULL    |   0 |   0 |
| 4895220  | NULL    |   0 |   0 |
| 4895221  | NULL    |   0 |   0 |
| 4895222  | NULL    |   0 |   0 |
| 4895223  | NULL    |   0 |   0 |
| 4895224  | NULL    |   0 |   0 |
| 4895225  | NULL    |   0 |   0 |
| 4895226  | NULL    |   0 |   0 |
| 4895227  | NULL    |   0 |   0 |
| 4895228  | NULL    |   0 |   0 |
| 4895229  | NULL    |   0 |   0 |
| 489523   | NULL    |   0 |   0 |
| 4895230  | NULL    |   0 |   0 |
| 4895231  | NULL    |   0 |   0 |
| 4895232  | NULL    |   0 |   0 |
| 4895233  | NULL    |   0 |   0 |
| 4895234  | NULL    |   0 |   0 |
| 4895235  | NULL    |   0 |   0 |
| 4895236  | NULL    |   0 |   0 |
| 4895237  | NULL    |   0 |   0 |
| 4895238  | NULL    |   0 |   0 |
| 4895239  | NULL    |   0 |   0 |
| 489524   | NULL    |   0 |   0 |
| 4895240  | NULL    |   0 |   0 |
| 4895241  | NULL    |   0 |   0 |
| 4895242  | NULL    |   0 |   0 |
| 4895243  | NULL    |   0 |   0 |
| 4895244  | NULL    |   0 |   0 |
| 4895245  | NULL    |   0 |   0 |
| 4895246  | NULL    |   0 |   0 |
| 4895247  | NULL    |   0 |   0 |
| 4895248  | NULL    |   0 |   0 |
| 4895249  | NULL    |   0 |   0 |
| 489525   | NULL    |   0 |   0 |
| 4895250  | NULL    |   0 |   0 |
| 4895251  | NULL    |   0 |   0 |
| 4895252  | NULL    |   0 |   0 |
| 4895253  | NULL    |   0 |   0 |
| 4895254  | NULL    |   0 |   0 |
| 4895255  | NULL    |   0 |   0 |
| 4895256  | NULL    |   0 |   0 |
| 4895257  | NULL    |   0 |   0 |
| 4895258  | NULL    |   0 |   0 |
| 4895259  | NULL    |   0 |   0 |
| 489526   | NULL    |   0 |   0 |
| 4895260  | NULL    |   0 |   0 |
| 4895261  | NULL    |   0 |   0 |
| 4895262  | NULL    |   0 |   0 |
| 4895263  | NULL    |   0 |   0 |
| 4895264  | NULL    |   0 |   0 |
| 4895265  | NULL    |   0 |   0 |
| 4895266  | NULL    |   0 |   0 |
| 4895267  | NULL    |   0 |   0 |
| 4895268  | NULL    |   0 |   0 |
| 4895269  | NULL    |   0 |   0 |
| 489527   | NULL    |   0 |   0 |
| 4895270  | NULL    |   0 |   0 |
| 4895271  | NULL    |   0 |   0 |
| 4895272  | NULL    |   0 |   0 |
| 4895273  | NULL    |   0 |   0 |
| 4895274  | NULL    |   0 |   0 |
| 4895275  | NULL    |   0 |   0 |
| 4895276  | NULL    |   0 |   0 |
| 4895277  | NULL    |   0 |   0 |
| 4895278  | NULL    |   0 |   0 |
| 4895279  | NULL    |   0 |   0 |
| 489528   | NULL    |   0 |   0 |
| 4895280  | NULL    |   0 |   0 |
| 4895281  | NULL    |   0 |   0 |
| 4895282  | NULL    |   0 |   0 |
| 4895283  | NULL    |   0 |   0 |
| 4895284  | NULL    |   0 |   0 |
| 4895285  | NULL    |   0 |   0 |
| 4895286  | NULL    |   0 |   0 |
| 4895287  | NULL    |   0 |   0 |
| 4895288  | NULL    |   0 |   0 |
| 4895289  | NULL    |   0 |   0 |
| 489529   | NULL    |   0 |   0 |
| 4895290  | NULL    |   0 |   0 |
| 4895291  | NULL    |   0 |   0 |
| 4895292  | NULL    |   0 |   0 |
| 4895293  | NULL    |   0 |   0 |
| 4895294  | NULL    |   0 |   0 |
| 4895295  | NULL    |   0 |   0 |
| 4895296  | NULL    |   0 |   0 |
| 4895297  | NULL    |   0 |   0 |
| 4895298  | NULL    |   0 |   0 |
| 4895299  | NULL    |   0 |   0 |
| 48953    | NULL    |   0 |   0 |
| 489530   | NULL    |   0 |   0 |
| 4895300  | NULL    |   0 |   0 |
| 4895301  | NULL    |   0 |   0 |
| 4895302  | NULL    |   0 |   0 |
| 4895303  | NULL    |   0 |   0 |
| 4895304  | NULL    |   0 |   0 |
| 4895305  | NULL    |   0 |   0 |
| 4895306  | NULL    |   0 |   0 |
| 4895307  | NULL    |   0 |   0 |
| 4895308  | NULL    |   0 |   0 |
| 4895309  | NULL    |   0 |   0 |
| 489531   | NULL    |   0 |   0 |
| 4895310  | NULL    |   0 |   0 |
| 4895311  | NULL    |   0 |   0 |
| 4895312  | NULL    |   0 |   0 |
| 4895313  | NULL    |   0 |   0 |
| 4895314  | NULL    |   0 |   0 |
| 4895315  | NULL    |   0 |   0 |
| 4895316  | NULL    |   0 |   0 |
| 4895317  | NULL    |   0 |   0 |
| 4895318  | NULL    |   0 |   0 |
| 4895319  | NULL    |   0 |   0 |
| 489532   | NULL    |   0 |   0 |
| 4895320  | NULL    |   0 |   0 |
| 4895321  | NULL    |   0 |   0 |
| 4895322  | NULL    |   0 |   0 |
| 4895323  | NULL    |   0 |   0 |
5000000 rows in set (10.72 sec)

这样就能达到你的效果了,如果你需要改字段

// ensure the table exists and meets the conditions
table "http_auth"
{
  client "client"; // connect with this client
 // if the table is not found or does not pass the checks, create it
 // with the following, dropping the old one if needed
  create "create table http_auth
    (username char(25) not null primary key,
     pass char(25),
     uid integer not null,
     gid integer not null
    )";
  min_rows "5000000"; // the table must have at least that many rows
  data_file "words.dat"; // if the table is empty, load the data from
//this file
  gen_data_file "gen-data -n 5000000 -f %12-12s%n,%25-25s,%n,%d";
// if the file above does not exist, generate it with the above command
}

直接修改相应字段就可以了!这样测试就方便多了,给大家方便快捷,也能达到任务需要!不管多少数据都能测试!ok 就写到这,因为我也是刚用!慢慢熟悉吧!

根据需要每个列名都要有数据

gen-data -n 5000000 -f %12-12s%n,%25-25s,%n,%d > /var/smack-data/words.dat
[root@localhost smacks]# super-smack -d mysql /usr/share/smacks/select-key.smack 10 1000
select * from http_auth;
| aabbevmabgiq2034184 | vvlcduqibaihmmhhqwttywudu | 2034184 |  674655809 |
| fxsnoojdtoxk2034185 | wymiibwrinqfjqcfvaqexjtnb | 2034185 | 2096770029 |
| susqhsptdawa2034186 | ripinabrharxeqiagjgygcpnu | 2034186 | 1683359057 |
| jxhiabqplgpn2034187 | yypqxvjivrtdqafipcryabjcc | 2034187 | 1641721901 |
| rohkeijtchpl2034188 | rnelqwlvgbxacacocgpwuyjbi | 2034188 | 1220581668 |
| umdmxubehtcu2034189 | qkyqmdtorxvjusleuvaridhia | 2034189 |  886946585 |
| njerfwegqqjk2034190 | ieiengyymvuoqdtxmukcgovno | 2034190 | 1250124550 |
| tfsgpbkafxih2034191 | axdwmtbhtpcetkvpykrspkbhm | 2034191 |  522496211 |
| jtksbmsfjfbm2034192 | mveqaxcxpbihvasxhfltyxodk | 2034192 |  992099432 |
| iumlhchmskmu2034193 | idxtkwtfwemixmhorrvcoknwm | 2034193 |  241604373 |
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| icqtgjpimrnw2034401 | aliqkdofldkgjjepoyfwbxtkh | 2034401 |  885327661 |
| sudgtftcwehn2034402 | muqycdkgsyfaxjxttifofkwyq | 2034402 | 1603547941 |
| dpxmdmivlkyv2034403 | qtwxtujurdfytkkqldkqskdxw | 2034403 | 1067024161 |
| tivveorbnoxw2034404 | jrdqrybesojdfenicmuxusvbk | 2034404 | 1043402189 |
| eadeyowcfqei2034405 | uwwgcckrkmehmydjcnagndkmt | 2034405 | 2124832757 |
| ryaxhwuedwin2034406 | qscudpvgbxvbelgqaabrybpiy | 2034406 | 1128566462 |
5000000 rows
in set (7 min 1.64 sec)
[root@localhost smacks]# super-smack -d mysql /usr/share/smacks/select-key.smack 10 1000
Query Barrel Report for client smacker
connect: max=5ms  min=4ms avg= 5ms from 10 clients
Query_type      num_queries     max_time        min_time        q_per_s
select_index    10000   5       0       1205.07
update_index    10000   2       0       1205.07

结语:因为午休时间写的,没有做排版!等有重新整理下博客!