使用mysqlslap进行MySQL压力测试

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，使用起来非常的简单。通过mysqlslap �Chelp可以获得可用的选项，这里列一些主要的参数，更详细的说明参考官方手册。

1. --auto-generate-sql, -a

2. 自动生成测试表和数据

3. 
   

4. --auto-generate-sql-load-type=type

5. 测试语句的类型。取值包括：read，key，write，update和mixed(默认)。

6. 
   

7. --number-char-cols=N, -x N

8. 自动生成的测试表中包含多少个字符类型的列，默认1

9. 
   

10. --number-int-cols=N, -y N

11. 自动生成的测试表中包含多少个数字类型的列，默认1

12. 
    

13. --number-of-queries=N

14. 总的测试查询次数(并发客户数×每客户查询次数)

15. 
    

16. --query=name,-q

17. 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。

18. 
    

19. --create-schema

20. 测试的schema，MySQL中schema也就是database

21. 
    

22. --commint=N

23. 多少条DML后提交一次

24. 
    

25. --compress, -C

26. 如果服务器和客户端支持都压缩，则压缩信息传递

27. 
    

28. --concurrency=N, -c N

29. 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�Cdelimiter参数指定的值做为分隔符

30. 
    

31. --engine=engine_name, -e engine_name

32. 创建测试表所使用的存储引擎，可指定多个，用分隔符隔开。

33. 
    

34. --iterations=N, -i N

35. 测试执行的迭代次数

36. 
    

37. --detach=N

38. 执行N条语句后断开重连

39. 
    

40. --debug-info, -T

41. 打印内存和CPU的信息

42. 
    

43. --only-print

44. 只打印测试语句而不实际执行

45. 
    

46. --defaults-file

47. 配置文件存放位置

48. 
    

49. --socket＝name,-S

50. 指定socket文件位置

一些实例
　　用自动生成的测试数据进行测试，且只打印实际的测试过程。

1. # /usr/local/webserver/mysql/bin/mysqlslap  -a --only-print

2. DROP SCHEMA IF EXISTS `mysqlslap`;

3. CREATE SCHEMA `mysqlslap`;

4. use mysqlslap;

5. CREATE TABLE `t1` (intcol1 INT(32) ,charcol1 VARCHAR(128));

6. INSERT INTO t1 VALUES (1804289383,'mxvtvmC9127qJNm06sGB8R92q2j7vTiiITRDGXM9ZLzkdekbWtmXKwZ2qG1llkRw5m9DHOFilEREk3q7oce8O3BEJC0woJsm6uzFAEynLH2xCsw1KQ1lT4zg9rdxBL');

7. INSERT INTO t1 VALUES (822890675,'97RGHZ65mNzkSrYT3zWoSbg9cNePQr1bzSk81qDgE4Oanw3rnPfGsBHSbnu1evTdFDe83ro9w4jjteQg4yoo9xHck3WNqzs54W5zEm92ikdRF48B2oz3m8gMBAl11W');

8. ......

9. INSERT INTO t1 VALUES (100669,'qnMdipW5KkXdTjGCh2PNzLoeR0527frpQDQ8uw67Ydk1K06uuNHtkxYBxT5w8plb2BbpzhwYBgPNYX9RmICWGkZD6fAESvhMzH3yqzMtXoH4BQNylbK1CmEIPGYlC6');

10. SELECT intcol1,charcol1 FROM t1;

11. INSERT INTO t1 VALUES (73673339,'BN3152Gza4GW7atxJKACYwJqDbFynLxqc0kh30YTwgz3FktQ43XTrqJ4PQ25frn7kXhfXD8RuzN1j8Rf3y8ugKy6es3IbqPJM6ylCyD6xS7YcQCfHKZxYNvB7yTahm');

12. DROP SCHEMA IF EXISTS `mysqlslap`;

分别100和200个并发，执行1000次总查询

1. $mysqlslap -a --concurrency=50,100 --number-of-queries 1000 --debug-info

2. 
   

3. # /usr/local/webserver/mysql/bin/mysqlslap  -a --concurrency=100,200 --number-of-queries 1000 --debug-info

4. 
   

5. Benchmark

6. Average number of seconds to run all queries: 0.232 seconds

7. Minimum number of seconds to run all queries: 0.232 seconds

8. Maximum number of seconds to run all queries: 0.232 seconds

9. Number of clients running queries: 100

10. Average number of queries per client: 10

11. 
    

12. Benchmark

13. Average number of seconds to run all queries: 0.268 seconds

14. Minimum number of seconds to run all queries: 0.268 seconds

15. Maximum number of seconds to run all queries: 0.268 seconds

16. Number of clients running queries: 200

17. Average number of queries per client: 5

18. 
    

19. 
    

20. User time 0.02, System time 0.49

21. Maximum resident set size 6100, Integral resident set size 0

22. Non-physical pagefaults 3165, Physical pagefaults 0, Swaps 0

23. Blocks in 0 out 0, Messages in 0 out 0, Signals 0

24. Voluntary context switches 3102, Involuntary context switches 7541

分别200和400个并发，执行2000次总查询并迭代8次

1. # /usr/local/webserver/mysql/bin/mysqlslap -a   --concurrency=200,400 --number-of-queries 2000 --iterations=8  --debug-info

2. 
   

3. Benchmark

4. Average number of seconds to run all queries: 0.657 seconds

5. Minimum number of seconds to run all queries: 0.603 seconds

6. Maximum number of seconds to run all queries: 0.736 seconds

7. Number of clients running queries: 200

8. Average number of queries per client: 10

9. 
   

10. Benchmark

11. Average number of seconds to run all queries: 0.711 seconds

12. Minimum number of seconds to run all queries: 0.648 seconds

13. Maximum number of seconds to run all queries: 0.860 seconds

14. Number of clients running queries: 400

15. Average number of queries per client: 5

16. 
    

17. 
    

18. User time 0.58, System time 9.12

19. Maximum resident set size 30764, Integral resident set size 0

20. Non-physical pagefaults 92471, Physical pagefaults 0, Swaps 0

21. Blocks in 0 out 0, Messages in 0 out 0, Signals 0

22. Voluntary context switches 99629, Involuntary context switches 157741

同时测试不同的存储引擎

1. # /usr/local/webserver/mysql/bin/mysqlslap -a   --concurrency=200,400 --number-of-queries 2000 --iterations=8 　--engine=myisam,innodb  --debug-info

2. 
   

3. Benchmark

4. Average number of seconds to run all queries: 0.740 seconds

5. Minimum number of seconds to run all queries: 0.678 seconds

6. Maximum number of seconds to run all queries: 0.827 seconds

7. Number of clients running queries: 200

8. Average number of queries per client: 10

9. 
   

10. Benchmark

11. Average number of seconds to run all queries: 0.696 seconds

12. Minimum number of seconds to run all queries: 0.661 seconds

13. Maximum number of seconds to run all queries: 0.775 seconds

14. Number of clients running queries: 400

15. Average number of queries per client: 5

16. 
    

17. 
    

18. User time 0.62, System time 9.27

19. Maximum resident set size 33368, Integral resident set size 0

20. Non-physical pagefaults 89594, Physical pagefaults 0, Swaps 0

21. Blocks in 0 out 0, Messages in 0 out 0, Signals 0

22. Voluntary context switches 98328, Involuntary context switches 153787

指定数据库的测试

1. # /usr/local/webserver/mysql/bin/mysqlslap  --concurrency=500 --iterations=8 --create-schema=test --query=/root/test.sql

2. 
   

3. Benchmark

4. Average number of seconds to run all queries: 0.343 seconds

5. Minimum number of seconds to run all queries: 0.283 seconds

6. Maximum number of seconds to run all queries: 0.525 seconds

7. Number of clients running queries: 500

8. Average number of queries per client: 1

转自：http://www.mike.org.cn/articles/mysql-stress-tests-conducted-by-mysqlslap/