mysqlslap 可以用于模拟服务器的负载，并输出计时信息。其被包含在 MySQL 5.1 的发行包中。测试时，可以指定并发连接数，可以指定 SQL 语句。如果没有指定 SQL 语句，mysqlslap 会自动生成查询 schema 的 SELECT 语句。
1. 查看帮助信息。
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[root@Betty libmysql]
# mysqlslap --help
mysqlslap Ver 1.0 Distrib 5.6.10,
for
Linux (x86_64)
Copyright (c) 2005, 2013, Oracle and
/or
its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and
/or
its
affiliates. Other names may be trademarks of their respective
owners.
Run a query multiple
times
against the server.
Usage: mysqlslap [OPTIONS]
Default options are
read
from the following files
in
the given order:
/etc/my
.cnf
/etc/mysql/my
.cnf
/usr/local/mysql/etc/my
.cnf ~/.my.cnf
The following
groups
are
read
: mysqlslap client
The following options may be given as the first argument:
--print-defaults Print the program argument list and
exit
.
--no-defaults Don't
read
default options from any option
file
,
except
for
login
file
.
--defaults-
file
=
# Only read default options from the given file #.
--defaults-extra-
file
=
# Read this file after the global files are read.
--defaults-group-suffix=
#
Also
read
groups
with concat(group, suffix)
--login-path=
# Read this path from the login file.
-?, --help Display this help and
exit
.
-a, --auto-generate-sql 自动生成测试表和数据
Generate SQL where not supplied by
file
or
command
line.
--auto-generate-sql-add-autoincrement 增加auto_increment一列
Add an AUTO_INCREMENT column to auto-generated tables.
--auto-generate-sql-execute-number=
# 自动生成的查询的个数
Set this number to generate a
set
number of queries to
run.
--auto-generate-sql-guid-primary 增加基于GUID的主键
Add GUID based primary keys to auto-generated tables.
--auto-generate-sql-load-
type
=name 测试语句的类型。取值包括：
read
，key，write，update和mixed(默认)
read
:查询 write:插入 key:读主键 update:更新主键 mixed:一半插入一半查询
Specify
test
load
type
: mixed, update, write, key, or
read
; default is mixed.
--auto-generate-sql-secondary-indexes=
# 增加二级索引的个数，默认是0
Number of secondary indexes to add to auto-generated
tables.
--auto-generate-sql-unique-query-number=
# 不同查询的数量，默认值是10
Number of unique queries to generate
for
automatic tests.
--auto-generate-sql-unique-write-number=
# 不同插入的数量，默认是100
Number of unique queries to generate
for
auto-generate-sql-write-number.
--auto-generate-sql-write-number=
#
Number of row inserts to perform
for
each thread (default
is 100).
--commit=
# 多少条DML后提交一次
Commit records every X number of statements.
-C, --compress 如果服务器和客户端支持都压缩，则压缩信息传递
Use compression
in
server
/client
protocol.
-c, --concurrency=name 模拟N个客户端并发执行
select
。可指定多个值，以逗号或者 --delimiter 参数指定的值做为分隔符
Number of clients to simulate
for
query to run.
--create=name 指定用于创建表的.sql文件或者字串
File or string to use create tables.
--create-schema=name 指定待测试的数据库名，MySQL中schema也就是database，默认是mysqlslap
Schema to run tests
in
.
--csv[=name] Generate CSV output to named
file
or to stdout
if
no
file
is named.
-
#, --debug[=#] This is a non-debug version. Catch this and exit.
--debug-check Check memory and
open
file
usage at
exit
.
-T, --debug-info 打印内存和CPU的信息
Print some debug info at
exit
.
--default-auth=name Default authentication client-side plugin to use.
-F, --delimiter=name 文件中的SQL语句使用分割符号
Delimiter to use
in
SQL statements supplied
in
file
or
command
line.
--detach=
# 每执行完N个语句，先断开再重新打开连接
Detach (close and reopen) connections after X number of
requests.
--
enable
-cleartext-plugin
Enable
/disable
the
clear
text authentication plugin.
-e, --engine=name 创建测试表所使用的存储引擎，可指定多个
Storage engine to use
for
creating the table.
-h, --host=name Connect to host.
-i, --iterations=
# 迭代执行的次数
Number of
times
to run the tests.
--no-drop Do not drop the schema after the
test
.
-x, --number-char-cols=name 自动生成的测试表中包含多少个字符类型的列，默认1
Number of VARCHAR columns to create
in
table
if
specifying --auto-generate-sql.
-y, --number-int-cols=name 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 INT columns to create
in
table
if
specifying
--auto-generate-sql.
--number-of-queries=
# 总的测试查询次数(并发客户数×每客户查询次数)
Limit each client to this number of queries (this is not
exact).
--only-print 只输出模拟执行的结果，不实际执行
Do not connect to the databases, but instead print out
what would have been
done
.
-p, --password[=name]
Password to use when connecting to server. If password is
not given it's asked from the
tty
.
--plugin-
dir
=name Directory
for
client-side plugins.
-P, --port=
# Port number to use for connection.
--post-query=name 测试完成以后执行的SQL语句的文件或者字符串 这个过程不影响时间计算
Query to run or
file
containing query to execute after
tests have completed.
--post-system=name 测试完成以后执行的系统语句 这个过程不影响时间计算
system() string to execute after tests have completed.
--pre-query=name 测试执行之前执行的SQL语句的文件或者字符串 这个过程不影响时间计算
Query to run or
file
containing query to execute before
running tests.
--pre-system=name 测试执行之前执行的系统语句 这个过程不影响时间计算
system() string to execute before running tests.
--protocol=name The protocol to use
for
connection (tcp, socket, pipe,
memory).
-q, --query=name 指定自定义.sql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
Query to run or
file
containing query to run.
-s, --silent 不输出
Run program
in
silent mode - no output.
-S, --socket=name The socket
file
to use
for
connection.
--ssl Enable SSL
for
connection (automatically enabled with
other flags).
--ssl-ca=name CA
file
in
PEM
format
(check OpenSSL docs, implies
--ssl).
--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).
--ssl-cert=name X509 cert
in
PEM
format
(implies --ssl).
--ssl-cipher=name SSL cipher to use (implies --ssl).
--ssl-key=name X509 key
in
PEM
format
(implies --ssl).
--ssl-crl=name Certificate revocation list (implies --ssl).
--ssl-crlpath=name Certificate revocation list path (implies --ssl).
--ssl-verify-server-cert
Verify server's
"Common Name"
in
its cert against
hostname
used when connecting. This option is disabled by
default.
-u, --user=name User
for
login
if
not current user.
-
v
, --verbose 输出更多的信息
More verbose output; you can use this multiple
times
to
get even
more
verbose output.
-V, --version Output version information and
exit
.
[root@Betty libmysql]
#
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2. 以自动生成测试表和数据的形式，分别模拟 50 和 100 个客户端并发连接处理 1000 个 query 的情况。
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[root@Betty libmysql]
# mysqlslap -a --concurrency=50,100 --number-of-queries=1000
Benchmark
Average number of seconds to run all queries: 0.148 seconds
Minimum number of seconds to run all queries: 0.148 seconds
Maximum number of seconds to run all queries: 0.148 seconds
Number of clients running queries: 50
Average number of queries per client: 20
Benchmark
Average number of seconds to run all queries: 0.246 seconds
Minimum number of seconds to run all queries: 0.246 seconds
Maximum number of seconds to run all queries: 0.246 seconds
Number of clients running queries: 100
Average number of queries per client: 10
[root@Betty libmysql]
#
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3. 增加 --debug-info 选项，可以输出内存和CPU信息。
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[root@Betty libmysql]
# mysqlslap -a --concurrency=50,100 --number-of-queries=1000 --debug-info
Benchmark
Average number of seconds to run all queries: 0.202 seconds
Minimum number of seconds to run all queries: 0.202 seconds
Maximum number of seconds to run all queries: 0.202 seconds
Number of clients running queries: 50
Average number of queries per client: 20
Benchmark
Average number of seconds to run all queries: 0.193 seconds
Minimum number of seconds to run all queries: 0.193 seconds
Maximum number of seconds to run all queries: 0.193 seconds
Number of clients running queries: 100
Average number of queries per client: 10
User
time
0.09, System
time
0.05
Maximum resident
set
size 7848, Integral resident
set
size 0
Non-physical pagefaults 4221, Physical pagefaults 0, Swaps 0
Blocks
in
0 out 0, Messages
in
0 out 0, Signals 0
Voluntary context switches 7314, Involuntary context switches 1400
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4. 增加 --iterations 选项，可以 重复执行 5 次
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[root@Betty libmysql]
#
[root@Betty libmysql]
# mysqlslap -a --concurrency=50,100 --number-of-queries=1000 --iterations=5 --debug-info
Benchmark
Average number of seconds to run all queries: 0.168 seconds
Minimum number of seconds to run all queries: 0.147 seconds
Maximum number of seconds to run all queries: 0.217 seconds
Number of clients running queries: 50
Average number of queries per client: 20
Benchmark
Average number of seconds to run all queries: 0.209 seconds
Minimum number of seconds to run all queries: 0.156 seconds
Maximum number of seconds to run all queries: 0.280 seconds
Number of clients running queries: 100
Average number of queries per client: 10
User
time
0.47, System
time
0.25
Maximum resident
set
size 9848, Integral resident
set
size 0
Non-physical pagefaults 16880, Physical pagefaults 0, Swaps 0
Blocks
in
0 out 0, Messages
in
0 out 0, Signals 0
Voluntary context switches 35954, Involuntary context switches 6583
[root@Betty libmysql]
#
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5. 可以 针对远程主机上的 mysql 进行测试。
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[root@Betty Shell]
# mysqlslap -a --concurrency=50,100 --number-of-queries=1000 -h 172.16.81.99 -P 3306 -p
Enter password:
Benchmark
Average number of seconds to run all queries: 2.009 seconds
Minimum number of seconds to run all queries: 2.009 seconds
Maximum number of seconds to run all queries: 2.009 seconds
Number of clients running queries: 50
Average number of queries per client: 20
Benchmark
Average number of seconds to run all queries: 4.519 seconds
Minimum number of seconds to run all queries: 4.519 seconds
Maximum number of seconds to run all queries: 4.519 seconds
Number of clients running queries: 100
Average number of queries per client: 10
[root@Betty Shell]
#
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6. 使用 --only-print 选项，可以查看 mysqlslap 在测试过程中如何执行的 sql 语句。在这种方式下，仅会对数据库进行模拟操作。如下显示的自动产生测试表和数据的情况下，mysqlslap 的执行过程： 创建一个临时的库 mysqlslap ，并在测试结束是会将其删除。
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[root@Betty libmysql]
# mysqlslap -a --only-print
DROP SCHEMA IF EXISTS `mysqlslap`;
CREATE SCHEMA `mysqlslap`;
use mysqlslap;
CREATE TABLE `t1` (intcol1 INT(32) ,charcol1 VARCHAR(128));
INSERT INTO t1 VALUES (1804289383,
'mxvtvmC9127qJNm06sGB8R92q2j7vTiiITRDGXM9ZLzkdekbWtmXKwZ2qG1llkRw5m9DHOFilEREk3q7oce8O3BEJC0woJsm6uzFAEynLH2xCsw1KQ1lT4zg9rdxBL'
);
INSERT INTO t1 VALUES (822890675,
'97RGHZ65mNzkSrYT3zWoSbg9cNePQr1bzSk81qDgE4Oanw3rnPfGsBHSbnu1evTdFDe83ro9w4jjteQg4yoo9xHck3WNqzs54W5zEm92ikdRF48B2oz3m8gMBAl11W'
);
INSERT INTO t1 VALUES (1308044878,
'50w46i58Giekxik0cYzfA8BZBLADEg3JhzGfZDoqvQQk0Akcic7lcJInYSsf9wqin6LDC1vzJLkJXKn5onqOy04MTw1WksCYqPl2Jg2eteqOqTLfGCvE4zTZwWvgMz'
);
INSERT INTO t1 VALUES (964445884,
'DPh7kD1E6f4MMQk1ioopsoIIcoD83DD8Wu7689K6oHTAjD3Hts6lYGv8x9G0EL0k87q8G2ExJjz2o3KhnIJBbEJYFROTpO5pNvxgyBT9nSCbNO9AiKL9QYhi0x3hL9'
);
INSERT INTO t1 VALUES (1586903190,
'lwRHuWm4HE8leYmg66uGYIp6AnAr0BDd7YmuvYqCfqp9EbhKZRSymA4wx6gpHlJHI53DetH9j7Ixar90Jey5outd1ZIAJdJTjMaD7rMiqYXHFhHaB7Xr1HKuqe51GG'
);
INSERT INTO t1 VALUES (962033002,
'rfw4egILWisfxPwOc3nJx4frnAwgI539kr5EXFbupSZelM2MHqZEmD6ZNuEZzHib8fqYuHQbdrDND8lXqIdcNbAeWOBLZlpZOX5AoNlQFzpK7QjxcLP0wbWIriYGJL'
);
INSERT INTO t1 VALUES (1910858270,
'ksnug3YyANnWWDEJiRkiFC4a3e6KyJ2i3hSjksiuFLHlRXw9yhjDtnfoQd0OouyrcIbCB9zQWG4pf0yTZhaIT67nj7BY21FWJqaWrZxEh13Kt2hRbGl4MsrxsuLmvd'
);
INSERT INTO t1 VALUES (63299708,
'FJid3GaHpRC2L6jgirPm5AW3uGGgCloJ5Ww0eNHSiLWvS5bAxto23AxxR6TXr9qofeoAtxWcJsXnxzxmsdhvoekFc5mSES8tyxvsuPK5Hjs7ihtaJaLz5xEh2s1GCA'
);
INSERT INTO t1 VALUES (737703662,
'2zxutF6rOqjXYHHzSrKRwAhWCPXTdhNXYKQIRO9sEkFf1YeTGqw40Ta5u6QNfpvC1DWTTXDkFSFHtte9bbDSwgZjmryHglLhqjAKEF4MkJfT49eXcjzZNOG1F6BnsY'
);
INSERT INTO t1 VALUES (1348361729,
'i8X2EnycNH7sDHMltxcILtQE0ZPoPq9zyg24J0hiAgQNpg8jedtrWK5WtXIALR9B03FJ4ou6TCTAtWtN7fETzBzkiAmvTv6LrEZn2RtNfMaOkJfjytCp54ZfEJbb7Z'
);
INSERT INTO t1 VALUES (1804289383,
'mxvtvmC9127qJNm06sGB8R92q2j7vTiiITRDGXM9ZLzkdekbWtmXKwZ2qG1llkRw5m9DHOFilEREk3q7oce8O3BEJC0woJsm6uzFAEynLH2xCsw1KQ1lT4zg9rdxBL'
);
INSERT INTO t1 VALUES (822890675,
'97RGHZ65mNzkSrYT3zWoSbg9cNePQr1bzSk81qDgE4Oanw3rnPfGsBHSbnu1evTdFDe83ro9w4jjteQg4yoo9xHck3WNqzs54W5zEm92ikdRF48B2oz3m8gMBAl11W'
);
INSERT INTO t1 VALUES (1308044878,
'50w46i58Giekxik0cYzfA8BZBLADEg3JhzGfZDoqvQQk0Akcic7lcJInYSsf9wqin6LDC1vzJLkJXKn5onqOy04MTw1WksCYqPl2Jg2eteqOqTLfGCvE4zTZwWvgMz'
);
INSERT INTO t1 VALUES (964445884,
'DPh7kD1E6f4MMQk1ioopsoIIcoD83DD8Wu7689K6oHTAjD3Hts6lYGv8x9G0EL0k87q8G2ExJjz2o3KhnIJBbEJYFROTpO5pNvxgyBT9nSCbNO9AiKL9QYhi0x3hL9'
);
INSERT INTO t1 VALUES (1586903190,
'lwRHuWm4HE8leYmg66uGYIp6AnAr0BDd7YmuvYqCfqp9EbhKZRSymA4wx6gpHlJHI53DetH9j7Ixar90Jey5outd1ZIAJdJTjMaD7rMiqYXHFhHaB7Xr1HKuqe51GG'
);
INSERT INTO t1 VALUES (962033002,
'rfw4egILWisfxPwOc3nJx4frnAwgI539kr5EXFbupSZelM2MHqZEmD6ZNuEZzHib8fqYuHQbdrDND8lXqIdcNbAeWOBLZlpZOX5AoNlQFzpK7QjxcLP0wbWIriYGJL'
);
INSERT INTO t1 VALUES (1910858270,
'ksnug3YyANnWWDEJiRkiFC4a3e6KyJ2i3hSjksiuFLHlRXw9yhjDtnfoQd0OouyrcIbCB9zQWG4pf0yTZhaIT67nj7BY21FWJqaWrZxEh13Kt2hRbGl4MsrxsuLmvd'
);
INSERT INTO t1 VALUES (63299708,
'FJid3GaHpRC2L6jgirPm5AW3uGGgCloJ5Ww0eNHSiLWvS5bAxto23AxxR6TXr9qofeoAtxWcJsXnxzxmsdhvoekFc5mSES8tyxvsuPK5Hjs7ihtaJaLz5xEh2s1GCA'
);
INSERT INTO t1 VALUES (737703662,
'2zxutF6rOqjXYHHzSrKRwAhWCPXTdhNXYKQIRO9sEkFf1YeTGqw40Ta5u6QNfpvC1DWTTXDkFSFHtte9bbDSwgZjmryHglLhqjAKEF4MkJfT49eXcjzZNOG1F6BnsY'
);
INSERT INTO t1 VALUES (1348361729,
'i8X2EnycNH7sDHMltxcILtQE0ZPoPq9zyg24J0hiAgQNpg8jedtrWK5WtXIALR9B03FJ4ou6TCTAtWtN7fETzBzkiAmvTv6LrEZn2RtNfMaOkJfjytCp54ZfEJbb7Z'
);
INSERT INTO t1 VALUES (1804289383,
'mxvtvmC9127qJNm06sGB8R92q2j7vTiiITRDGXM9ZLzkdekbWtmXKwZ2qG1llkRw5m9DHOFilEREk3q7oce8O3BEJC0woJsm6uzFAEynLH2xCsw1KQ1lT4zg9rdxBL'
);
INSERT INTO t1 VALUES (822890675,
'97RGHZ65mNzkSrYT3zWoSbg9cNePQr1bzSk81qDgE4Oanw3rnPfGsBHSbnu1evTdFDe83ro9w4jjteQg4yoo9xHck3WNqzs54W5zEm92ikdRF48B2oz3m8gMBAl11W'
);
INSERT INTO t1 VALUES (1308044878,
'50w46i58Giekxik0cYzfA8BZBLADEg3JhzGfZDoqvQQk0Akcic7lcJInYSsf9wqin6LDC1vzJLkJXKn5onqOy04MTw1WksCYqPl2Jg2eteqOqTLfGCvE4zTZwWvgMz'
);
INSERT INTO t1 VALUES (964445884,
'DPh7kD1E6f4MMQk1ioopsoIIcoD83DD8Wu7689K6oHTAjD3Hts6lYGv8x9G0EL0k87q8G2ExJjz2o3KhnIJBbEJYFROTpO5pNvxgyBT9nSCbNO9AiKL9QYhi0x3hL9'
);
INSERT INTO t1 VALUES (1586903190,
'lwRHuWm4HE8leYmg66uGYIp6AnAr0BDd7YmuvYqCfqp9EbhKZRSymA4wx6gpHlJHI53DetH9j7Ixar90Jey5outd1ZIAJdJTjMaD7rMiqYXHFhHaB7Xr1HKuqe51GG'
);
INSERT INTO t1 VALUES (962033002,
'rfw4egILWisfxPwOc3nJx4frnAwgI539kr5EXFbupSZelM2MHqZEmD6ZNuEZzHib8fqYuHQbdrDND8lXqIdcNbAeWOBLZlpZOX5AoNlQFzpK7QjxcLP0wbWIriYGJL'
);
INSERT INTO t1 VALUES (1910858270,
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);
INSERT INTO t1 VALUES (737703662,
'2zxutF6rOqjXYHHzSrKRwAhWCPXTdhNXYKQIRO9sEkFf1YeTGqw40Ta5u6QNfpvC1DWTTXDkFSFHtte9bbDSwgZjmryHglLhqjAKEF4MkJfT49eXcjzZNOG1F6BnsY'
);
INSERT INTO t1 VALUES (100669,
'qnMdipW5KkXdTjGCh2PNzLoeR0527frpQDQ8uw67Ydk1K06uuNHtkxYBxT5w8plb2BbpzhwYBgPNYX9RmICWGkZD6fAESvhMzH3yqzMtXoH4BQNylbK1CmEIPGYlC6'
);
SELECT intcol1,charcol1 FROM t1;
INSERT INTO t1 VALUES (73673339,
'BN3152Gza4GW7atxJKACYwJqDbFynLxqc0kh30YTwgz3FktQ43XTrqJ4PQ25frn7kXhfXD8RuzN1j8Rf3y8ugKy6es3IbqPJM6ylCyD6xS7YcQCfHKZxYNvB7yTahm'
);
SELECT intcol1,charcol1 FROM t1;
INSERT INTO t1 VALUES (1759592334,
'3lkoxjtvgLu5xKHSTTtJuGE5F5QqmCcppCTmvFZScRZQgim93gSxwb24gKmIPEzEQStMjQiCu7WapGbkw4ilXch3xRLMhKSzgLDOovSi2qGj6rKvnuYAWDDJgaZDu2'
);
SELECT intcol1,charcol1 FROM t1;
INSERT INTO t1 VALUES (95275444,
'bNIrBDBl81tjzdvuOpQRCXgX37xGtzLKEXBIcE3k7xK7aFtqxC99jqYnpTviK83bf6lGDgsKd4R3KLmHPnI8TqnIKj1gjw7N2sXFZNS2Svyg8cpZN7atxL39w4igsp'
);
SELECT intcol1,charcol1 FROM t1;
INSERT INTO t1 VALUES (866596855,
'naQuzhMt1IrZIJMkbLAKBNNKKK2sCknzI5uHeGAgQuDd5SLgpN0smODyc7qorTo1QaI5qLl97qmCIzl0Mds81x7TxpIoJyqlY0iEDRNKA1PS0AKEn5NhuMAr3KgEIM'
);
SELECT intcol1,charcol1 FROM t1;
INSERT INTO t1 VALUES (364531492,
'qMa5SuKo4M5OM7ldvisSc6WK9rsG9E8sSixocHdgfa5uiiNTGFxkDJ4EAwWC2e4NL1BpAgWiFRcp1zIH6F1BayPdmwphatwnmzdwgzWnQ6SRxmcvtd6JRYwEKdvuWr'
);
DROP SCHEMA IF EXISTS `mysqlslap`;
[root@Betty libmysql]
#
|
7. 实际测试中的复杂情况。
使用 --defaults-file 选项，指定从配置文件中读取选项配置。
使用 --number-int-cols 选项，指定表中会包含 4 个 int 型的列。
使用 --number-char-cols 选项，指定表中会包含 35 个 char 型的列。
使用 --engine 选项，指定针对何种存储引擎进行测试。
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[root@Betty ~]
# mysqlslap --defaults-file=/etc/my.cnf --concurrency=50,100,200 --iterations=1 --number-int-cols=4 --number-char-cols=35 --auto-generate-sql --auto-generate-sql-add-autoincrement --auto-generate-sql-load-type=mixed --engine=myisam,innodb --number-of-queries=200 --debug-info -S /tmp/mysql.sock
Benchmark
Running
for
engine myisam
Average number of seconds to run all queries: 0.015 seconds
Minimum number of seconds to run all queries: 0.015 seconds
Maximum number of seconds to run all queries: 0.015 seconds
Number of clients running queries: 50
Average number of queries per client: 4
Benchmark
Running
for
engine myisam
Average number of seconds to run all queries: 0.024 seconds
Minimum number of seconds to run all queries: 0.024 seconds
Maximum number of seconds to run all queries: 0.024 seconds
Number of clients running queries: 100
Average number of queries per client: 2
Benchmark
Running
for
engine myisam
Average number of seconds to run all queries: 0.028 seconds
Minimum number of seconds to run all queries: 0.028 seconds
Maximum number of seconds to run all queries: 0.028 seconds
Number of clients running queries: 200
Average number of queries per client: 1
Benchmark
Running
for
engine innodb
Average number of seconds to run all queries: 0.112 seconds
Minimum number of seconds to run all queries: 0.112 seconds
Maximum number of seconds to run all queries: 0.112 seconds
Number of clients running queries: 50
Average number of queries per client: 4
Benchmark
Running
for
engine innodb
Average number of seconds to run all queries: 0.042 seconds
Minimum number of seconds to run all queries: 0.042 seconds
Maximum number of seconds to run all queries: 0.042 seconds
Number of clients running queries: 100
Average number of queries per client: 2
Benchmark
Running
for
engine innodb
Average number of seconds to run all queries: 0.105 seconds
Minimum number of seconds to run all queries: 0.105 seconds
Maximum number of seconds to run all queries: 0.105 seconds
Number of clients running queries: 200
Average number of queries per client: 1
User
time
0.05, System
time
0.06
Maximum resident
set
size 8332, Integral resident
set
size 0
Non-physical pagefaults 5388, Physical pagefaults 0, Swaps 0
Blocks
in
0 out 0, Messages
in
0 out 0, Signals 0
Voluntary context switches 7484, Involuntary context switches 2839
[root@Betty ~]
#
|
8. 使用存储过程进行测试。
略
========== 我是分割线 =============
mysqlslap 运行分三个阶段:
- 创建 schema，table 和任何用来测试的已经存储了的程序和数据。这个阶段使用单客户端连接；
- 进行负载测试。这个阶段使用多客户端连接；
- 清除（断开连接，删除指定表）。这个阶段使用单客户端连接。
例子：
a. 提供你自己的创建 SQL 语句和查询 SQL 语句，有 50 个客户端查询，每个查询 200 次（在单行上输入命令）：
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[root@Betty ~]
# mysqlslap --delimiter=";" --create="CREATE TABLE a (b int);INSERT INTO a VALUES (23)" --query="SELECT * FROM a" --concurrency=50 --iterations=200
Benchmark
Average number of seconds to run all queries: 0.005 seconds
Minimum number of seconds to run all queries: 0.003 seconds
Maximum number of seconds to run all queries: 0.007 seconds
Number of clients running queries: 50
Average number of queries per client: 1
[root@Betty ~]
#
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b. 让 mysqlslap 创建查询的 SQL 语句，使用的表有 2 个 INT 行和 3 个 VARCHAR 行。使用 5 个客户端，每一个查询 20 次！不要创建表或插入数据。(换言之，用之前测试的模式和数据):
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[root@Betty ~]
# mysqlslap --concurrency=5 --iterations=20 --number-int-cols=2 --number-char-cols=3 --auto-generate-sql
Benchmark
Average number of seconds to run all queries: 0.025 seconds
Minimum number of seconds to run all queries: 0.012 seconds
Maximum number of seconds to run all queries: 0.084 seconds
Number of clients running queries: 5
Average number of queries per client: 0
[root@Betty ~]
#
|
c. 告诉程序从指定的 create.sql 文件去加载 create，insert 和查询等 SQL 语句。该文件有多个表的 create 和insert 语句, 它们都是通过“；”分隔开的。query.sql 文件则有 多个查询语句, 分隔符也是“；”。执行所有的加载语句，然后通过查询文件执行所有的查询语句，分别在 5 个客户端上每个执行 5 次：
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[root@Betty ~]
# mysqlslap --concurrency=5 --iterations=5 --query=query.sql --create=create.sql --delimiter=";"
|
========== 我是分割线 =============
mysqlslap 对于模拟多个用户同时对 MySQL 发起“进攻”提供了方便。同时详细的提供了“高负荷攻击 MySQL”的详细数据报告。
