Introduction to sysbench Basics

sysbench It's an open source 、 Modular 、 Cross platform multithreading performance testing tool , It can be used for CPU、 Memory 、 disk I/O、 Threads 、 Database performance test .

sysbench It can be used for the following benchmarks ：

• CPU performance

• disk IO performance

• Mobilize program performance

• Memory allocation and transmission speed

• POSIX Thread performance

• Database performance

At present, there are MySQL、Oracle and PostgreSQL. With MySQL Database, for example .

Installation instructions

https://link.zhihu.com/?target=https%3A//www.cnblogs.com/pdlife/p/6698957.html

Instructions

test fileio

sysbench --test=fileio help

 Parameters, ：

--file-num=N           Represents the number of test files generated , The default is 128.

--file-block-size=N       The size of the file block used in the test , If you want a disk for innodb Storage engine for testing , You can set it to 16384, namely innodb Storage engine page size . The default is 16384.

--file-total-size=SIZE      Create the total size of the test file , The default is 2G size .

--file-test-mode=STRING  File test mode , contain ：seqwr( Sequential writing ), seqrewr( Sequential reading and writing ), seqrd( Sequential reading ), rndrd( random block read ), rndwr( Write at random ), rndrw( Random, speaking, reading and writing ).

--file-io-mode=STRING    The mode of file operation ,sync（ Sync ）,async（ asynchronous ）,fastmmap（ Fast mmap）,slowmmap（ Slow down mmap）, The default is sync Synchronous mode .

--file-async-backlog=N    The number of asynchronous operations per thread queue , The default is 128.

--file-extra-flags=STRING  Options for opening a file , This is the API Related parameters .

--file-fsync-freq=N       perform fsync() The frequency of the function .fsync It's mainly about synchronizing disk files , Because there may be a relationship between the system and the disk buffer . 0 Does not use fsync function . The default value is 100.

--file-fsync-all=[on|off]   After each write operation , Just do it once fsync. The default is off.

--file-fsync-end=[on|off]  Execute... At the end of the test fsync function . The default is on.

--file-fsync-mode=STRING Selection of file synchronization function , The same is and API Related parameters , Due to multiple operating systems for fdatasync Support for different , Therefore, it is not recommended to use fdatasync. The default is fsync.

--file-merged-requests=N  Most of the time , It's possible to merge IO Number of requests for , The default is 0.

--file-rw-ratio=N          Read / write ratio at test time , The default is 1.5, that will do 3：2

test CPU

sysbench --test=cpu help

 Parameters, ：

  --cpu-max-prime=N       Used to specify the maximum number of primes , The specific parameters can be determined according to CPU Performance to set , The default is 10000

test memory

sysbench --test=memory help

 Parameters, ：

  --memory-block-size=SIZE       Test the size of the memory block , The default is 1K

  --memory-total-size=SIZE        The total size of the data transfer , The default is 100G

  --memory-scope=STRING        The scope of memory access , Including global and local scope , The default is global

  --memory-hugetlb=[on|off]      Whether from HugeTLB Switch for pool allocation memory , The default is off

  --memory-oper=STRING         The type of memory operation , Include read, write, none, The default is write

  --memory-access-mode=STRING  Memory access mode , Include seq,rnd Two modes , The default is seq

test threads

sysbench --test-threads help

 Parameters, ： 

  --thread-yields=N       Specify the pressure for each request , The default is 1000

  --thread-locks=N        Specify the number of locks per thread , The default is 8

test mutex

sysbench --test=mutex help

 Parameters, ：

  --mutex-num=N     The total size of array mutexes . The default is 4096

  --mutex-locks=N     Number of mutexes per thread . The default is 50000

  --mutex-loops=N     The number of empty loops of the internal mutex . The default is 10000

test otlp

sysbench --test=otlp help

 Parameters, ：

  --oltp-test-mode=STRING     Execution mode {simple,complex(advanced transactional),nontrx(non-transactional),sp}. The default is complex

  --oltp-reconnect-mode=STRING  Reconnect mode {session( Do not use reconnection . Each thread is disconnected only at the end of the test ),transaction( Reconnect after each transaction ),query( At every SQL Reconnect after statement execution ),random( For each transaction, select the above reconnection mode randomly )}. The default is session

  --oltp-sp-name=STRING    The name of the stored procedure . The default is empty. 

  --oltp-read-only=[on|off]   read only mode .Update,delete,insert Statement is not executable . The default is off

  --oltp-skip-trx=[on|off]    Omit begin/commit sentence . The default is off

  --oltp-range-size=N       Query range . The default is 100

  --oltp-point-selects=N          number of point selects [10]

  --oltp-simple-ranges=N          number of simple ranges [1]

  --oltp-sum-ranges=N             number of sum ranges [1]

  --oltp-order-ranges=N           number of ordered ranges [1]

  --oltp-distinct-ranges=N        number of distinct ranges [1]

  --oltp-index-updates=N          number of index update [1]

  --oltp-non-index-updates=N      number of non-index updates [1]

  --oltp-nontrx-mode=STRING    Query type for non transactional execution mode {select, update_key, update_nokey, insert, delete} [select]

  --oltp-auto-inc=[on|off]      AUTO_INCREMENT Open or not . The default is on

  --oltp-connect-delay=N      How many microseconds to connect to the database . The default is 10000

  --oltp-user-delay-min=N     Minimum waiting time per request . The unit is ms. The default is 0

  --oltp-user-delay-max=N     Maximum waiting time per request . The unit is ms. The default is 0

  --oltp-table-name=STRING   The table name used in the test . The default is sbtest

  --oltp-table-size=N          The number of records in the test table . The default is 10000

  --oltp-dist-type=STRING     Random number of distribution {uniform( Uniform distribution ),Gaussian( Gaussian distribution ),special( The spatial distribution )}. The default is special

  --oltp-dist-iter=N     The number of iterations of the production number . The default is 12

  --oltp-dist-pct=N     The percentage of the value is treated as 'special' (for special distribution). The default is 1

  --oltp-dist-res=N    ‘special’ The percentage of . The default is 75

Yes MySQL transactional OLTP Test of ：

about MySQL Of OLTP test , and File equally , Also need to experience prepare,run,cleanup Three stages .

• prepare Preparation stage

prepare Stage will generate a table with a specified number of rows in the database , Default table in sbtest Under the architecture , Table, sbtest(sysbench The default storage engine for generating tables is innodb), For example, create a 8000 Ten thousand records ：

[[email protected] sysbench]# sysbench --test=oltp --oltp-table-size=80000000 --db-driver=mysql --mysql-socket=/data/mysqlsoft3307/mysql.sock --mysql-user=dba_manager  --mysql-password='111111' --mysql-db=test prepare


sysbench 0.4.12:  multi-threaded system evaluation benchmark

Creating table 'sbtest'...

Creating 10 records in table 'sbtest'...

• run Run the test

 Next, the table generated above is  oltp  Test of ：

[[email protected] sysbench]# sysbench --test=oltp --oltp-table-size=80000000 --oltp-read-only=off --init-rng=on --num-threads=16 
--max-requests=0 --oltp-dist-type=uniform --max-time=3600 --mysql-user=dba_manager  --mysql-password='111111' --db-driver=mysql 
--mysql-socket=/data/mysqlsoft3307/mysql.sock run > result.log

 Parameter description ：
 --max-time=3600  The specified test duration is 1 Hours 
 --mysql-db=test  Specify the database name of the test 

[[email protected] sysbench]# cat  result.log 

sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:

Number of threads: 16

Initializing random number generator from timer.

Doing OLTP test.

Running mixed OLTP test

Using Uniform distribution

Using "BEGIN" for starting transactions

Using auto_inc on the id column

Threads started!

Time limit exceeded, exiting...

(last message repeated 15 times)

Done.

OLTP test statistics:

    queries performed:

        read:                            137346874

        write:                           49052449

        other:                           19620980

        total:                           206020303

    transactions:                        9810489 (2725.13 per sec.)

    deadlocks:                           2      (0.00 per sec.)

    read/write requests:                 186399323 (51777.50 per sec.)

    other operations:                    19620980 (5450.26 per sec.)


Test execution summary:

    total time:                          3600.0060s

    total number of events:              9810489

    total time taken by event execution: 57542.1464

    per-request statistics:

         min:                                  3.00ms

         avg:                                  5.87ms

         max:                                212.09ms

         approx.  95 percentile:               8.44ms

Threads fairness:

    events (avg/stddev):           613155.5625/1486.47

    execution time (avg/stddev):   3596.3842/0.01

transactions The criteria representing the test results are TPS.
 The above test result is  2725.13 per sec.