Mysql database performance testing tool recommendation

One .sysbench How to use

Listed below sysbench Test the database mysql Common options for .

[[email protected] ~]# sysbench --help
Usage:
  sysbench [options]... [test_lua] [lua_options] [command]

Commands implemented by most tests: prepare run cleanup help

 General options ： The values in the following brackets represent the default values 
  --threads=N                      Specified number of threads [1]
  --events=N                       Limit the maximum number of requests ,0 Means unrestricted [0]
  --time=N                         Limit the maximum execution time ,0 Means unrestricted [10]
                    --events and --time Choose one of them 
  --forced-shutdown=STRING         How long do I have to wait to close after the maximum execution time is reached sysbench
                                  off Indicates that the function is disabled [off]
  --thread-stack-size=SIZE         The amount of stack space used by each thread [64K]
  --rate=N                         Average transaction rate ,0 Means unrestricted [0]
  --report-interval=N              Report the results every few seconds ,0 Indicates that interval reporting is disabled [0]
  --config-file=FILENAME           Read command line options from file 
  --tx-rate=N                      obsolete , yes --rate Another name for [0]
  --max-requests=N                 obsolete , yes --events Another name for [0]
  --max-time=N                     obsolete , yes --time Another name for [0]
  --num-threads=N                  obsolete , yes --threads Another name for [1]
  --db-ps-mode=STRING              Whether to use prepare Pattern statements  {auto, disable} [auto]

mysql Related options ：
  --mysql-host=[LIST,...]          MySQL server host [localhost]
  --mysql-port=[LIST,...]          MySQL server port [3306]
  --mysql-socket=[LIST,...]        MySQL socket
  --mysql-user=STRING              MySQL user [sbtest]
  --mysql-password=STRING          MySQL password []
  --mysql-db=STRING                MySQL database name [sbtest]
  --mysql-ignore-errors=[LIST,...]  Error codes to ignore , The value can be "all" [1213,1020,1205]

Compiled-in tests:
  fileio - File I/O test
  cpu - CPU performance test
  memory - Memory functions speed test
  threads - Threads subsystem performance test
  mutex - Mutex performance test

among ,command Some have 4 class ：prepare run cleanup and help：

• prepare： Commands for preparing data . for example , stay sysbench Pressure test Before , You need to prepare the test library first 、 Test table and data in the test table . See the following text for specific usage .

• run： Means to conduct a pressure test .

• cleanup： Clear the data generated during the test .

• help： Output given lua Help for scripts .

test_lua Is what you want to use lua Script , If it is rpm Packages installed sysbench, Then these scripts are /usr/share/sysbench Under the table of contents . For general database testing , Just use and oltp Relevant lua Script is enough .

options and lua_options Is different ,options yes sysbench The option to ,lua_options yes lua Script options ,lua_options It should be placed in test_lua Behind ( Non essential , But the advice ).

for example , To see oltp_common.lua Usage of , Sure ：

sysbench /usr/share/sysbench/oltp_common.lua help

Two . Prepare test data

First create sysbench Required database sbtest( This is a sysbench Default library name , You must create a test library ).

mysqladmin -h127.0.0.1 -uroot [email protected]! -P3306 create sbtest;

then , Prepare the table for the test , These test tables are in the test library sbtest in . the lua The script is /usr/share/sysbench/oltp_common.lua.

sysbench --mysql-host=127.0.0.1 \
         --mysql-port=3306 \
         --mysql-user=root \
         [email protected]! \
         /usr/share/sysbench/oltp_common.lua \
         --tables=10 \
         --table_size=100000 \
         prepare

among --tables=10 Representation creation 10 A test table ,--table_size=100000 Means insert... In each table 10W Row data ,prepare It means that this is the process of preparing numbers .

mysql> show tables from sbtest;
+------------------+
| Tables_in_sbtest |
+------------------+
| sbtest1          |
| sbtest10         |
| sbtest2          |
| sbtest3          |
| sbtest4          |
| sbtest5          |
| sbtest6          |
| sbtest7          |
| sbtest8          |
| sbtest9          |
+------------------+

mysql> select count(*) from sbtest.sbtest1;
+----------+
| count(*) |
+----------+
|   100000 |
+----------+

If you want to clear this 10 Tables , You can use cleanup command .

sysbench --mysql-host=127.0.0.1 \
         --mysql-port=3306 \
         --mysql-user=root \
         [email protected]! \
         /usr/share/sysbench/oltp_common.lua \
         --tables=10 \
         cleanup

3、 ... and . Database test and result analysis

Attention should be paid to the lua The script is oltp_common.lua, It is a generic script , By others lua The script calls , Can't test directly .

So here we use oltp_read_write.lua Script to do reading 、 Write tests . There are many other types of tests , For example, read-only test 、 Write only tests 、 Delete the test 、 Mass insert testing and so on . You can find the corresponding lua The script can be called .

sysbench --threads=4 \
         --time=20 \
         --report-interval=5 \
         --mysql-host=127.0.0.1 \
         --mysql-port=3306 \
         --mysql-user=root \
         [email protected]! \
         /usr/share/sysbench/oltp_read_write.lua \
         --tables=10 \
         --table_size=100000 \
         run

The following is the result of the test ：

Initializing worker threads...

Threads started!

[ 5s ] thds: 4 tps: 130.16 qps: 2606.30 (r/w/o: 1824.51/520.66/261.13) lat (ms,95%): 104.84 err/s: 0.00 reconn/s: 0.00
[ 10s ] thds: 4 tps: 126.74 qps: 2539.17 (r/w/o: 1778.17/507.52/253.47) lat (ms,95%): 108.68 err/s: 0.00 reconn/s: 0.00
[ 15s ] thds: 4 tps: 136.54 qps: 2736.34 (r/w/o: 1915.25/548.01/273.07) lat (ms,95%): 102.97 err/s: 0.00 reconn/s: 0.00
[ 20s ] thds: 4 tps: 107.44 qps: 2148.65 (r/w/o: 1505.60/428.17/214.89) lat (ms,95%): 132.49 err/s: 0.00 reconn/s: 0.00

SQL statistics:
    queries performed:
        read:          35098   #  Number of read operations performed 
        write:         10028   #  Number of write operations performed 
        other:         5014    #  Number of other operations performed 
        total:         50140
    transactions:      2507   (124.29 per sec.)    #  Average rate of transaction execution 
    queries:           50140  (2485.82 per sec.)   #  How many queries can be executed per second on average 
    ignored errors:    0      (0.00 per sec.)
    reconnects:        0      (0.00 per sec.)

General statistics:
    total time:                  20.1694s     #  Total time consumed 
    total number of events:      2507         #  Total number of requests ( read 、 Write 、 Other )

Latency (ms):
         min:                            2.32
         avg:                           32.13
         max:                          575.78
         95th percentile:              118.92    #  Average delay of sampling calculation 
         sum:                        80554.96

Threads fairness:
    events (avg/stddev):           626.7500/2.49
    execution time (avg/stddev):   20.1387/0.04

Four .cpu/io/ Memory and other tests

sysbench Built in several test indicators

Compiled-in tests:
  fileio - File I/O test
  cpu - CPU performance test
  memory - Memory functions speed test
  threads - Threads subsystem performance test
  mutex - Mutex performance test

Directly help Output test method . for example ,fileio test .

[[email protected] ~]# sysbench fileio help
sysbench 1.0.15 (using bundled LuaJIT 2.1.0-beta2)

fileio options:
  --file-num=N                  number of files to create [128]
  --file-block-size=N           block size to use in all IO operations [16384]
  --file-total-size=SIZE        total size of files to create [2G]
  --file-test-mode=STRING       test mode {seqwr, seqrewr, seqrd, rndrd, rndwr, rndrw}
  --file-io-mode=STRING         file operations mode {sync,async,mmap} [sync]
  --file-async-backlog=N        number of asynchronous operatons to queue per thread [128]
  --file-extra-flags=[LIST,...] list of additional flags to use to open files {sync,dsync,direct} []
  --file-fsync-freq=N           do fsync() after this number of requests (0 - don't use fsync()) [100]
  --file-fsync-all[=on|off]     do fsync() after each write operation [off]
  --file-fsync-end[=on|off]     do fsync() at the end of test [on]
  --file-fsync-mode=STRING      which method to use for synchronization {fsync, fdatasync} [fsync]
  --file-merged-requests=N      merge at most this number of IO requests if possible (0 - don't merge) [0]
  --file-rw-ratio=N             reads/writes ratio for combined test [1.5]

for example , establish 5 File , in total 1G, Each file is about 200M.

sysbench fileio --file-num=5 --file-total-size=1G prepare

[[email protected] ~]# ls -lh test*
-rw------- 1 root root 205M Jul  8 12:15 test_file.0
-rw------- 1 root root 205M Jul  8 12:15 test_file.1
-rw------- 1 root root 205M Jul  8 12:15 test_file.2
-rw------- 1 root root 205M Jul  8 12:15 test_file.3
-rw------- 1 root root 205M Jul  8 12:15 test_file.4

then , Run the test .

sysbench --events=5000 \
         --threads=16 \
         fileio \
         --file-num=5 \
         --file-total-size=1G \
         --file-test-mode=rndrw \
         --file-fsync-freq=0 \
         --file-block-size=16384 \
         run

result ： Test and analysis

File operations:
    reads/s:                      98.67
    writes/s:                     66.85
    fsyncs/s:                     6.26

Throughput:     #  throughput 
    read, MiB/s:                  1.54  #  Indicates the read bandwidth 
    written, MiB/s:               1.04  #  Indicates the read bandwidth 

General statistics:
    total time:                   12.7426s
    total number of events:       2117

Latency (ms):
         min:                          0.00
         avg:                         86.66
         max:                       2919.41
         95th percentile:            646.19
         sum:                     183460.80

Threads fairness:
    events (avg/stddev):          132.3125/24.19
    execution time (avg/stddev):  11.4663/1.09

Compare again cpu Performance testing ：

[[email protected] ~]# sysbench cpu --threads=40 --events=10000 --cpu-max-prime=20000 run
sysbench 1.0.15 (using bundled LuaJIT 2.1.0-beta2)

Running the test with following options:
Number of threads: 40
Initializing random number generator from current time

Prime numbers limit: 20000

Initializing worker threads...

Threads started!

CPU speed:
    events per second:  2127.81

General statistics:
    total time:                          4.6986s
    total number of events:              10000

Latency (ms):
         min:                                    1.72
         avg:                                   18.16
         max:                                  302.17
         95th percentile:                      110.66
         sum:                               181628.49

Threads fairness:
    events (avg/stddev):           250.0000/30.81
    execution time (avg/stddev):   4.5407/0.10