PostgreSQL DBA(8) - sysbench简介

pgbench是一款开源的基准测试工具，支持多线程和多种数据库（包括MySQL、PostgreSQL等）；通过测试可衡量操作系统的CPU、磁盘IO、内存、POSIX线程性能和数据库性能。

一、安装

下载sysbench,当前最新版本是1.0.15

cd /tmp/install
wget https://github.com/akopytov/sysbench/archive/1.0.15.zip -O "sysbench-1.0.15.zip"
unzip sysbench-1.0.15.zip
cd sysbench-1.0.15

执行安装

yum install automake libtool mysql-devel postgresql-devel –y
./autogen.sh
./configure --with-pgsql --with-pgsql-includes=/appdb/atlasdb/pg11beta2/include  --with-pgsql-libs=/appdb/atlasdb/pg11beta2/lib
make
make install

安装成功

[root@localhost sysbench-1.0.15]# sysbench --version
sysbench 1.0.15

二、参数说明

通过sysbench --help命令可以查看详细的参数设置.

[root@localhost include]# sysbench --help
Usage:
  sysbench [options]... [testname] [command]

Commands implemented by most tests: prepare run cleanup help

General options:
  --threads=N                     number of threads to use [1]
...

其中:
oltp-tables-count
生成测试数据表数量

--threads=N
sysbench使用的工作线程数

--time=N
执行时长,以秒为单位

--report-interval=N
报告间隔,以秒为单位

--config-file=FILENAME
配置文件

--db-driver=STRING
数据库驱动mysql/pgsql

pgsql options:
--pgsql-host=STRING PostgreSQL server host [localhost]
--pgsql-port=N PostgreSQL server port [5432]
--pgsql-user=STRING PostgreSQL user [sbtest]
--pgsql-password=STRING PostgreSQL password []
--pgsql-db=STRING PostgreSQL database name [sbtest]

三、基本使用

连接数据库,创建测试数据库sysbench

$createdb sysbench

准备阶段
执行以下命令,sysbench执行自带的测试脚本

sysbench /usr/local/share/sysbench/tests/include/oltp_legacy/oltp.lua \
--oltp-tables-count=10 --oltp-table-size=500000 \
--db-driver=pgsql --pgsql-host=192.168.26.103 --pgsql-port=5432 \
--pgsql-user=atlasdb --pgsql-db=sysbench \
prepare

命令输出

Creating table 'sbtest1'...
Inserting 500000 records into 'sbtest1'
Creating secondary indexes on 'sbtest1'...
Creating table 'sbtest2'...
Inserting 500000 records into 'sbtest2'
Creating secondary indexes on 'sbtest2'...
Creating table 'sbtest3'...
Inserting 500000 records into 'sbtest3'
Creating secondary indexes on 'sbtest3'...
Creating table 'sbtest4'...
Inserting 500000 records into 'sbtest4'
Creating secondary indexes on 'sbtest4'...
Creating table 'sbtest5'...
Inserting 500000 records into 'sbtest5'
Creating secondary indexes on 'sbtest5'...
Creating table 'sbtest6'...
Inserting 500000 records into 'sbtest6'
Creating secondary indexes on 'sbtest6'...
Creating table 'sbtest7'...
Inserting 500000 records into 'sbtest7'
Creating secondary indexes on 'sbtest7'...
Creating table 'sbtest8'...
Inserting 500000 records into 'sbtest8'
Creating secondary indexes on 'sbtest8'...
Creating table 'sbtest9'...
Inserting 500000 records into 'sbtest9'
Creating secondary indexes on 'sbtest9'...
Creating table 'sbtest10'...
Inserting 500000 records into 'sbtest10'
Creating secondary indexes on 'sbtest10'..

运行基准测试

sysbench /usr/local/share/sysbench/tests/include/oltp_legacy/oltp.lua \
--report-interval=5 \
--threads=4 --time=120 --db-driver=pgsql --pgsql-host=192.168.26.103 --pgsql-port=5432 \
--pgsql-user=atlasdb --pgsql-db=sysbench \
run

执行完毕,4线程的执行过程和结果如下:

sysbench 1.0.15 (using bundled LuaJIT 2.1.0-beta2)

Running the test with following options:
Number of threads: 4
Report intermediate results every 5 second(s)
Initializing random number generator from current time


Initializing worker threads...

Threads started!

[ 5s ] thds: 4 tps: 107.50 qps: 2160.56 (r/w/o: 1513.97/430.79/215.80) lat (ms,95%): 51.94 err/s: 0.00 reconn/s: 0.00
[ 10s ] thds: 4 tps: 80.79 qps: 1611.00 (r/w/o: 1126.26/323.16/161.58) lat (ms,95%): 71.83 err/s: 0.00 reconn/s: 0.00
[ 15s ] thds: 4 tps: 105.45 qps: 2114.74 (r/w/o: 1482.66/421.19/210.89) lat (ms,95%): 61.08 err/s: 0.00 reconn/s: 0.00
...
[ 120s ] thds: 4 tps: 88.00 qps: 1762.33 (r/w/o: 1232.95/353.39/175.99) lat (ms,95%): 77.19 err/s: 0.00 reconn/s: 0.00
SQL statistics:
    queries performed:
        read:                            181496
        write:                           51856
        other:                           25928
        total:                           259280
    transactions:                        12964  (108.00 per sec.)
    queries:                             259280 (2160.08 per sec.)
    ignored errors:                      0      (0.00 per sec.)
    reconnects:                          0      (0.00 per sec.)

General statistics:
    total time:                          120.0312s
    total number of events:              12964

Latency (ms):
         min:                                   18.34
         avg:                                   37.02
         max:                                  122.90
         95th percentile:                       58.92
         sum:                               479962.76

Threads fairness:
    events (avg/stddev):           3241.0000/6.96
    execution time (avg/stddev):   119.9907/0.01

四、参考资料

How to Benchmark Performance of MySQL & MariaDB using SysBench
How to Benchmark PostgreSQL Performance Using Sysbench