Sysbench with support of multi-tables workload

本文转载自：http://www.mysqlperformanceblog.com/2011/04/29/sysbench-with-support-of-multi-tables-workload/

We just pushed to sysbench support for workload against multiple tables ( traditionally it used only single table).

It is available from launchpad source tree

lp:sysbench

.

This is set of LUA scripts for sysbench 0.5 ( it supports scripting), and it works following way:

- you should use

--test=tests/db/oltp.lua

to run OLTP test

i.e. prepare

Shell

1	./sysbench --test=tests/db/oltp.lua --oltp-tables-count=25 prepare

run:Shell

1	./sysbench--test=tests/db/oltp.lua--oltp-tables-count=25--num-threads=5run

oltp.lua

should understand most options that available for regular sysbench –test=oltp

there are couple other scripts, like

oltp_simple

select

insert

delete

update_index

update_non_index

to support different OLTP modes.

Most interesting: all scripts support

--oltp-tables-count=N

( default 1), in this case N sbtest tables will be used.

Additional parameter

--oltp-secondary

is taken from Mark Callaghan’s sysbench tree , in this case

table sbtest will be created with

KEY xid (ID)

, instead of

PRIMARY KEY (ID)

Now, as we have N tables, we may want to prepare them in parallel, to save some time for preparation

I implemented that in script

parallel_prepare.lua

so instead of

Shell

1	./sysbench --test=tests/db/oltp.lua --oltp-tables-count=25 prepare

you may useShell

1	./sysbench--test=tests/db/parallel_prepare.lua--oltp-tables-count=64--num-threads=8run

( please note that oltp-tables-count should be multiplier of num-threads)

注：近期参加MySQL运维学习，老师推荐该文章作为学习和技术提高的扩展阅读，先记录到自己的博客中，随后慢慢消化、学习、提高。本文与MySQL数据库 “压力测试”主题有关。