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 = 5 run

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 use

Shell

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

( 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。