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
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./sysbench --test=tests/db/oltp.lua --oltp-tables-count=25 prepare |
run:
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./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
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./sysbench --test=tests/db/oltp.lua --oltp-tables-count=25 prepare |
you may use
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./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)
