# sysbench oltp test， the result is not stable after warmup, why?

**URL:** <https://forums.percona.com/t/sysbench-oltp-test-the-result-is-not-stable-after-warmup-why/6093>\
**Category:** Percona Server for MySQL 5.6\
**Created:** [January 1, 2018, 8:54pm UTC](https://forums.percona.com/t/sysbench-oltp-test-the-result-is-not-stable-after-warmup-why/6093 "2018-01-01T20:54:10Z")\
**Posts on this page:** 1\
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**Author:** ![vadimtk](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/vadimtk/32/9528_2.png) [@vadimtk](https://forums.percona.com/u/vadimtk)\
**Post date:** [January 2, 2018, 11:17am UTC](https://forums.percona.com/t/sysbench-oltp-test-the-result-is-not-stable-after-warmup-why/6093/2 "2018-01-02T11:17:25Z")

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512 threads are very heavy workload for MySQL.  
While it is possible to get stable result, it will require a special tuning.  
Can you try your experiment with 40 threads to see how it works?

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