# Performance tuning **URL:** \ **Category:** Logstash\ **Created:** [May 29, 2018, 6:32am UTC](https://discuss.elastic.co/t/performance-tuning/133623 "2018-05-29T06:32:07Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![nickytd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nickytd/32/21746_2.png) [@nickytd](https://discuss.elastic.co/u/nickytd)\ **Post date:** [May 29, 2018, 6:32am UTC](https://discuss.elastic.co/t/performance-tuning/133623/1 "2018-05-29T06:32:07Z")
# Hi I am trying to chase a CPU utilisation on logstash and aways get "oneagentautosensor" as the hottest thread Hot threads at 2018-05-29T06:29:15Z, busiestThreads=3: 12 % of cpu usage, state: runnable, thread name: 'oneagentautosensor', thread id: 25 looking further down I got following from the jstack "oneagentautosensor" #25 daemon prio=5 os\_prio=0 tid=0x00007f5fd0000910 nid=0x28 runnable [0x0000000000000000] Do you guys know what are the tasks performed in this thread? And any clues where to look further? Thanks ---
**Author:** ![guyboertje](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/guyboertje/32/31592_2.png) [@guyboertje](https://discuss.elastic.co/u/guyboertje)\ **Post date:** [May 29, 2018, 9:19am UTC](https://discuss.elastic.co/t/performance-tuning/133623/2 "2018-05-29T09:19:33Z")
Not from Logstash. Perhaps [https://www.dynatrace.com/support/help/get-started/introduction/what-is-oneagent/?\_ga=2.51428908.46547408.1527585475-179117150.1527585475](https://www.dynatrace.com/support/help/get-started/introduction/what-is-oneagent/?_ga=2.51428908.46547408.1527585475-179117150.1527585475) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 26, 2018, 9:19am UTC](https://discuss.elastic.co/t/performance-tuning/133623/3 "2018-06-26T09:19:36Z")
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