# Tag Value Change Scripts: Are They Run Asynchronously?

**URL:** <https://forum.inductiveautomation.com/t/tag-value-change-scripts-are-they-run-asynchronously/53749>\
**Category:** Ignition\
**Tags:** ignition79, ignition81\
**Created:** [December 3, 2021, 7:12pm UTC](https://forum.inductiveautomation.com/t/tag-value-change-scripts-are-they-run-asynchronously/53749 "2021-12-03T19:12:57Z")\
**Posts on this page:** 1\
**Showing post:** 16

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [December 3, 2021, 10:27pm UTC](https://forum.inductiveautomation.com/t/tag-value-change-scripts-are-they-run-asynchronously/53749/16 "2021-12-03T22:27:24Z")

</div>

> [@lrose](#):
>
> each event gets it’s own thread

If you choose that option. Otherwise it is a shared thread pool. I don't recall the pool quantities, but more generous than tag events. Also does not discard after 5 queued per tag.

---

_[View the full topic](https://forum.inductiveautomation.com/t/tag-value-change-scripts-are-they-run-asynchronously/53749)._