# Xcode 16.2 performance issues while running tests

**URL:** https://discuss.bitrise.io/t/xcode-16-2-performance-issues-while-running-tests/24776
**Category:** iOS
**Created:** [December 19, 2024, 11:00am UTC](https://discuss.bitrise.io/t/xcode-16-2-performance-issues-while-running-tests/24776 "2024-12-19T11:00:30Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![marialuiza.fornagier](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@marialuiza.fornagier](https://discuss.bitrise.io/u/marialuiza.fornagier)
#### Post date: [December 19, 2024, 11:00am UTC](https://discuss.bitrise.io/t/xcode-16-2-performance-issues-while-running-tests/24776/1 "2024-12-19T11:00:31Z")

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Hi. I’m in the process of trying to update our workflows from xcode 15.4 to xcode 16.2 and i noticed that some tests take as long as twice as much to run in xcode 16.2. Is anyone else experiencing the same?

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### Author: ![andrew.dewitt](https://avatars.discourse-cdn.com/v4/letter/a/9de053/32.png) [@andrew.dewitt](https://discuss.bitrise.io/u/andrew.dewitt)
#### Post date: [March 6, 2025, 7:50pm UTC](https://discuss.bitrise.io/t/xcode-16-2-performance-issues-while-running-tests/24776/2 "2025-03-06T19:50:37Z")

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I’m experiencing something like this as well, depending on what tests you are running. I’m running systems tests. It works without obvious problems if I run 1 or 2 systems tests, anything more and I get failures with tests dependent on objects sent to it from the back-end