# Radiomics feature extraction is very slow. 

**URL:** https://discourse.slicer.org/t/radiomics-feature-extraction-is-very-slow/11658
**Category:** Support
**Created:** [May 21, 2020, 6:59pm UTC](https://discourse.slicer.org/t/radiomics-feature-extraction-is-very-slow/11658 "2020-05-21T18:59:13Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Ankush\_Jajodia](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ankush_jajodia/32/6915_2.png) [@Ankush\_Jajodia](https://discourse.slicer.org/u/Ankush_Jajodia)
#### Post date: [May 21, 2020, 6:59pm UTC](https://discourse.slicer.org/t/radiomics-feature-extraction-is-very-slow/11658/1 "2020-05-21T18:59:14Z")

</div>

Operating system:mac  
Slicer version:4.10.2  
Expected behavior: After segmentation the radiomic feature extraction is taking unusually long… sometimes even 32 hours for a single study .  
Actual behavior: In the past it took less than 20 mins for the same for similar study .

---

<div class="post-metadata">

### Author: ![JE-Jimenez](https://avatars.discourse-cdn.com/v4/letter/j/73ab20/32.png) [@JE-Jimenez](https://discourse.slicer.org/u/JE-Jimenez)
#### Post date: [July 21, 2020, 4:47am UTC](https://discourse.slicer.org/t/radiomics-feature-extraction-is-very-slow/11658/2 "2020-07-21T04:47:11Z")

</div>

I’m having the same issue. It doesn’t seem that the CPU is working hard at all.