# 100% cpu usage - when disk space is low?
**URL:** https://forum.syncthing.net/t/100-cpu-usage-when-disk-space-is-low/20284
**Category:** General
**Created:** [May 25, 2023, 5:50am UTC](https://forum.syncthing.net/t/100-cpu-usage-when-disk-space-is-low/20284 "2023-05-25T05:50:18Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@michaelblight](https://forum.syncthing.net/u/michaelblight)
#### Post date: [May 25, 2023, 5:50am UTC](https://forum.syncthing.net/t/100-cpu-usage-when-disk-space-is-low/20284/1 "2023-05-25T05:50:18Z")
Not sure if it’s useful for anyone here, but I noticed that my VM was regularly using 100% cpu. See below where the dark shading is nighttime, orange is cpu and was at 100% for over 24 hours at a time, whereas blue is RAM (4GB). I run syncthing within a docker container on this VM, and it was using all the cpu. When I went to the syncthing UI it warned that disk space was 0.4% and I confirmed the disk available to the VM was at 99.6% - my bad. I restarted syncthing and the cpu went back to normal. Then I deleted some of the Plex cache to get back 15GB. So maybe syncthing doesn’t cope well without space? I will monitor for the next couple of days.
---
### Author:  [@calmh](https://forum.syncthing.net/u/calmh)
#### Post date: [May 25, 2023, 8:42am UTC](https://forum.syncthing.net/t/100-cpu-usage-when-disk-space-is-low/20284/2 "2023-05-25T08:42:03Z")
Any logs from the affected time?
---
### Author:  [@SergioDG-YCC](https://forum.syncthing.net/u/SergioDG-YCC)
#### Post date: [May 29, 2023, 5:32am UTC](https://forum.syncthing.net/t/100-cpu-usage-when-disk-space-is-low/20284/3 "2023-05-29T05:32:34Z")
I think a great syncthing function would be a low space warning