Need suggestion for open source tools to simulate I/O delay for files in a directory on ubuntu-20.04. So lets say I create a directory /delay_dir, then any process trying to read/write to files under /delay_dir should experience specified delay. Lets say I specify 2 seconds, then any process reading/writing to a file should get 2 second delay only for the files under /delay_dir.

I tried using scylladb/charybdefs by cloning https://github.com/scylladb/charybdefs but it works fine only for ubuntu-18 and centos-7 and centos-8. I want to run it for ubuntu-20.04, ubuntu-22.04. Any other tool easy to use would be appreciated too.

1 Answer 1


One solution I see is setting up a VM to that hosts a shared drive via samba or similar and then limit then bandwidth.

Dedicated tools are:

but they are not simpler to use per

  • I tried using fio but it didn't work. Will try others too. Thanks Commented Jun 12, 2023 at 14:49

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.