This issue seems to be that you are doing it on an encrypted filesystem. The kernel obviously has to perform a lot of IO intermixed with computational overhead to do this.
I don't know if the performance problem is expected or not. It all depends on what encryption method you are using, etc.
This issue seems to be that you are doing it on an encrypted filesystem. The kernel obviously has to perform a lot of IO intermixed with computational overhead to do this.
I don't know if the performance problem is expected or not. It all depends on what encryption method you are using, etc.