[Observium] atime necessary?

Being a BSD and Solaris guy (ZFS for years!), I brought up my new Observium installation putting mariadb on one ZFS mirror, and Observium on another. One thing that can improve performance is by disabling the atime attribute on a filesystem. Does Observium or mysql/mariadb care about this, or can I safely disable it on either or both filesystems? It won't impact the normal timestamps, just the tracking of the last access time of individual files.

Thanks again.