I've offered jails in the past (2004-2005) and currently offer Xen VPSs. Yes, Jails make more efficient use of ram and other hardware; however, Xen makes more efficient use of SysAdmin time. Now, the FreeBSD jail functionality is getting better all the time, and it's much better now than it was, but it just doesn't provide the same level of resource isolation that Xen provides.
On xen, I don't have to worry about runaway user processes. Xen deals with the problem for me. this was not the case with Jails.
So yeah. I like Jails for cooperative environments, but there is a reason why I'm selling Xen VPSs now, not FreeBSD jails, and it's not 'cause I like linux more than FreeBSD.
On xen, I don't have to worry about runaway user processes. Xen deals with the problem for me. this was not the case with Jails.
So yeah. I like Jails for cooperative environments, but there is a reason why I'm selling Xen VPSs now, not FreeBSD jails, and it's not 'cause I like linux more than FreeBSD.