Hi Nathan, On Thu, Jan 18, 2018 at 9:31 PM, Nathan March <nathan at gt.net> wrote: >> -----Original Message----- >> As there are now quite many options to choose from, what would be the >> best option performance wise for running 32bit domUs under xen-4.6? >> >> Best, >> Peter >> > > It's worth taking a look at the table in the latest XSA, it helps clarify a > fair bit: > > https://xenbits.xen.org/xsa/advisory-254.html thanks for pointing this out, but there is a disclaimer: "Everything in this section applies to 64-bit PV x86 guests only." It also reads in the advisory "32-bit PV guests cannot exploit SP3" So I am wondering if I just "yum update" will I get some fixes I do not need that will slow my guests down? Best, Peter