The recommendation changed with 5.5. http://blogs.vmware.com/performance/2013/09/deploying-extremely-latency-sensitive-applications-in-vmware-vsphere-5-5.html "... However, performance demands of latency-sensitive applications with very low latency requirements such as distributed in-memory data management, stock trading, and high-performance computing have long been thought to be incompatible with virtualization. vSphere 5.5 includes a new feature for setting latency sensitivity in order to support virtual machines with strict latency requirements." ----- Original Message ----- > From: "Paul Robert Marino" <[log in to unmask]> > To: "Nico Kadel-Garcia" <[log in to unmask]> > Cc: "John Lauro" <[log in to unmask]>, "Brandon Vincent" <[log in to unmask]>, "Lee Kin" > <[log in to unmask]>, "[log in to unmask]" <[log in to unmask]> > Sent: Sunday, August 24, 2014 3:27:39 PM > Subject: Re: about realtime system ... > By the way one of those stock exchanges is where the VMware engineers > told us never to use their product in production. In fact we had huge > problems with VMware in our development environments because some of > our applications would actually detect the clock instability in the > VMware clocks and would shut themselves down rather than have > inaccurate audit logs. as a result we found we had trouble even using > it in our development environments.