Peter, I had a discussion with Tim Nevels on another channel about this last week too. He's a big fan and maybe will weigh in here. I will not miss having to make a trip to the colo to change an SSD that died. (Hint: mirrored SSDs so you don't have to do that in the middle of the night.) It is kind of interesting that we are moving back to the topology the industry started with - what's the difference between a 'main frame computer' and 'cloud computing'?
On Thu, Oct 10, 2019 at 8:23 AM Peter Jakobsson via 4D_Tech < 4d_tech@lists.4d.com> wrote: > Thanks for your post Kirk. > > The guy I spoke to seemed to have it the other way around - the VM’s had > 4-12 cores and the “metal” about 32. > > He also was of the categorical opinion that the only way to really keep > applications “isolated” from each other (i.e. not bring everything else > down when they crashed) was to give each mission critical application or > service its own VM. > > When I put to him “what about the natural O/S level multi-threading” he > felt there were too many vulnerabilities and mentioned especially the > “crypto viruses” and the Intel multi-threading bug. His approach was > basically - if your VM needs ore resources then we can simply allocated > more. He wasn’t really bothered by the idea of applications that were > multi-threaded internally because it’s all the one big bucket and if > something inside the bucket needs more power then just make the bucket > bigger. > > Peter > > > > On 10 Oct 2019, at 16:09, Kirk Brooks via 4D_Tech <4d_tech@lists.4d.com> > > wrote: > > > > The other thing about VM vs metal is the whole pre-emptive process > > benefit basically goes away. Thomas Maul has shown this at the Summit. > > Having n+ virtual cores doesn't do anything to actually increase > processing > > speed because the VM is running on whatever is allocated to it. > > Theoretically you could have a VM with 4 cores running an instance with > 32 > > cores > > ********************************************************************** > 4D Internet Users Group (4D iNUG) > Archive: http://lists.4d.com/archives.html > Options: https://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:4d_tech-unsubscr...@lists.4d.com > ********************************************************************** -- Kirk Brooks San Francisco, CA ======================= What can be said, can be said clearly, and what you can’t say, you should shut up about *Wittgenstein and the Computer * ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
