Glad to be of assistance. I will add that, once properly configured, VM performance was very good. It was at least as good as the former dedicated hardware we were using. We aways had very high end enterprise grade hardware. All very expensive stuff ($100K for a SAN etc). VM is not a great way to save money on hardware. Where it really saves money is when you need to instantiate a new server (or 100 new servers). That can be done in minutes. And ongoing admin and support is cheaper, not to mention the benefits of built in redundancy and homogeneous security configurations.
VM is definitely the way to go for any level of enterprise systems. Tom > On Feb 21, 2020, at 04:20, Peter Jakobsson <li...@netkelvin.com> wrote: > > Hi Tom > > Many thanks for your useful observations. I’m not quite sure of the > priorities given to 4D in the VM but the support guy said he needed some kind > of IP packet specification details which 4D used to give it “full priority”. > I think that was so that other bandwidth demands (such as large file sharing > data transfers and stuff) didn’t hog the bandwidth. I wasn’t able to give him > this. > > I’ll see what he can do with CPU and RAM as you suggest. > > Thanks again ! > > Peter > >> On 19 Feb 2020, at 22:41, Tom Benedict <benedic...@comcast.net >> <mailto:benedic...@comcast.net>> wrote: >> >> >> It’s been a few years (3-4) since I had a 4D Server running a VM, but at >> that time the best way we had to optimize the hardware was to have the VM >> “Priority” for your app be set as high as possible and to dedicate CPU and >> RAM to it. VM’s are inherently ‘smart’ and will change the performance level >> of a given app based on how busy it is. If it doesn’t look like it needs RAM >> its allocation will be reduced. Likewise for CPU. And the opposite if >> resources are in demand, the VM will give you app more RAM and CPU. However, >> it takes time for a VM to react and there is overhead in moving/allocating, >> so it can effect your apps performance. We found that we needed to set the >> VM to dedicate RAM and CPU and never reduce it. I don’t recall what the >> feature was call that does the VM management. > ********************************************************************** 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 **********************************************************************
