On Wed, 07 Aug 2019 17:12:20 +0200 deloptes <delop...@gmail.com> wrote:
> Michael Stone wrote: > > > Newer server hardware is much more power efficient and will draw very > > little power when idle. This is one of the drawbacks to saving money by > > using old hardware. (You can still use old hardware, just be sure it's > > new enough that it's from the era when power efficiency became a thing.) > > I am not sure who you are answering to. I recently looked at HP DL360 and > DL380 Gen10. Yes indeed they are more power efficient compared to Gen9 in > terms they provide more calculation cycles for the same power, but this can > not be compared to a PC. This sort of stuff is discussed endlessly on the homelab subreddit, but for some personal data points: I run Debian on a Dell R210 II, with 1 CPU with 4 cores / 8 threads and 16GB of RAM, and a single HDD: the thing idles at about 23 watts. A Windows 10 VM (KVM / libvirt) adds about 5-7 watts, but a Debian Sid VM adds nothing. [Of course, the Debian VM is a fairly minimal thing, with under 400 packages installed, while the Windows installation is a pretty standard one.] Celejar