Trading off safety and performance in the kernel

Let's integrate by parts: "almost all of the devices sold these days" do not support S3, since currently the only non-negliglible architecture where S3 is supported is x86, and x86 is clearly a minority of "all devices sold these days", which includes ARM smartphones and tables, µC and other embedded devices.

The other part, "a huge amount of all 2015 laptops" do not support S3, is what should be apparent from the link I sent. The Microsoft logo requirements for Windows 8 laptops/tablets/hybrids recommend Connected Standby support. When Connected Standby support is present, the firmware _must disable_ S3 support; this is a Microsoft logo _requirement_ ( e.g. http://www.anandtech.com/show/8038/windows-81-x64-connect... ) and therefore every system out there which supports Connected Standby and Windows 8 _does not support S3_.

In 2014 the first systems with that started to ship (hybrids -- including the Surface Pro, the Dell Venue Pros, last Sony Vaios, the new Helix, etc.). _All_ hybrids and tablets from 2014 already shipped with Connected Standby, but only a few laptops. If you know of any hybrid/tablet that shipped in late 2014 without CS/AOAC please let me know.

Now it's 2015, and, even within laptops, it's hard to find a system not shipping with connected standby. The Dell XPS, the new Yoga and LaVie ThinkPads, the Asus Zenbooks all ship with Connected Standby.

However, it is a fact that there are some laptops left without Connected Standby, which (supposedly) still support S3. Which is why I said "a huge amount of all 2015 laptops", and not "all of 2015 laptops". Two examples: the Thinkpad X250 and the HP Spectre x360 do not support CS, to be best of my knowledge.

Hope this explains it.