Windows has the same setting. It’s in the Power Options under Control Panel, and for all servers, no matter what, it should be set to High Performance.
Here’s a free T-SQL script I wrote that will check for you what the power settings are. We don’t always have desktop access to a server when we are checking diagnostics, but it’s good to know if performance problems can be addressed by a really simple fix that doesn’t require the vehicle to be at rest.
(The script also respects your settings, so if you had
xp_cmdshelldisabled, it’ll turn it off again when it’s done.)
Click through for the script.