Just chiming in to reiterate what t.franz has already mentioned. -T1117 and -T1118 so that tempdb behaves well with multiple data files prior to 2016. Also a big thank you to K. Taranov for the original listing of trace flags. Great list.
Thanks
Jeff Bennett
Thanks for thanks, you can contribute any time here: https://github.com/ktaranov/sqlserver-kit/pulls or create issue if find some typos.