http://www.theregister.co.uk/2018/01...u_design_flaw/

PostgreSQL SELECT 1 with the KPTI workaround for Intel CPU vulnerability https://t.co/N9gSvML2Fo

Best case: 17% slowdown
Worst case: 23%

— The Register (@TheRegister) January 2, 2018
This is a huge deal, especially for services like AWS.

Time to re-run the benchmark comparisons with AMD, once the flawed intel "cheating" has been fixed.