Hi, On 2019-01-20 10:15:53 -0500, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > HPPA doesn't hardware instructions for atomic ops other than > > test-and-set IIRC. > > Indeed, the main reason why I'm interested in keeping this old dinosaur > going at all is that it is so different from other platforms in terms > of what we can assume about spinlocks and atomic ops. Keeps us honest.
FWIW, while that clearly is the policy right now, I quite doubt that it's beneficial. It's not like there's going to be new hardware platforms without at least cmpxchg / ll/sc support. So I'm not seeing what not requiring them keeps us honest about. Greetings, Andres Freund
