On 2021-07-06, Philip Guenther <[email protected]> wrote: > On Mon, Jul 5, 2021 at 3:56 PM Brian Empson <[email protected]> wrote: > ... > >> I'm running 6.5, is there any significant performance improvements in >> the newer versions of OpenBSD that would improve sendto()'s performance? >> > > Yes. > > I'll suggest that before you do any serious perf measurement or try to > "squeeze more performance out of" *any* codebase you update to a current > release and not measure a two year / four version old release. > > There are people for whom tracking performance of a set up over time is > important and for them measuring obsolete versions is useful. However, if > you have a target and are trying to figure out whether a setup can _reach_ > that target then measuring an older release tells you nothing, because you > would never deploy an out of date release. I Would Dearly Hope. > > > Philip Guenther >
Additionally, if it does become necessary to dig further into the kernel to improve things, current versions have dt(4) / btrace(8) that are likely to make it a lot easier to figure out where to spend time..
