On Thu, Mar 26, 2020 at 06:07:54PM +0100, Kamil Rytarowski wrote: > On 26.03.2020 17:49, Robert Elz wrote: > > Date: Thu, 26 Mar 2020 16:28:18 +0100 > > From: Kamil Rytarowski <n...@gmx.com> > > Message-ID: <84460ebb-b4bf-f3ee-e51b-e27d0b6e2...@gmx.com> > > > > > > | That is negligible cost of getting TMPDIR propagated to most programs. > > > > Sure, it isn't much, for one program, but when you're running tens of > > thousands, it all adds up. > > > > It's still negligible for hundreds of millions calls. > > Modern CPUs like Ryzen Threadripper 3990X can execute that extra amount > of instructions (around 600) in a single clock cycle.
NetBSD-current would probably take longer to build on that AMD chip, than Research Unix took to build on a PDP-11/70 in the late 1970s. It still counts. https://www.bell-labs.com/usr/dmr/www/retro.pdf Andrew