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. If we want to optimize exec(), there would be better places to do so. But nonetheless, I'm trying to fix it un GCC without TMPDIR.
