He's measuring compilation speed. IMO the best way to speed up
compilation times (or save hardware resources) is to fix your build
system so you're not building the same thing, over and over again.
(I'm writing this as I wait for our super-slow compilation to finish.
I don't trust our build system, so I did a 'make clean' ...)
Using Git (or other modern version control tools?) helps here. It does
the Right Thing with file timestamps, so make works as intended.
Surprisingly useful.
/Jorgen
--
// Jorgen Grahn <grahn@ Oo o. . .
\X/
snipabacken.se> O o .