> On my POWER9 Talos workstation, typical ./configure runs take longer than the builds themselves. This is because fork+exec is still a slow path on POWER. It i

> On my POWER9 Talos workstation, typical ./configure runs take longer than the builds themselves. This is because fork+exec is still a slow path on POWER. It is similar on ARM, MIPS, and many other RISC architectures. Anyone know how this (the RISC-related slowness) can be true? Larger register file? Even that seems unlikely...