Johannes Schindelin <Johannes.Schindelin@xxxxxx> wrote: > I know you are a fan of testing things thoroughly in the test suite, but I > have to say that it is getting out of hand, in particular due to our > over-use of shell script idioms (which really only run fast on Linux, not > a good idea for a portable software). How much effort would it take to optimize a /bin/sh? Would replacing uses of fork+execve posix_spawn be fast and portable enough? Even on Linux, performance sucks for me. I've been hoping dash can use posix_spawn (or using vfork directly) to see if that can help things. That won't help with subshells, though... (I'm back to using a Centrino laptop from 2005)