3 ms·

How much effective parallelism do you get out of them?

• rwmj 7y ago
  I didn't specifically measure that, but most builds are limited by Amdahl's law (./configure kills you) and there will rarely be 256 compiles that can happen in parallel at any one time.
  • imtringued 7y ago
    May you be blessed with incremental builds. Linking is also a big culprit.
    • rwmj 7y ago
      For interactive development work sure, but Red Hat builds distros and package builds are done from scratch. I agree about linking. Also Fedora (and therefore RHEL 9) is about to move to LTO which makes everything much worse.
      • koheripbal 7y ago
        I wonder if they'd be good for my RDS servers...
  • suedpfalz 7y ago
    I use OpenEmbedded/Yocto to build embedded firmware and have no problem to run 256 compiles in parallel.