5 Replies to “Sudden buildkernel improvements”

  1. Nobody says:

    Is the “j”-option necessary for building? For example on a 4core: make -j 4 buildkernel ?

    Because this is recommended on: https://www.dragonflybsd.org/docs/newhandbook/Upgrading/

    Or is a simple “make” sufficient to use all cores?

  2. make itself will run one make job at a time unless you tell it to run more. If there’s only one job running, it can only run on one core.

  3. Anonymous says:

    Quick, someone bore Matt more!

  4. John says:

    The “j” option is necessary for building if:
    1) you have more than 1 core
    2) you want to use more than 1 core

    Like Justin said, if you omit it, it will use only one core no matter how many you have.

  5. You pretty much always want to use -j, I would think. There’s not a lot of single-core x86 computers left.

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