gcc/doc/install/building/building-in-parallel.rst

   1 ..
   2   Copyright 1988-2022 Free Software Foundation, Inc.
   3   This is part of the GCC manual.
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   6 Building in parallel
   7 ********************
   8
   9 GNU Make 3.80 and above, which is necessary to build GCC, support
  10 building in parallel.  To activate this, you can use :samp:`make -j 2`
  11 instead of :samp:`make`.  You can also specify a bigger number, and
  12 in most cases using a value greater than the number of processors in
  13 your machine will result in fewer and shorter I/O latency hits, thus
  14 improving overall throughput; this is especially true for slow drives
  15 and network filesystems.