+ config PKG_BUILD_PARALLEL
+ bool
+ prompt "Compile certain packages parallelized"
+ default n
+ help
+ This adds a -jX option to certain packages that are known to
+ behave well for parallel build.
+
+ Note that this may overcommit CPU resources depending on the
+ -j level of the main make process, the number of package
+ submake jobs selected below and the number of actual CPUs present.
+ Example: If the main make is passed a -j4 and the submake -j
+ is also set to 4, we may end up with 16 parallel make processes
+ in the worst case.
+
+ You get maximum build performance, if you set the package build
+ jobs to the number of CPUs (cores) available and also start the main
+ make process with -jX, where X is the number of CPUs (cores).
+ However, make sure you have enough RAM available for
+ NR_CPUS to the power of two (NR_CPUS^2) make jobs.
+
+ If you are unsure, select N.
+
+ config PKG_BUILD_JOBS
+ int
+ prompt "Number of package submake jobs (2-512)"
+ range 2 512
+ default 2
+ depends on PKG_BUILD_PARALLEL
+ help
+ The number of jobs (-jX) to pass to packages submake.
+
+ config PKG_DEFAULT_PARALLEL
+ bool
+ prompt "Parallelize the default package build rule (May break build)"
+ depends on PKG_BUILD_PARALLEL
+ default n
+ help
+ Always set the default package build rules to parallel build.
+
+ WARNING: This may break build or kill your cat, as it builds
+ packages with multiple jobs that are probably not tested in
+ a parallel build environment.
+
+ Only say Y, if you don't mind fixing broken packages.
+ Before reporting build bugs, set this to N and re-run the build.
+
+ config TOOLCHAIN_PARALLEL
+ bool
+ prompt "Parallelize the toolchain build (May break build)"
+ depends on PKG_BUILD_PARALLEL
+ default n
+ help
+ Build the toolchain with parallel make jobs.
+ This speeds up the toolchain build on SMP machines, but may
+ break the build for certain toolchain versions.
+
+ If you say Y, toolchain build might break.
+ Before reporting build bugs, set this to N and re-run the build.
+