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To make it more apparent that there is not change in functionality we introduced Makefile.parallel separately and now flip it with the main Makefile, which moves into Makefile.perf. The renames are: Makefile.parallel => Makefile Makefile => Makefile.perf Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-igRfuw9ugbnnpixLd6wpptzl@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
25 lines
603 B
Makefile
25 lines
603 B
Makefile
#
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# Do a parallel build with multiple jobs, based on the number of CPUs online
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# in this system: 'make -j8' on a 8-CPU system, etc.
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#
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# (To override it, run 'make JOBS=1' and similar.)
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#
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ifeq ($(JOBS),)
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JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
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ifeq ($(JOBS),)
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JOBS := 1
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endif
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endif
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export JOBS
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$(info $(shell printf '# [ perf build: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build. ]\n'))
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#
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# Needed if no target specified:
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#
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all:
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@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
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%:
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@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
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