on 08/07/2013 00:15 Alfred Perlstein said the following: > On 7/7/13 2:01 PM, Garrett Cooper wrote: >> Why the magic number 12? > > Numbers higher seem to result in worse performance as reported by some members > of my team.
Should we really commit all "notes to self" or "my team's knowledge base" to FreeBSD source code like this? >> >> On Jul 7, 2013, at 1:39 PM, Alfred Perlstein <alf...@freebsd.org> wrote: >> >>> Author: alfred >>> Date: Sun Jul 7 20:39:11 2013 >>> New Revision: 253002 >>> URL: http://svnweb.freebsd.org/changeset/base/253002 >>> >>> Log: >>> Document tip on how to build all kernels quickly. >>> >>> Modified: >>> head/Makefile >>> >>> Modified: head/Makefile >>> ============================================================================== >>> --- head/Makefile Sun Jul 7 19:58:14 2013 (r253001) >>> +++ head/Makefile Sun Jul 7 20:39:11 2013 (r253002) >>> @@ -32,6 +32,12 @@ >>> # targets - Print a list of supported TARGET/TARGET_ARCH pairs >>> # for world and kernel targets. >>> # toolchains - Build a toolchain for all world and kernel targets. >>> +# >>> +# "quick" way to test all kernel builds: >>> +# _jflag=`sysctl -n hw.ncpu` >>> +# _jflag=$(($_jflag * 2)) >>> +# [ $_jflag -gt 12 ] && _jflag=12 >>> +# make universe -DMAKE_JUST_KERNELS JFLAG=${jflag} >>> # >>> # This makefile is simple by design. The FreeBSD make automatically reads >>> # the /usr/share/mk/sys.mk unless the -m argument is specified on the >>> _______________________________________________ >>> svn-src-head@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/svn-src-head >>> To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org" > -- Andriy Gapon _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
