Date: Wed, 28 Oct 2020 11:54:05 +0000 (UTC) From: Alex Richardson <arichardson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367101 - head/lib/googletest/tests Message-ID: <202010281154.09SBs5WP097282@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: arichardson Date: Wed Oct 28 11:54:04 2020 New Revision: 367101 URL: https://svnweb.freebsd.org/changeset/base/367101 Log: Significantly reduce compile time for googletest internal tests Clang's optimizer spends a really long time on these tests at -O2, so we now use -O0 instead. This reduces the -j32 time for lib/googletest/test from 131s to 29s. Using -O0 also reduces the disk usage from 144MB (at -O2) / 92MB (at -O1) to 82MB. Reviewed By: ngie, dim Differential Revision: https://reviews.freebsd.org/D26751 Modified: head/lib/googletest/tests/Makefile.inc Modified: head/lib/googletest/tests/Makefile.inc ============================================================================== --- head/lib/googletest/tests/Makefile.inc Wed Oct 28 11:54:00 2020 (r367100) +++ head/lib/googletest/tests/Makefile.inc Wed Oct 28 11:54:04 2020 (r367101) @@ -4,3 +4,15 @@ # Keep the existing tests directory structure (with subdirs per component) # rather than installing all of them to /usr/tests/lib/googletest TESTSDIR= ${TESTSBASE}/lib/googletest/${.CURDIR:T} + +# Clang's optimizer spends a really long time on these tests at -O2. Changing +# -O2 to -O1 reduces the -j32 time for lib/googletest/test from 131s to 71s. +# Using -O0 further reduces the time to 29s, and also reduces the disk usage +# from 144MB (at -O2) / 92MB (at -O1) to 82MB, so we use -O0. +# Note: Building without debug info saves about 10-15% of the build time, so we +# only enable debug info if DEBUG_FLAGS is not empty (71s -> 64s at -O1 and -j32). +CFLAGS.clang+= -O0 +.if empty(DEBUG_FLAGS) +MK_DEBUG_FILES:=no +CFLAGS.clang+= -g0 +.endif
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202010281154.09SBs5WP097282>