Date: Sat, 9 Apr 2022 00:41:18 GMT From: Ed Maste <emaste@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a8267ecc3df0 - main - Speed up *-old-* make targets by using sed instead of xargs Message-ID: <202204090041.2390fIR0079227@gitrepo.freebsd.org>
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The branch main has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=a8267ecc3df0aa633daa56360d67a24f9b1d3961 commit a8267ecc3df0aa633daa56360d67a24f9b1d3961 Author: Ed Maste <emaste@FreeBSD.org> AuthorDate: 2022-04-01 22:58:00 +0000 Commit: Ed Maste <emaste@FreeBSD.org> CommitDate: 2022-04-09 00:41:10 +0000 Speed up *-old-* make targets by using sed instead of xargs Targets like 'list-old-files' used "xargs -n1" to produce a list with one file per line. Using xargs resulted in one fork+exec for each Argument, resulting in rather long runtime. Instead, use sed to split the list. On one machine `make list-old-files` took 30s wall clock time with xargs and less than 1s with sed. Reviewed by: jhb MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34741 --- Makefile.inc1 | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Makefile.inc1 b/Makefile.inc1 index f4d5b4cc8050..1f29e89881c0 100644 --- a/Makefile.inc1 +++ b/Makefile.inc1 @@ -3208,7 +3208,8 @@ list-old-files: .PHONY ${MAKE} -f ${.CURDIR}/Makefile.inc1 ${.MAKEFLAGS} ${.TARGET} \ -V OLD_FILES -V "OLD_FILES:Musr/share/*.gz:R" \ -V "OLD_FILES:Mlib/*.so.*:S,^lib,usr/lib32," \ - -V "OLD_FILES:Musr/lib/*:S,^usr/lib,usr/lib32," | xargs -n1 | sort + -V "OLD_FILES:Musr/lib/*:S,^usr/lib,usr/lib32," | \ + sed -E 's/[[:space:]]+/\n/g' | sort delete-old-files: .PHONY @echo ">>> Removing old files (only deletes safe to delete libs)" @@ -3275,7 +3276,7 @@ list-old-libs: .PHONY -V OLD_LIBS -V MOVED_LIBS -V "OLD_LIBS:Mlib/*:S,^lib,usr/lib32," \ -V "OLD_LIBS:Musr/lib/*:S,^usr/lib,usr/lib32," \ -V "OLD_LIBS:Mlib/casper/*:S,^lib/casper,usr/lib32," | \ - xargs -n1 | sort + sed -E 's/[[:space:]]+/\n/g' | sort delete-old-libs: .PHONY @echo ">>> Removing old libraries" @@ -3316,7 +3317,7 @@ check-old-libs: .PHONY list-old-dirs: .PHONY @cd ${.CURDIR}; \ ${MAKE} -f ${.CURDIR}/Makefile.inc1 ${.MAKEFLAGS} ${.TARGET} \ - -V OLD_DIRS | xargs -n1 | sort -r + -V OLD_DIRS | sed -E 's/[[:space:]]+/\n/g' | sort -r delete-old-dirs: .PHONY @echo ">>> Removing old directories"
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