Date: Thu, 12 Jan 2012 19:11:54 -0800 From: Garrett Cooper <yanegomi@gmail.com> To: Doug Barton <dougb@freebsd.org> Cc: Andre Goree <andre@drenet.info>, freebsd-stable@freebsd.org, Rob Clark <rpclark@tds.net> Subject: Re: GENERIC make buildkernel error / fails - posix_fadvise Message-ID: <CAGH67wTFy_2JAGOX=VmUx2KRmFcRrv8aaE3H4EkiqcOxmk09Hw@mail.gmail.com> In-Reply-To: <4F0F8E6F.8000909@FreeBSD.org> References: <20120111161110.4258969c.rpclark@tds.net> <CAN-pd=cPY=Eg1RintaBx6GAon3FsLm-X0h6yvSBxzq=EZ5ukbg@mail.gmail.com> <20120112200843.2a348d2f.rpclark@tds.net> <4F0F8E6F.8000909@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Jan 12, 2012 at 5:52 PM, Doug Barton <dougb@freebsd.org> wrote:
>
>>> chflags -R noschg /usr/obj/usr
>>> rm -rf /usr/obj/usr
>
> It's much faster to do:
>
> /bin/rm -rf ${obj}/* 2> /dev/null || /bin/chflags -R 0 ${obj}/* &&
> /bin/rm -rf ${obj}/*
+1. And it's faster yet when you can run parallel copies of rm on
different portions of the directory tree (e.g. xargs, find [..] -exec)
as rm is O(n).
Cheers,
-Garrett
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAGH67wTFy_2JAGOX=VmUx2KRmFcRrv8aaE3H4EkiqcOxmk09Hw>