Date: Sat, 16 Dec 2017 17:49:53 +0100 From: Wolfram Schneider <wosch@freebsd.org> To: Konstantin Belousov <kostikbel@gmail.com>, Wolfram Schneider <wosch@freebsd.org> Cc: David Wolfskill <david@catwhisker.org>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: /usr/obj is 11GB huge on FreeBSD 12-current Message-ID: <CAMWY7CABjdO%2BsKetQs%2BBGb4jZan%2Bh_JzMNH8q07uc2KvxSQ-uQ@mail.gmail.com> In-Reply-To: <CAMWY7CBEd5hv5PNDe_=acxLXsBUw56b=u=%2BH%2BAGxFUD2XCfXmA@mail.gmail.com> References: <CAMWY7CDoF9LWJiz1wB7XWUtKsvk6QJGvH=yrUCh9FnRoG4y7EA@mail.gmail.com> <20171215120243.GB1179@albert.catwhisker.org> <CAMWY7CCWZ8RkprECMnPsAJy-3vfzdy50u0Zq4BGyCexKoEan%2Bg@mail.gmail.com> <CAMWY7CCOWmDzfPEZNTdxNCPO8JA46h98GrJPBd11un6Pn%2BaFhg@mail.gmail.com> <20171215183928.GO2272@kib.kiev.ua> <CAMWY7CBEd5hv5PNDe_=acxLXsBUw56b=u=%2BH%2BAGxFUD2XCfXmA@mail.gmail.com>
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On 15 December 2017 at 20:20, Wolfram Schneider <wosch@freebsd.org> wrote: > On 15 December 2017 at 19:39, Konstantin Belousov <kostikbel@gmail.com> wrote: >> On Fri, Dec 15, 2017 at 06:38:48PM +0100, Wolfram Schneider wrote: >>> On 15 December 2017 at 17:51, Wolfram Schneider <wosch@freebsd.org> wrote: >>> > On 15 December 2017 at 13:02, David Wolfskill <david@catwhisker.org> wrote: >>> >> On Fri, Dec 15, 2017 at 10:12:09AM +0100, Wolfram Schneider wrote: >>> >>> Hi, >>> >>> >>> >>> I upgraded a machine from 11-stable to 12-current. The /usr/obj tree >>> >>> is now 11GB huge: >>> >>> >>> >>> FreeBSD 12-current >>> >>> $ du -hs /usr/obj >>> >>> 11G /usr/obj >>> >>> >>> >>> on FreeBSD 11-stable it was less the size: >>> >>> $ du -hs /usr/obj >>> >>> 5.6G /usr/obj >>> >>> >>> >>> this is a problem when you have a small VM with 20GB disk space or less. >>> >>> >>> >>> Is there a way to use less /usr/obj disk space during build? I know >>> >>> that we have to do some bootstrapping for newer compiler tools, but >>> >>> does we need to keep all temp files during the build? >>> >> >>> >> There was a change near the beginning of November; please see UPDATING >>> >> entry 20171101 -- you probably have several no-longer-used >>> >> subdirectories under /usr/obj/usr/src/. >>> >> >>> >> Once those are cleared out, my experience (tracking stable/11 & head in >>> >> different slices on the same machines) is that stbale/11 is using about >>> >> 5.0G, while head uses about 6.1G. >>> > >>> > I think the suspect directories are "tmp" and "obj-lib32", together >>> > they are 4.1GB huge. >>> > >>> > I will run a build of current again with a clean obj tree (-current on >>> > a recent -current). Let's see. >>> >>> I run a test on universe12b (FreeBSD 12.0-CURRENT #0 r325426: Sun Nov >>> 5) with an empty obj directory. >>> >>> `make buildworld' creates 9.7GB of obj data. After running `make >>> buildkernel' it will grow to 12GB. This is on a ZFS filesystem (my >>> original report was on UFS) >> >> Most likely reason of the bump is generation of debugging data, turned on >> for 12. Another not usable thing to disable are tests and profile libraries. >> Put the following into /etc/src.conf: >> WITHOUT_PROFILE=yes >> WITHOUT_DEBUG_FILES=yes >> WITHOUT_TESTS=yes > > Hi Konstantin, > > I tried these 3 variables and the results looks much better, down to > 5.1GB from 12GB. Many thanks! > > $ du -hs obj* > 12G obj-debug > 5.1G obj-nodebug I did another test which of the WITHOUT_* variables saves most of the space 5.5G obj-WITHOUT_DEBUG_FILES (6.5GB less) 10G obj-WITHOUT_LIB32 (2GB less) 11G obj-WITHOUT_PROFILE (1GB less) 12G obj-WITHOUT_TESTS if you are short on disk space (e.g. a small VM with SSD drive), you should compile with $ export WITHOUT_DEBUG_FILES=YES; make buildworld -Wolfram -- Wolfram Schneider <wosch@FreeBSD.org> https://wolfram.schneider.org
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