Date: Sat, 15 Apr 2017 19:06:22 +0000 From: Alexey Dokuchaev <danfe@FreeBSD.org> To: Michael Gmelin <grembo@freebsd.org> Cc: ports@FreeBSD.org Subject: Re: LLVM port(s) take very long time to package Message-ID: <20170415190622.GC99481@FreeBSD.org> In-Reply-To: <B04AEF51-72A0-4C16-848F-B67F5BD1977D@freebsd.org> References: <20170412034308.GA56148@FreeBSD.org> <79A96B5B-8E4C-4E2E-8108-BA4F05CBFA4F@freebsd.org> <20170412093737.GB22201@FreeBSD.org> <2B393FE8-C076-4714-A718-0EDA155A5037@freebsd.org> <20170414142228.GA52898@FreeBSD.org> <B04AEF51-72A0-4C16-848F-B67F5BD1977D@freebsd.org>
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On Fri, Apr 14, 2017 at 04:42:35PM +0200, Michael Gmelin wrote: > > On 14. Apr 2017, at 16:22, Alexey Dokuchaev <danfe@FreeBSD.org> wrote: > > On Wed, Apr 12, 2017 at 12:06:42PM +0200, Michael Gmelin wrote: > >>> On 12. Apr 2017, at 11:37, Alexey Dokuchaev <danfe@FreeBSD.org> wrote: > >>> ... > >>> Other alternative to PKG_NOCOMPRESS=1 could be PKGSUFFIX=.tbz > >>> (pkg-static create -f tbz ...), will play with that as well. > >> > >> I don't think bzip will buy you much in terms of performance, > > > > Surprisingly, it actually did: > > > > $ time make package PKG_SUFX=.tbz > > ===> Building package for llvm40-4.0.0_2 > > 565.215u 5.316s 9:34.18 99.3% 7899+502k 1+3020io 0pf+0w > > ^^^^^^^ > > Single-threaded bzip2 was faster than multi-threaded xz [...] > > of larger package of course: > > Interesting, I'll tried that on our high-frequency builders. Cool, please share your numbers with us once you have them. Meanwhile, I've patched my tinderbox to package with PKG_NOCOMPRESS=1 and then use `archivers/pbzip2' to compress the file. This cut down the time to package `devel/llvm40' from previous ~50 minutes to just three without touching any libarchive(3) or pkg(8) code. I guess I can live with that until libarchive(3) and/or pkg(8) gain proper support of multicore-aware efficient modern compression algorithm(s). ./danfe
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