Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 27 Aug 2016 17:10:44 -0700
From:      "K. Macy" <kmacy@freebsd.org>
To:        Lars Engels <lars.engels@0x20.net>
Cc:        Andrea Brancatelli <abrancatelli@schema31.it>, Kubilay Kocak <koobs@freebsd.org>,  Erich Dollansky <erichsfreebsdlist@alogt.com>, freebsd-stable <freebsd-stable@freebsd.org>,  Johannes Dieterich <dieterich.joh@gmail.com>
Subject:   Re: Benchmarks results for FreeBSD 11
Message-ID:  <CAHM0Q_My2otDtVSzTiQMHE=ty%2B7kEBP%2BwfFofBvOzoz8ro%2B-sQ@mail.gmail.com>
In-Reply-To: <20160822101423.GF18643@e-new.0x20.net>
References:  <20160819073422.4292997b@X220.alogt.com> <af0fefab-69d7-f0a9-3d6d-4a9891d5a156@FreeBSD.org> <20160821144505.27c0f55d@X220.alogt.com> <827183a944ee4052649c152d65204444@schema31.it> <20160822101423.GF18643@e-new.0x20.net>

next in thread | previous in thread | raw e-mail | index | archive | help
> The problem here is that Phoronix took a Beta version of FreeBSD 11.
> Beta versions have a lot of debugging (malloc, invariants, witness)
> options enabled which make it significantly slower than release
> versions. This is even obviously when you run a Beta as a desktop. It
> just feels much slower.


I don't know what was going on in these particular tests, but in a
more recent benchmarking run
-https://www.phoronix.com/scan.php?page=article&item=freebsd11-clang-gcc&num=1
- you're seeing the result of openmp being disabled in base. The clang
maintainer for src refuses to include libomp as required for -fopenmp
because nothing in base requires it. I certainly can't speak for the
community as a whole - but based on my experience when discussing new
features that adversely impact networking performance my impression is
that out of the box performance is generally not a priority.

-M



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAHM0Q_My2otDtVSzTiQMHE=ty%2B7kEBP%2BwfFofBvOzoz8ro%2B-sQ>