Date: Wed, 24 Aug 2016 04:55:58 +0800 From: Erich Dollansky <erichsfreebsdlist@alogt.com> To: Lars Engels <lars.engels@0x20.net> Cc: Slawa Olhovchenkov <slw@zxy.spb.ru>, Andrea Brancatelli <abrancatelli@schema31.it>, Kubilay Kocak <koobs@freebsd.org>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: Benchmarks results for FreeBSD 11 Message-ID: <20160824045558.18c86764@X220.alogt.com> In-Reply-To: <20160823110159.GU18643@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> <20160822120215.GV22212@zxy.spb.ru> <20160823110159.GU18643@e-new.0x20.net>
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Hi, On Tue, 23 Aug 2016 13:01:59 +0200 Lars Engels <lars.engels@0x20.net> wrote: > On Mon, Aug 22, 2016 at 03:02:15PM +0300, Slawa Olhovchenkov wrote: > > On Mon, Aug 22, 2016 at 12:14:23PM +0200, Lars Engels wrote: > > > > > On Mon, Aug 22, 2016 at 11:48:46AM +0200, Andrea Brancatelli > > > wrote: > > > > Il 2016-08-21 08:45 Erich Dollansky ha scritto: > > > > > > > > > I am sure that some know of this site: > > > > > > > > > > http://www.phoronix.com/scan.php?page=article&item=2bsd-7linux-bench&num=4 > > > > > > > > > > I wonder about the results for FreeBSD. As I do not have 11 > > > > > on my machines, a stupid question. Are there still some > > > > > debugging aids enabled in 11? > > > > > They're off in those versions, but did note compiler (and > > > > > compiler args) differences between within most tests (See > > > > > attachments) as you mentioned. > > > > the benchmark then compares the off-the-shelve distributions. > > > > > > > > Excuse me, as a casual reader of the list, I don't get this > > > > "critique". > > > > > > > > I never recompile my installations, I just use them from the > > > > installation CD (as probably 90% of the rest of the world), so > > > > I don't get what is wrong with the approach of comparing an > > > > out-of-the-box FreeBSD 11 with an out-of-the-box Ubuntu > > > > whatever. > > > > > > > > If FreeBSD 11 "out-the-box" performs slow because the standard > > > > compilers options aren't good it's not a problem with the > > > > benchmarking platform but with the default CD compiling > > > > options. > > > > > > > > Am I getting it wrong? > > > > > > 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. > > > > No. > > All debugs in amd64 is off at time of BETA. > > Ok, then FreeBSD is just slower... you missed the main point. The test was done with applications compiled with unknown options. If you want to find out the impact of an operating system on you application you have to use the same compiler with the same options on all platforms. Basically, it was a compiler test named operating system benchmark. Erich
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