Date: Wed, 14 Nov 2007 21:07:52 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: Jeremy Chadwick <koitsu@FreeBSD.org> Cc: FreeBSD Stable <freebsd-stable@freebsd.org>, Claus Guttesen <kometen@gmail.com> Subject: Re: impressive buildworld time Message-ID: <473B5598.7040800@FreeBSD.org> In-Reply-To: <20071114183957.GA65223@eos.sc1.parodius.com> References: <b41c75520711140856m3b082903l2378140d8cd394cb@mail.gmail.com> <20071114183957.GA65223@eos.sc1.parodius.com>
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Jeremy Chadwick wrote: > On Wed, Nov 14, 2007 at 05:56:16PM +0100, Claus Guttesen wrote: >> Hi. >> >> Just installed a new DL360 with 8 cores at 2.33 Ghz and 8 GB ram and >> 15K rpm sas-disks. When I installed the beta2 from cd 'make -j 9 >> buildworld' took approx. 20 min. After a recompile of userland and >> kernel and switch to ULE it went down to: >> >>>>> World build completed on Wed Nov 14 17:44:08 CET 2007 >> -------------------------------------------------------------- >> 3552.428u 1298.485s 16:15.89 497.0% 6156+1325k 25257+8117io 3368pf+0w >> >> Not very scientific and only one run but none the less my fastest >> buildworld time ever on FreeBSD. :-) > > Congrats! :-) 16 minutes is really impressive... > > Our 2.13GHz C2D 6420 boxes w/ 2GB RAM can do this in about 19 minutes > flat (using ULE scheduler). Disks are 7200rpm SATA300. make -j2 used; > and this was RELENG_6. > > The reason I like the buildworld "benchmark" is because it's a fairly > real-world test and not something specific to just one piece of how > a machine behaves (e.g. memory benchmark, disk benchmark, CPU benchmark, > etc.). It's not a good SMP benchmark though, because large parts are entirely single-threaded, and other large parts do not parallelize beyond more than a couple of CPUs. Also it is entirely incomparable between different versions of the source tree. Kris
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