Date: Thu, 19 Aug 2010 10:49:13 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: "V. T. Mueller, Continum" <v.t.mueller@continum.net> Cc: "arch@freebsd.org" <arch@FreeBSD.org>, "current@freebsd.org" <current@FreeBSD.org> Subject: Re: Removal of ICC (intel compiler) bits from mk Message-ID: <20100819104913.19722klqtkcfy2gw@webmail.leidinger.net> In-Reply-To: <4C6CDB3A.1010200@continum.net> References: <E604222D-A731-4F0E-BF21-FF7F4306A899@gmail.com> <AANLkTimCdcBvgBt1sr2y1_=6fOEGWFFxa=hRwQ5vzyhT@mail.gmail.com> <65F17C45-55C1-4349-A4D1-A3D6AD0D9A80@FreeBSD.org> <4C6C1EB1.5000004@FreeBSD.org> <20100819090128.22597bbvyogdw9wk@webmail.leidinger.net> <4C6CDB3A.1010200@continum.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Quoting "V. T. Mueller, Continum" <v.t.mueller@continum.net> (from Thu, 19 Aug 2010 09:20:26 +0200): > Hello, > > Alexander Leidinger wrote: >> If someone would get icc 11.x up and runnig as a port (similar to >> what we have for outdated icc version in the ports collection), I >> would have a look if my contact at Intel is still working there in >> a position which allows him to get a commercial license for us. > > A while ago it was stated by MySQL AB, that their dbms performs > about 20% better when compiled with icc instead of gcc. Is this > (still) true? This looks overly simplified. "It runs better on CPU X with benchmark Y on Mainboard Z when you use gcc A.B.C with options D and compare it to icc E.F.G with options H." is something you can use in such cases, but it doesn't tell you if it will be the case on your machines with your workload. If you want to know if it is faster on your machines with your workload, then there is only one way to find it out: try it (be warned, due to the amount of optimization options available in gcc/icc, something like this will take a lot of time, as there are a lot of combinations to try). Bye, Alexander. -- Today is the first day of the rest of your life. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100819104913.19722klqtkcfy2gw>