Date: Mon, 17 Sep 2012 00:33:07 +0200 From: Dominic Fandrey <kamikaze@bsdforen.de> To: Dimitry Andric <dimitry@andric.com> Cc: freebsd-current@FreeBSD.org, freebsd-toolchain@FreeBSD.org Subject: Re: Compiler performance tests on FreeBSD 10.0-CURRENT Message-ID: <505653A3.8010607@bsdforen.de> In-Reply-To: <50550285.4040203@andric.com> References: <50550285.4040203@andric.com>
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On 16/09/2012 00:34, Dimitry Andric wrote: > ... > > The executive summary: GENERIC kernels compiled with clang 3.2 are > slightly faster than those compiled by gcc 4.2.1, though the difference > will not very noticeable in practice. It has been my impression in the past, that math heavy applications benefit from GCC whereas I/O heavy applications yield better performance when compiled with clang. I'd say a kernel has a lot more I/O than math to deal with. -- A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?
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