Date: Tue, 4 Sep 2012 14:43:44 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Dimitry Andric <dimitry@andric.com> Cc: freebsd-current@freebsd.org Subject: Re: Compiler performance tests on FreeBSD 10.0-CURRENT Message-ID: <20120904214344.GA17723@troutmask.apl.washington.edu> In-Reply-To: <5046670C.6050500@andric.com> References: <5046670C.6050500@andric.com>
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On Tue, Sep 04, 2012 at 10:39:40PM +0200, Dimitry Andric wrote: > > I recently performed a series of compiler performance tests on FreeBSD > 10.0-CURRENT, particularly comparing gcc 4.2.1 and gcc 4.7.1 against > clang 3.1 and clang 3.2. > > The attached text file[1] contains more information about the tests, > some semi-cooked performance data, and my conclusions. Any errors and > omissions are also my fault, so if you notice them, please let me know. > > The executive summary: clang compiles mostly faster than gcc (sometimes > much faster), and uses significantly less memory. The benchmark is somewhat meaningless if one does not know the options that were used during the testing. -- Steve
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