X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org X-Mail-Handler: MailHop Outbound by DynDNS X-Report-Abuse-To: abuse AT dyndns DOT com (see http://www.dyndns.com/services/mailhop/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1+eclfDy1xkoDWB7PA7YqSc Date: Mon, 28 May 2012 17:06:46 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: Is the Latest Release of Cygwin supported on Windows Server 8/2012 Message-ID: <20120528210646.GB27867@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <70952A932255A2489522275A628B97C31348C437 AT xmb-sjc-233 DOT amer DOT cisco DOT com> <4FC169D9 DOT 6090107 AT tlinx DOT org> <4FC17A8A DOT 5050205 AT aol DOT com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4FC17A8A.5050205@aol.com> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com This discussion went off-topic quite some time ago. Please let this die. cgf On Sat, May 26, 2012 at 08:51:22PM -0400, Tim Prince wrote: >On 05/26/2012 07:40 PM, Linda Walsh wrote: >> >> >> Every time you fetch a word or instruction that is not 8-byte >> aligned, >> you force a fatal (but caught by the processor and/or OS) signal for >> unaligned >> data. That forces execution out of the pipeline (though not likely >> out of >> cache, sadly, due to frequency of occurrence). That's not counting >> the extra >> cycles to fetch the rest of the data. On some machines that can >> easily amount >> to several dozen instructions worth. >> >There have been compilers for 32-bit Windows for 20 years which gave >8-byte alignments by default. cygwin changed the default configure >parameter in binutils so as to support alignment about 8 years ago. It >was tolerable to some before then as it matters only for 64-bit and >larger objects (doubles, and SSE, after that was introduced). The >characteristics of the worst compiler (with respect to alignment) >available outside of cygwin don't have a bearing on this list. >If the powers that be have decided that 64-bit mode should be supported >on cygwin setup.exe only by mingw cross compilers, I'll accept that. > >-- >Tim Prince > > >-- >Problem reports: http://cygwin.com/problems.html >FAQ: http://cygwin.com/faq/ >Documentation: http://cygwin.com/docs.html >Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > > -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple