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Re: Is the Latest Release of Cygwin supported on Windows Server 8/2012
This discussion went off-topic quite some time ago.
Please let this die.
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
>> you force a fatal (but caught by the processor and/or OS) signal for
>> 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.
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