Date: Wed, 13 Jun 2012 16:21:13 -0700 From: Kevin Oberman <kob6558@gmail.com> To: Jakub Lach <jakub_lach@mailplus.pl> Cc: freebsd-x11@freebsd.org Subject: Re: Intel KMS: a memory problem Message-ID: <CAN6yY1v0r0JGgEpW2pdjfLtv3PPE6b6eFfP29xwwcaByzFYVEA@mail.gmail.com> In-Reply-To: <1339614412996-5718122.post@n5.nabble.com> References: <4FD86E13.6090202@bally-wulff.de> <20120613112601.GS2337@deviant.kiev.zoral.com.ua> <CAN6yY1unf3yHd=aAugpGeB=b42ZB5gnP6bjTK9KpMmfs4gJCbQ@mail.gmail.com> <1339614412996-5718122.post@n5.nabble.com>
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On Wed, Jun 13, 2012 at 12:06 PM, Jakub Lach <jakub_lach@mailplus.pl> wrote: > 32 bit systems being faster > (for Windows desktop usually!) than > 64 was quite a bit time ago. > > Also, even then 64 bit ones were > faster where it could be utilised. > > Umm... Please do not be offended, but all > basics are here: > > https://en.wikipedia.org/wiki/64-bit#Pros_and_cons No offense taken. Times change and change fast in the computer world. I have not dealt with CPUs in really gory, down the gate and flip-flop level since the PDP-8x and at the "know what exactly given instruction does and how many clock cycles" since the MicroVAX and the Z-80. I have never written, nor could I read assembly language for a modern processor. Looks like my general knowledge is also a bit out of date. Thanks to the pointer to a really good article. That said, it clearly depends on just what you are doing with the processor whether 64-bit mode is signofocant win, but the issue of more general registers alone makes it pretty likely that it is if the compiler does a good job. I guess my information was from the days when compilers did not. Thanks! -- R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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