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Brad, |
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Thank you for shedding the light on this subject. |
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|
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On Thu, 2004-01-22 at 08:59, Brad House wrote: |
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> You're wrong on the performance front. That is a sparc |
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> myth, and only applies to sparc. It is true that executables |
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> will generally consume more memory, and therefore have longer |
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> startup times, so for small apps that get run very often but |
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> rarely do anything at all, it could theorhetically be slower. |
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> But the fact is the performance numbers as a whole far outweigh |
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> the statistically few apps that would be penalized. Things like |
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> JAVA, SQL DBs, Mozilla, KDE/Gnome, POVRay, compilations, are |
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> all considerably faster in 64bit mode from my experience. |
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> |
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> Also, with that same argument you made, why do we have a amd64 |
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> port ?? Why don't we have just the stanard x86 port, that compiles |
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> a 64bit kernel, and has a 32bit userland. Oh and yes, I am also |
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> the lead for amd64 ... |
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> |
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> Basically trust me on this one, unless you have a machine that can |
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> prove it. Like I said, sparc's are different beasts (too many poor |
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> design choices IMHO) |
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> |
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> |
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> > Brad, |
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> > |
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> > Why does ppc64 need a 64bit userland? |
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> > |
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> > It would seem to me that you would not want a 64 bit userland at all. |
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> > From my understanding pure 64bit userlands tend to hurt performance |
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> > because twice as much data is going across the bus as needed. |
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> > Are -m32 -m64 not valid gcc/ld options for you? |
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> > |
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> > On Wed, 2004-01-21 at 08:50, Brad House wrote: |
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> >> We DEFINATELY need ppc64!!!! |
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> >> ppc64 is a 64bit kernel and 64bit userland |
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> >> What ppc does is a 32bit kernel and a 32bit userland |
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> >> What sparc64 does is a 64bit kernel and a 32bit userland |
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> >> What sparc does is a 32bit kernel and a 32bit userland |
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> >> See the main difference here, it's all in the userlands man! |
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> >> |
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> >> If anyone removes ppc64 keywords, I will personally lynch you. |
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> >> |
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> >> -Brad |
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> >> |
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> >> > maybe i'm lost with this but is there any reason we need ppc64 ? |
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> >> > couldnt something be done with ppc/ppc64 like the sparc/sparc64 merge |
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> >> ? |
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> >> > -mike |
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> >> > |
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> >> > |
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> >> > -- |
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> >> > gentoo-dev@g.o mailing list |
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> >> > |
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> >> > |
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> >> > |
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> >> |
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> >> |
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> >> -- |
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> >> gentoo-dev@g.o mailing list |
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> > -- |
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> > Ned Ludd <solar@g.o> |
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> > Gentoo Linux Developer |
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> > |
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-- |
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Ned Ludd <solar@g.o> |
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Gentoo Linux Developer |
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