在 2006-06-25日的 17:18 +0200，Etaoin Shrdlu写道： > On Sunday 25 June 2006 06:01, Zhang Weiwu wrote: > > > Besides, is 64-big executable much faster then 32-bit executable? > > > > P.S. I bet there must be an article somewhere on the Internet telling > > how to get 64-bit linux running on sparcs, only that I didn't find it. > > Gentoo on sparc64 currently uses a 64 bit kernel and a 32 bit userland. > The kernel is compiled with a different compiler than userland apps. > See > > http://www.ultralinux.org/faq.html#q_1_5 > http://devmanual.gentoo.org/archs/sparc/index.html > http://marc.theaimsgroup.com/?l=gentoo-sparc&m=110277902832636&w=2 > http://marc.theaimsgroup.com/?l=gentoo-sparc&m=110281060602052&w=2 > http://marc.theaimsgroup.com/?l=gentoo-sparc&m=109545333801428&w=2
Thank you for the answer. Just another smaller question: from pruely a user's view (who simply wish to use it, rather then from developer view who might gain knowledge and fun doing it), is it worthy to try it (64bit sparc)? The original idea is the system as a print server is too slow (capable of doing fast dithering for the inkjet printer, but not fast enough to do real-time even-tone dithering to server the printer, usually cause printer to wait for server), a rough gain of 20% to 30% CPU power, by my guessing of observing top(1), should be enough for the printer. Dithering is always a CPU intensive job and we do a lot of printing. I observed kernel is taking only a very small percentage of CPU usage, if I try hours to get 64-bit kernel running but only obtain 5% speed gain, that may not be worth. Or should I try Solaris 10? Should Solaris provide better performance in this very case? (how much performance gain might happen? 10%? 20%?) I don't need a very close estimation, just if someone can give me a very rough estimation is very helpful, for I am not techincally able to do the decision:) If switch to Solaris for performance (no offensive, I am a 5 year's hardcore Linux user), generally speaking, is Solaris very compatible with PCI cards like NEC USB controller, Promise IDE controller and ethernet cards? And thank you a lot for you time, Etaoin Shrdlu
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