WOW! Thanks guys! Learned a lot! Although misunderstandings are always best avoided. I am actually proud that PLUGgers actually take giving advice this seriously. MABUHAY ang open source, mabuhay ang open community!
PS I actually bragged to my wife about the lists' enthusiasm to my question. Very reassuring. On Nov 30, 2007 9:13 PM, Kelsey Hartigan Go <[EMAIL PROTECTED]> wrote: > > > On Nov 27, 2007 5:10 PM, Orlando Andico <[EMAIL PROTECTED]> wrote: > > > On Nov 27, 2007 4:34 PM, Michael Tinsay <[EMAIL PROTECTED]> wrote: > > .. > > > A 64-bit processor means that it can fetch memory 64 bits at a time > > compared > > > to a 32-bit machine which fetches 32 bits at a time. Offhand, > > fetching from > > > main memory to cache should take less time. > > > > Yes -- but -- ultimately you are limited by how wide is the bus width > > to main memory. Even 32-bit Intel CPU's have a 64-bit bus width to the > > main memory. > > > > Also, working on 64 bits at a time means that a machine word consumes > > 8 bytes instead of 4 bytes. So you can only store half the number of > > words in the cache. This is why I said the cache is effectively > > halved. > > > > You're talking mostly of the code stream...however, when it's data stream > you're talking about, like heavy sorting and the like, 64 bit is going to > fly. > > > > -- > > --- > Kelsey Hartigan Go > Registered Linux user #5998 > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > [email protected] (#PLUG @ irc.free.net.ph) > Read the Guidelines: http://linux.org.ph/lists > Searchable Archives: http://archives.free.net.ph > -- Regards, Danny Ching
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