Multi-core processors have such promise. Imagine: Instead of one CPU, you
have two, four, eight, 16 or perhaps many more. Why, your performance would
multiply! But performance increases aren't linear -- not even close.
into this subject and found it stunningly complex. The bottom line is that
unless a program is specifically designed for cores, there isn't a huge
performance increase. Sometimes, apps even run slower because the clock speed
on the multi-cores is slower.
Now there's another issue holding back multi-core: It seems that multi-cores
use memory. The CPU may be ready to grind away, but the memory can't
respond fast enough. One solution? Putting memory right on top of each CPU.
Do you have a dual- or multi-core machine? And if so, how does it work?
Share your experience at firstname.lastname@example.org.
Posted by Doug Barney on December 10, 2008 at 11:53 AM