Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×
Intel

+ - Not All Cores Created Equal->

Submitted by
joabj
joabj writes "Virginia Tech researchers have found that the performance of programs running on multicore processors can vary from server to server, and even from core to core. Factors such as which core handles interrupts, or which cache holds the needed data can change from run to run. Such resources tend to be allocated arbitrarily now. As a result, program execution times can vary up to 10 percent. So if you're wondering why your code ran faster yesterday than today, and you're running it on a multiucore processor, you may want to take a look at how the CPU is handling the processes. The good news is that the VT researchers are working on a library that will recognize inefficient behavior and rearrange things in a more timely fashion."
Link to Original Source
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Not All Cores Created Equal

Comments Filter:

"Mr. Watson, come here, I want you." -- Alexander Graham Bell

Working...