Computer CPU makers debate multithreading, security

Wednesday, 15 October 2003, 12:52 PM EST

Computer microprocessor makers debated the merits of multithreading and hardware security at the Microprocessor Forum. Server CPU makers Fujitsu, IBM and Sun Microsystems provided more details on their upcoming multithreaded architectures, while Via Technologies showed a CPU with hardware security and Transmeta officially announced its Efficeon notebook chip.

While major server CPUs are moving to multicore, multithreaded architectures, an IBM senior engineer said the company has determined dual-threaded cores are optimal for its chips. "If you have a very efficient pipeline and memory access is very good, you get the best performance with two threads per die," said Balaram Sinharoy, Power5 chief scientist.

IBM's Power5 chip, a dual-core processor expected to ship next year, gets an average 40 percent performance boost from being dual-threaded, Sinharoy said. However, adding an extra thread only gains about 10-15 percent more performance, he added.

[ Read more ]




Spotlight

(IN)SECURE Magazine issue 45 released

(IN)SECURE Magazine is a free digital security publication discussing some of the hottest information security topics. Learn about personal data bankruptcy and the cost of privacy, security and compliance, delivering digital security to a mobile world, and much more.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Thu, Mar 5th
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //