Sometimes when we vectorize a loop, we get a high Clocks Per Instruction Retired (CPI) value. This happens when there is high bus utilization and the bus gets saturated.

by Alan Zeichick Introduction Read the tale of two migrations: vertically to the Intel® Xeon® processor with Intel® Extended Memory 64 Technology, then horizontally to Intel® Itanium® microarchit ...

Introduction The choice of the server/processor complex significantly affects the ability of data center managers to achieve their objectives. For example, the Intel® Xeon™ processor for dual processi ...

by George Walsh Introduction There's really no denying that application optimization yields performance benefits. The question in each case is whether time spent optimizing and resulting perform ...

Introduction Recent years have yielded an amazing number of new operating systems, new processors, and new platform capabilities that provide exciting opportunities for application developers. Con ...

Introduction A Deeper Pipeline and New Cache Structure The Intel NetBurst® microarchitecture is a new feature from Intel that was introduced in the Pentium® 4 and Intel® Xeon™ processors. Althoug ...

  Introduction by Jill SteinbergOne of the many technologies Intel has brought to market with its introduction of a new generation of Intel® Xeon® processor-based server and workstation platforms, ba ...

  Introduction By Andrew BinstockDue to the strategic importance of the 64-bit Intel® Itanium architecture and Intel® Extended Memory 64 Technology (Intel® EM64T) to Intel's growth, the company has p ...

  Introduction  The early stages of porting software from the 32-bit environment to 64-bits can dramatically increase the efficiency and chances of success for the entire project. The guidelines cove ...

  Introduction By Allan McNaughtonChoosing the right e-business infrastructure platform has never been more important, or more difficult. With the proliferation of technology vendors it is all too ea ...

by Ravi Hegde Introduction Enabling/disabling hardware prefetch mechanisms on discrete applications can help system integrators and software developers obtain optimal performance for solutions runnin ...

What is Intel® Extended Memory 64 Technology?Intel® Extended Memory 64 Technology, or Intel®64, is an enhancement to Intel's IA-32 architecture. The enhancement allows the processor to run newly writte ...