Archive for the ‘Intel’ Category

Intel VT FlexMigration and AMD-V Extended Migration – Enabling Dynamic, Agile Data Centers

Saturday, December 3rd, 2011

VMware VMotionServer virtualization/consolidation is becoming a norm and data centers and enterprises are now looking towards the horizon at how to bring dynamic, agile, and flexible capabilities to their IT infrastructure.

What I will focus on here is one specific technology that helps meet this goal called Live Migration, the capability to move active Virtual Machines (VMs) across a pool of physical servers with no downtime. If a VM is running on a server that is reaching high utilization or where resources are becoming constrained, Live Migration can migrate the active VM to a different physical server with absolutely no downtime. Now this is what I call truly dynamic and agile! (more…)

Twitt

Intel Hyper-Threading Technology

Saturday, December 3rd, 2011

Intel Core i7Intel Hyper-Threading Technology (HT Technology) enables each processing core to run multiple tasks or “threads” at the same time. Intel HT Technology also improves overall performance on threaded software by increasing processor throughput. For each physical processor core, the operating system addresses two virtual processors. For example, a processor with two cores with HT Technology will be capable of 4-way multitasking. (more…)

Twitt

Symmetrical Multiprocessing in the Physical and Virtual World

Saturday, April 23rd, 2011

Quad Core Intel Xeon E7500

Quad Core Intel Xeon E7500

The continuous shrinking of transistor size has pushed the limits of how many transistors can be placed on a single die (currently in the millions). In consequence, to utilize the increased amount of transistors, the CPU or “the core” has been replicated multiple times on the same die. Todays CPUs contain multiple cores with each core having fast L1 caches and sharing either a larger L2 or L3 cache, the bus interface, and the external die connections. For example, an Intel Xeon 7500 can support 8 sockets each with 8 cores for a total of 64 cores. Physical machines now commonly use multiple processors, but even in a multi-core processor, each core is treated as a seperate CPU. What this means is that even a multi-core CPU is taking advantage of symmetrical multiprocessing (SMP). (more…)

Twitt