Thursday, December 27, 2012

X86 Framework Flat Endurance Depth Analysis

December 27, since 2006, chip giant Intel was gradually occupied the processor market absolute dominance. However, the beginning of this century, it has also been AMD's Athlon 64 processor beaten thoroughly discredited. To avoid repeating the mistakes of the past, Intel has begun to take a "step-by-step the camp" secure strategy. Now it is the brilliant achievements, of course, can not be separated from its continuously updated processor architecture, as well as the huge investment in chip manufacturing plant, but really plays a decisive role in it is its internal performance modeling team.

With the rise of the ultra-thin mobile device market, the focus of the industry for the processor performance gradually changed. To create a good user experience, energy consumption began to become as important as absolute performance. Intel also began to realize this point: the internal performance modeling team to guide the product architecture design, absolute performance processor is not the only goal of the user experience, and power efficiency have become the priority factors.

Moreover, in order to reach a better user experience, Intel is trying to transform itself role. In close cooperation, Acer introduced the W510, W700 two flat products and S7 ultra-extreme. Core and Atom processors power control to the lower level for a longer product life, the next generation Haswell processor platform, should be used on the motherboard which non-Intel components, chip giant hardware vendors do detailed provisions. Haswell processor to wait until after the second quarter of 2013 to the listing, the Ivy Bridge architecture strength can not be underestimated. Earlier this year, Intel had announced early next year, you want to Ivy Bridge power consumption to 10W or less. Reason to believe, Ivy Bridge will be the main recent dominant market changes. The moment we see less than Core processor equipped iPad to believe that sooner or later this day.

Earlier, there were horizontal evaluation: Samsung ATIV Smart PC tablet battery is only 30Wh, less than Microsoft's Surface RT flat 31Wh former screen size of 11 inch (1366 × 768 resolution) than the latter ( 10-inch, with a resolution of 1366 × 768), but equipped with the Intel Atom Z2760 processor ATIV Smart PC life better than the Surface RT. Life, ATIV Smart PC in continuous web browser test length of 17% compared to rivals; video playback test, ATIV Smart PC win 3%. Also done by Intel Atom and Tegra 3 processor comparison, in their presentation, regardless of the device as a whole or individual components, using 32nm Clover Trail architecture-power Atom processor is better than the Tegra 3.

The reduction of the power consumption of the end-user benefits are obvious: the running speed of the Intel Atom processor itself must be better than the ARM architecture Cortex A9 core Tegra 3 processor but with a four TSMC 40nm process production Cortex A9 cores. Other hardware configuration of the same case, the Atom processor is not only efficient and energy-saving.

In fact, Intel does not have any special evaluation methods. They just select the device to dismantle and to measure the energy consumption from the level of the individual components, rather than the use of certain software to evaluate the entire system. Typically, the device motherboard contains a number of different components of the display, network, storage, system-on-chip, engineers need different workload conditions repeated attempts to identify the specific CPU or GPU power supply filter circuit.

Under normal circumstances, the power supply for the CPU or GPU filter circuit is a standard LC (inductance capacitance) filter. To capture the LC filter, the series as long as in the inductor before a very small resistance (2-20MΩ), measuring the difference between the voltage across the resistor, and can use the classic Ohm's law to obtain current, and further calculating power. In support of external tools, the the specific kernel power changes for a period of time system-on-chip can also be recorded.
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