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Tensilica's Xtensa LX processor beats all other 32- and 64-bit processor cores.



Tensilica, Inc. has announced that its new Xtensa LX configurable processor core has received the highest certified out-of-the-box score ever recorded for any 32-bit or 64-bit processor core tested against the Consumer benchmark suite of the Embedded Microprocessor Benchmark Consortium (EEMBC EEMBC EDN Embedded Microprocessor Benchmark Consortium (Electronic Design News Magazine) ). The Xtensa LX processor's score of 0.51997 per MHz, which translates to 171.6 Consumermarks in a 330-MHz simulation, was nearly nine times faster than the next best 32-bit device and over five times as fast as the fastest 64-bit RISC RISC
 in full Reduced Instruction Set Computing

Computer architecture that uses a limited number of instructions. RISC became popular in microprocessors in the 1980s.
 CPU CPU
 in full central processing unit

Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit.
 tested by EEMBC.

"The out of the box scores are a good test of compiler performance," stated Markus Levy, EEMBC president. "The more C friendly the processor, the better the score, as the processor vendor is not allowed to modify the original EEMBC source code. The exceptional results for the Xtensa LX processor show that Tensilica has developed some very advanced compiler technology."

The EEMBC Consumer benchmark suite is a compilation of five separate benchmark kernels that are representative of consumer digital imaging applications. The high-pass grey-scale filter benchmark demonstrates performance in front-end processing of digital still cameras, showcasing 2-D data array and multiply/accumulate capabilities. The JPEG JPEG
 in full Joint Photographic Experts Group

Standard computer file format for storing graphic images in a compressed form for general use. JPEG images are compressed using a mathematical algorithm.
 compression and decompression benchmarks take still images from full source data captured from a sensor, compress to a JPEG file format for data storage, and reconvert re·con·vert  
intr. & tr.v. re·con·vert·ed, re·con·vert·ing, re·con·verts
To undergo or cause to undergo conversion to a previous state or condition.
 back to full image representation, a common set of tasks in consumer products such as digital still cameras and digital video camcorders. The RGB (Red Green Blue) The computer's native color space, which is the color system for capturing and displaying images. RGB was derived from our own perception of color because human eyes are sensitive to red, green and blue (see trichromaticity).  to CYMK See CMYK.  conversion benchmark demonstrates a common conversion used in color printing. The RGB to VIQ conversion benchmark demonstrates a conversion used in NTSC (National TV Standards Committee) The committee that developed the television standards for the U.S, which are also used in Canada, Japan, South Korea and several Central and South American countries. Both the committee and the standard are called "NTSC.  encoders for digital video processing.

"Our superior out of the box results in the EEMBC Consumer benchmark showcase the enhancements we've made to our compiler to optimize standard C code," stated Bernie Rosenthal, Tensilica's senior vice president of marketing and sales. "We selected the Consumer benchmark to be our first published EEMBC benchmark with this new technology because we are servicing a rapidly increasing group of customers with challenging multimedia and imaging-related applications."

EEMBC, the Embedded Microprocessor Benchmark Consortium, develops and certifies real-world benchmarks and benchmark scores to help designers select the right embedded processors for their systems. Every processor submitted for EEMBC benchmarking is tested for parameters representing different workloads and capabilities in communications, networking, consumer, office automation, automotive/industrial, embedded Java, and microcontroller-related applications. With members including leading semiconductor, intellectual property, and compiler companies, EEMBC establishes benchmark standards and provides certified benchmarking results through the EEMBC Certification Labs (ECL).
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Publication:EDP Weekly's IT Monitor
Geographic Code:1USA
Date:May 24, 2004
Words:417
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