Concurrent RedHawk Linux 2.2 Supports Both Intel and AMD Processors

12/7/2004 - Concurrent Computer Corporation (NASDAQ: CCUR), Integrated Solutions Division, a leading provider of integrated computer solutions for mission-critical applications, announced availability of version 2.2 of its RedHawkTM Linux® real-time operating system. RedHawk 2.2 is one of the most deterministic Linux operating systems available today supporting both 32-bit Intel XeonTM and the 64-bit AMD OpteronTM platforms in the same release. RedHawk 2.2 adds support of Intel’s latest Xeon EM64T (Nocona) based systems. Based on the 2.6.6 Linux kernel, RedHawk 2.2 is compatible with the popular Red HatTM Inc. Enterprise Linux distribution. RedHawk 2.2 began shipping with Concurrent’s iHawkTM commercial-off-the-shelf (COTS) systems in October and is now in use by customers on Intel Xeon and AMD Opteron platforms developing 32-bit and 64-bit real-time applications.

Providing the same user interface and real-time performance on Intel Xeon and Opteron platforms, RedHawk 2.2 gives customers their choice of processor families to suit their needs. RedHawk incorporates all the standard Linux advancements provided by the 2.6.6 kernel, such as significant file system performance improvements, combined with a wealth of Concurrent real-time enhancements to deliver one of the most deterministic Linux computing systems available today.

Concurrent RedHawk Linux features a fully preemptive, multithreaded, reentrant kernel. Key RedHawk real-time enhancements include processor shielding on a per CPU basis, priority inheritance, minimal dispatch latencies, cross-processor interrupt reduction, user-level real-time Hyper-Threading control, non-preemptible spin locks and many additional improvements. An excellent example of RedHawk’s real-time superiority is its interrupt response time of less than 30 microseconds on shielded processors. RedHawk 2.2 is designed to utilize the unique features of both Intel and AMD processor families for maximum flexibility and performance.

Deployed in both domestic and international applications, RedHawk Linux on Concurrent’s Intel Xeon, EM64T and AMD Opteron powered iHawk systems has a proven reputation in mission-critical applications, including the C-17 aircraft program, Eurofighter training systems, submarine sonar simulation and testing, Air Traffic Control systems and the Theater High Altitude Area Defense (THAAD) missile program. RedHawk is also used in telecommunications testing, advanced music simulation research, U.S. and European automotive simulation systems and industrial data acquisition and control applications such as wind tunnel testing.

“Concurrent’s continued support for evolving processor platforms enables users from a growing diversity of markets, such as business, financial and medical sectors, access to a feature-rich operating system for increased functionality and processing power,” said Gary Beerman, director of Marketing, Concurrent Integrated Solutions Division. “Concurrent RedHawk 2.2 on iHawk COTS systems delivers the deterministic applications Concurrent’s customers trust, with the added benefit of choosing from 32-bit or 64-bit platforms according to their individual needs.”

About Concurrent
Since 1966, Concurrent (, headquartered in Duluth, Georgia, has been a premier provider of high-performance, real-time computer systems, solutions, and software for commercial and government markets. The company’s Integrated Solutions Division (ISD) focuses on strategic market areas that include hardware-in-the-loop and man-in-the-loop simulation, data acquisition, industrial systems, and software. Concurrent’s Video-On-Demand (VOD) Division is a recognized leader in the digital cable market, with VOD systems deployed worldwide by major broadband operators. Its proven technology is based on open standards and provides a flexible, comprehensive and robust solution for HFC, DSL, and IP-based networks. Concurrent has nearly four decades of real-time technology experience and provides its best of breed solutions through offices in North America, Europe, Asia, and Australia.

Concurrent, its logo, RedHawk and iHawk are registered and unregistered trademarks of Concurrent. The registered trademark Linux® is used pursuant to a sublicense from the Linux Mark Institute, the exclusive licensee of Linus Torvalds, owner of the mark on a world-wide basis.

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