New York, NY; LinuxWorld Expo — (press release excerpt) — Today, TimeSys Corporation unveiled TimeSys Linux/RT Version 2.0, a Linux distribution with enhancements to meet embedded real-time quality-of-service requirements. TimeSys Linux/RT Version 2.0 is the world's first complete QoS solution that operates directly within the Linux kernel, rather than running as an additional layer beneath Linux.

Designed for a wide array of applications, including telecommunications, automotive, defense, and embedded electronic, TimeSys Linux/RT Version 2.0's strength is its ability to guarantee predictable, real-time responses in devices that run on the Linux operating system. For example, a Linux based operating system may be used to power an Internet appliance for use in the home. This appliance will regularly be required to stream video from the Internet, receive voice-over IP phone calls, search the Internet and could possibly be linked to a home security system. Using TimeSys Linux/RT Version 2.0 in this system will allow each of these functions to take place in a predictable window of time, allocating priority levels to the most important functions – in this case the home security system.

What sets TimeSys Linux/RT Version 2.0 apart from other attempts at creating real-time solutions for Linux is the housing of the TimeSys Resource Kernel directly within the Linux kernel. This location, within Linux rather than on top of Linux, provides several advantages. For one, standard Linux applications and device drivers gain real-time responsiveness and quality-of-service enhancements. Additional TimeSys Linux/RT Version 2.0 enhancements include:

• A fully preemtable platform
  
• CPU and network reservations
  
• Priority inheritance
  
• Priority ceiling protocol
  
• A high-resolution timer
  
• 256 fixed-priority levels
  
• Periodic thread support
  
• QoS guarantees
  
• Support for Real-Time Java
  
• SMP kernel preemption support

All of these features operate directly within the Linux OS.

 
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