Concurrent Computer Corp has also launched v5.0 of its RTU Real-Time Unix, claiming a guaranteed response time of less than 1mS. The company says that response times of 300 microseconds have been measured, and claims that this means that for the first time, a real-time Unix can compete head-to-head with the fastest proprietary operating systems – promising that within 12 months its offering will match the speed of the fastest proprietary system. The implementation supports multiple processors via global memory and complies with AT&T’s System V.3 with task-critical real-time extensions. These include a three-fold improvement in response time, a symmetric disk driver for multiprocessor applications development, and use of multi-threading. RTU runs on the (former Masscomp) 5000 and 6000 series Motorola 68000 family machines, and runs over as many as five processors.
