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An RTEMS user has noticed that the performance of the RTEMS message queue routines is bound by our use of newlib's memcpy routine. The current implementation uses a byte-by-byte copy. What would it take to get a better generic implementation? Is there one laying around which could be used instead? I remember the old GNU/960 version did some alignment and then copied 16-bytes at a time. --joel Joel Sherrill Director of Research & Development joel@OARcorp.com On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (205) 722-9985