to generate eficient code than the hardware performance. I made some test with STREAM on a DS20 system with gcc and Compaq C, results were quite differents. I think it's dificult to conclude something on memory bandwidth with a gcc compiled STREAM. A+ -- Guignon Thomas, guignon at artabel.net Tel: 01 69 18 95 95 Fax: 01 69 18 95 96 ARTABEL S.A. 69, rue de Paris 91400 Orsay