Hi, It seems our product, which include both kernel drivers and user space application, has hitted the CPU (2.8GHz Xeon) bandwidth limit. The server we are using is Dell PowerEdge 1850 that can hold 2 CPUs. To increase the CPU bandwidth, we plan to add another 2.8GHz Xeon on the server. My question are: - do we have to recompile Linux 9 (lk2.4) to let it support dual CUPs? - do we need to modify our code (both kernel drivers and user space application) to take advantage of dual processors? - should we adjust any jumpers on the motherboard to use dual processors? Thanks, T. __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/