Hello, If the question is out track, please forgive me. I appreciate your kindly help. We are developing a communication product utlizing embedded linux, filesystem are located in Flash (JFFS2). When linux does data swapping (swap data from memory to Flash) because of lack of memory, out embedded linux is very slow. We do not want linux to do memory swapping, could we increase the size of memory to eliminate the memory swapping? How big the memory do we need, or how to calculate? Besides increasing the memory size, do we have other means to prevent linux from memory swapping? Thanks so much for your kindly help. Regards, Jihua - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html