Hi, I understand that page I/O operations under Linux-2.2.x is synchronous. I am seeking a reliable way to measure the time taken to bring one page from disk to memory, say, a page belonging to a regular file, file memory mapping or swap partition. (a solution in linux-2.2.x is preferred) Thanks in advance! -- regards, ZM -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/