How to know the % physical memory used by the Linux Kernel and by individual module? I'm in a scenario like... say, I want to know the amount of RAM used by IPv6 module. How do I do this? I've tried top, pmap, size, lsmod etc. But couldn't infer much. top> wan't much useful to identify the module pmap> didn't help either as it needs pid size> (usage #size /lib/modules/2.6.25-14.fc9.i686/kernel/net/ipv6/sit.ko) couldn't infer the output lsmod also give some size info, but is that RAM usage? does that include code+data+heap? free, /proc/meminfo, slabtop none are helpful for me! I want the kernel's % of RAM usage (when applications are running) but not the process' % of RAM usage. I'm going insane in finding this! Thanks in advance! # lsmod Module Size Used by sit 12104 0 # size /lib/modules/2.6.25-14.fc9.i686/kernel/net/ipv6/sit.ko text data bss dec hex filename 5052 4500 200 9752 2618 /lib/modules/2.6.25-14.fc9.i686/kernel/net/ipv6/sit.ko lsmod says it's 12104 bytes, size says 9752 bytes!!! # ls /lib/modules/2.6.25-14.fc9.i686/kernel/net/ipv6/sit.ko -l -rwxr--r-- 1 root root 14828 2008-05-01 16:19 /lib/modules/2.6.25-14.fc9.i686/kernel/net/ipv6/sit.ko as listed by ls, size on disk, of sit.ko module is 14828 bytes...!