I'm currently checking HD access with the following
echo 1 > /proc/sys/vm/block_dump
tail -f /tmp/syslog
and this log message pops up once in a while:
Aug 31 22:44:18 Frasse kernel: [ 4818.570038] ifconfig(2817): dirtied inode 4026531841 (net) on proc
What does it mean? Does it involve HD writes?