- ext4-dio-unwrit: 7 process
- getty : 5 process
- udevd : 3 process
- gnome_keyring_daemon : 2 process
However, we should not call those processes duplicated; they all have their own unique Process-ID (PID), so these processes all their own purpose and serve their own tasks.
The ext4-dio-unwrit processes, for example, are all set-up as rescuer threads to mop up any disk writes before the partitions are unmounted - there are seven because I have seven partitions in my filesystem. This is normal; the workqueues are created statically at mount time, one per cpu per file system.
A little research with a couple of utilities gave some reassurance that the others had unique purposes. We'll look at those another time. RC