Linux:

 Notifier      Round     Register [ms]     Unregister [ms]
 --------      -----     -------------     ---------------
 
 Native:       1                 0.03                 0.06
               2                 0.04                 0.06
               3                 0.03                 0.07
               4                 0.03                 0.05


 NIO2:         1                 0.06                 0.08
               2                 0.05                 0.11
               3                 0.04                 0.15
               4                 0.08                 0.09

 The values represent average time of registering or
 unregistering of a watched FileObject in
 o.n.m.masterfs.watcher.Watcher.

 One round includes opening and closing of project
 api.search (NetBeans module).

 Tested on "warm" SSD hard drive with Ext4 filesystem,
 measuring on cold drives or slower drives should follow.