Expose various stats via expvar so they can be accessed at runtime via expvarmon or other similar tools. This will largely be rendered a mute point as other activities will overrun this PR's usefulness at work, but in the short-term access to the information now is rather important and other consumers of pg_prefaulter may appreciate seeing this information in realtime.
Expose various stats via
expvarso they can be accessed at runtime viaexpvarmonor other similar tools. This will largely be rendered a mute point as other activities will overrun this PR's usefulness at work, but in the short-term access to the information now is rather important and other consumers ofpg_prefaultermay appreciate seeing this information in realtime.Fixes #9