Nope - you shouldn't be able to notice any difference. It uses one select query, and one update query, per displayed page - on a medium sized forum these will run in less than 1/100th of a second.

The pages themselves will be slightly larger due to the list of names - roughly 1k per 10/12 names.

How difficult would it be to limit the reader log to only those users who have posted to the particular thread? I am not asking you to mod the plugin, just wondering how monumental it would be for me to augment, and (if it is not a breach of etiquette to ask) where I should start if it is not a performance-draining epic?

Not too difficult - you would need another sql query to extract a list of all posters in the thread, and then some php to disable the display if the viewer is not in that list.

Could it be done at the point in which the readers are logged into the +++++ad table (ie. if user has posted before then update reader log for the post when the user enters the thread). Well, I know it can be done, but which would be more efficient from a resource/storage standpoint: pre-log analysis, or filtering the results as mentioned above?

Sorry if I am getting to involved. I have decent php/mysql chops, but I am pretty new to vBulletin. You seem to be a plugin guru so I want to know if I am way off base or if I will run into massive troubles if I try to tackle a pre-log evaluation scenario with the initial INSERT.

You wouldn't want to do it when updating the readtime, otherwise you would lose/miss data - someone viewing the thread, who hasn't posted in it yet, wouldn't get recorded as having read it.

Hmm, that sounds like what I might want it to do. Basically, when a user who has previously posted to the thread enters the thread, I want it to log their most recent visit - anyone who has not posted to the thread should be ignored.

That said, I am not concerned if a person posting to the thread is logged as a person who 'read' the post right after their post - I would be happy if it simply logged subsequent visits to the thread (basically to see if a poster ever revisted the thread).

Make sense?

sweet plugin, by the way, as is :D

thanx for the hack
what about add opition in this setting allow to show the table up or down like the previous hack
up = under the code

$polls if that show

down = same place Currently

Installed it. Works nicely! :-)

BTW, there is no instruction on how to configure this or where the control panel is. It took me a while to search for it until I found the configuration in VBulletin Options - Thread Display Options (showthread).

For other novice like me, a little guidance on configuration/CP would be helpful.

Thanks

NT

Options location added to notes.