I am trying to develop functionality which counts how many times a post is viewed however I am also using page caching (APC possible memcache in the future) via w3 total cache.
The "view count" value is not to be shown to anyone but administrators/editors and only when editing the post in admin section.
So my question is if I do the following for every post
update_post_meta($postID, 'view_count', $count++);
is it going to
work considering im using page caching?
if it does work, would it slow down the request considerably?
if it does slow down the request would doing a asynchronous mysql update via MYSQLI_ASYNC speed this back up?