When i publish new posts, i notice the new posts do not appear in the feed
http://mysite.com/feed instantaneously, there is always lag time, one or several hours.
When i change something in
wp-includes/feed-rss2.php file (just
echo 'test'), it also takes one or 2 hour to see the
test word in
http://mysite.com/feed, it means wordpress only use that file periodically.
Anyone know how to solve this problem? I want whenever the
http://mysite.com/feed page is open in browser, it must use