Tech note FS1435
How quickly do hits to my web site show up in FlashStats?
FlashStats shows all hits that are in the web site's log files. So the question really is, how quickly does the web server write the hits to the log file?
The answer seems to be that most web servers delay writing hits to the log file for a short time and then write a bunch of hits all at once, to save time. We have seen this behavior with all of the major web servers on the market. The only way to force the web server to write all hits to the log file is to stop the web server. Some servers will also let you pause the server, or flush its cache.