Numerous Poll.gif

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   Hi,I'm currently optimizing the load time of our website. While looking on network request in Firebug, I stumble on more than 100 request on chat.gif to our chat gateway. All these request have similar stamp in their URL (like http://chat.sherweb.com:8080/poll.gif?d=sales-chat.sherweb.com&stamp=1329145431288&u=883-1328210393641). I wonder why so many request are made.

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mcarey Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List New User Joined: 13 Feb 2012 Location: Sherbrooke Posts: 4	Post Options Post Reply Quote mcarey Report Post Quote Reply Topic: Numerous Poll.gif Posted: 13 Feb 2012 at 3:53pm
	Hi, I'm currently optimizing the load time of our website. While looking on network request in Firebug, I stumble on more than 100 request on chat.gif to our chat gateway. All these request have similar stamp in their URL (like http://chat.sherweb.com:8080/poll.gif?d=sales-chat.sherweb.com&stamp=1329145431288&u=883-1328210393641). I wonder why so many request are made.

Liam Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group Joined: 29 Jun 2011 Location: Stoke-on-Trent Posts: 137	Post Options Post Reply Quote Liam Report Post Quote Reply Posted: 13 Feb 2012 at 6:43pm
	Hello, The poll.gif is what WhosOn uses to track your visitors, this image would be loaded continuously while that visitor was on a tracked page. It would be normal to see this item loaded many times, the longer you have been on the page the more times you should see that is has been loaded. I hope this helps.

Stephen Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group Joined: 21 Oct 2005 Location: Stoke on Trent Posts: 1389	Post Options Post Reply Quote Stephen Report Post Quote Reply Posted: 14 Feb 2012 at 2:58pm
	Hi, The polling mechanism is used for chat invites and to keep track of when a visitor leaves your site. It can be switched off in the site properties - however invites will only be shown to a visitor on page changes.. and visitors will show as still on your site after they may have left (there is a timeout if a visitor doesn't change pages after 10 mins). Stephen

mcarey Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List New User Joined: 13 Feb 2012 Location: Sherbrooke Posts: 4	Post Options Post Reply Quote mcarey Report Post Quote Reply Posted: 14 Feb 2012 at 3:05pm
	Thanks for the explanations. I wont take it into account in performance benchmarks. I do think that you should the explore the possibility to use persistent HTTP connection and server PUSH. It's a lot more efficient client side :)

Stephen Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group Joined: 21 Oct 2005 Location: Stoke on Trent Posts: 1389	Post Options Post Reply Quote Stephen Report Post Quote Reply Posted: 21 Feb 2012 at 1:43pm
	The Gateway does use http 1.1 persistent connections. However I don't think a push to each connected client would better performance wise - from the Gateway point of view.