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Does any browser actually support pipelining?

G

glugglug

Diamond Member
I'm trying to test the pipelining feature I added to some HTTP server code.

Using a packet sniffer to verify, I can't find any browser that actually pipelines the requests!

First thing I tried was firefox 3, with pipelining explicitly turned on both with the network.http.pipelining option, and network.http.max-connections-per-server lowered to 1 to try to force it to use pipelining instead of sending the requests on multiple connections.

Even with this setting, and even after restarting the browser, it is waiting for a response from my server before it sends a second request, as verified with a packet sniffer - the pipelining option does nothing!

I tried with chrome, opera, and IE7, and none of those browsers pipelines the requests either.

Did firefox pipelining work in a previous version and they disabled it because it was problematic? FWIW the option in firefox 3 does nothing.
 
Originally posted by: Quiksilver
Pipelining works for me. Perhaps there is something wrong with your code?
Click to expand...

How do you know that it "works"?

The pages from my server load fine with network.http.pipelining = true in Firefox. That is not the issue.

The issue is, as far as I can tell, Firefox is NOT pipelining the requests, nor is any other browser. I created a page with a bunch of images & iframes coming from the same server to try to trigger the pipelining, no dice. If I limit it to one connection per server, it waits for the servers response to the 1st request before it sends a 2nd request, and waits for the response to the 2nd request before it sends a 3rd one.

Can you confirm that you see multiple requests on the same connection before the server responds to the first request with a network sniffer?

 
Finally found something that does it:
Polipo proxy pipelines the requests.
Firefox 3, Opera, & the Proximitron proxy do not, despite claims otherwise all over the net.

I should note, Proximitron proxy ends up faster because it opens a huge # of connections, which in most cases is better than pipelining.
 
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