Comments on: Testing IE8’s Connection Parallelism http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/ A blog by Ryan Breen of Gomez Sat, 11 Oct 2008 17:14:06 +0000 http://wordpress.org/?v=2.5.1 By: Ryan Breen http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-60889 Ryan Breen Mon, 09 Jun 2008 12:15:31 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-60889 Mark, Being wrong made me think there was a limit to concurrent connections. It's a longstanding misconception I had, but it has since been corrected. The only limit is per host. I don't see any issues with my test pages. I have intermittent problems with dreamhost, but everything appears to be functional now. Mark,

Being wrong made me think there was a limit to concurrent connections. It’s a longstanding misconception I had, but it has since been corrected. The only limit is per host.

I don’t see any issues with my test pages. I have intermittent problems with dreamhost, but everything appears to be functional now.

]]> By: Mark http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-60774 Mark Mon, 09 Jun 2008 07:52:10 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-60774 What makes you think WinINET has any limit to concurrent connections at all? your test pages are broken, btw. What makes you think WinINET has any limit to concurrent connections at all?

your test pages are broken, btw.

]]> By: Biondi Tang http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-51336 Biondi Tang Wed, 21 May 2008 06:27:44 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-51336 I used IE8 getting the same page at http://demo.ajaxperformance.com and saw a quite different graph in Page Detailer. The number of parallel connections started from 3 in the first round, 5 the second, 9 the third, and another 9 the fourth, for the total of 26 images. While running in IE7 Emulate mode, a different graph with 6, 6, 4, 4, 6 parallel connections in 5 rounds. I think there might be some other factors affecting the result such as file size, internet connection bandwidth, local cache...etc. I was considering to use "web accelerator" appliance that do the same job by layer 7 protocol. It seems that this "multi-connect" acceleration will be replaced by next version of browsers. Any similar case to share? I used IE8 getting the same page at http://demo.ajaxperformance.com and saw a quite different graph in Page Detailer. The number of parallel connections started from 3 in the first round, 5 the second, 9 the third, and another 9 the fourth, for the total of 26 images.

While running in IE7 Emulate mode, a different graph with 6, 6, 4, 4, 6 parallel connections in 5 rounds.

I think there might be some other factors affecting the result such as file size, internet connection bandwidth, local cache…etc.

I was considering to use “web accelerator” appliance that do the same job by layer 7 protocol. It seems that this “multi-connect” acceleration will be replaced by next version of browsers. Any similar case to share?

]]> By: Steve Laniel http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39731 Steve Laniel Mon, 17 Mar 2008 12:51:20 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39731 I'm surprised the browser can't learn what the optimum number of parallel connections is, and adjust over time. That seems like an obvious next step. I wonder if other browsers will learn from this performance analysis and do IE one better. I’m surprised the browser can’t learn what the optimum number of parallel connections is, and adjust over time. That seems like an obvious next step. I wonder if other browsers will learn from this performance analysis and do IE one better.

]]> By: andrew http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39724 andrew Mon, 17 Mar 2008 11:57:59 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39724 I use Opera browser. I can set up up to 128 (!) connection per server, and up to 128 connections total. Just choose Tools-Preferences-Advanced-Network. The defaults are 8 and 20 respectivly, and I don't know why. I use Opera browser. I can set up up to 128 (!) connection per server, and up to 128 connections total.

Just choose Tools-Preferences-Advanced-Network.

The defaults are 8 and 20 respectivly, and I don’t know why.

]]> By: Pelican http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39678 Pelican Mon, 17 Mar 2008 02:30:22 +0000 http://www.ajaxperformance.com/2008/03/16/testing-ie8s-connection-parallelism/#comment-39678 Lovely article. I keep following your connection stuff and cannot believe it is 18 now..I use Gomez a lot and those numbers definitely make sense..BTW do you have any official confirmation of this from the IE team? Lovely article. I keep following your connection stuff and cannot believe it is 18 now..I use Gomez a lot and those numbers definitely make sense..BTW do you have any official confirmation of this from the IE team?

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