Slow timeline performance

Forum for questions and support relating to the 1.24.x releases only.
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td
Posts: 20
Joined: Wed Sep 27, 2006 5:56 am
Location: Breckerfeld, Germany

Slow timeline performance

Post by td »

Hello,

I have upgraded from 1.23.3 to 1.24.1 and detected a major disadvantage while using the timeline mode:
In the former versions, moving over the events in the timeline to get the correspondent pictures worked like a charme, very quickly and reliable.
Now, in 1.24.1, on the same PC, it needs several seconds for each event before the first picture is displayed.

Any ideas for the reasons or are there options to select to enhance the speed?

TD
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Normando
Posts: 219
Joined: Sun Aug 17, 2008 5:34 am
Location: Rosario - Argentina

Post by Normando »

Yes, you are right. I have the same issue.
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zoneminder
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Location: Bristol, UK
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Post by zoneminder »

The page has changed quite a lot which will have an effect. In pre-1.24 versions the timeline view was a huge page with all the event details pre-loaded in the page. In 1.24 the page is much smaller and all event details are fetched as required. Images are not affected by this as they were always loaded on demand.

The effect of these changes would be expected to be that the page would load much faster in the first place with events loading fractionally less quickly (the size of the event text is a small %ge of the size of the image itself). Indeed I am running on low bandwidth setting setting looking at my home system (512k upstream) and images typically load in around 0.5 of a second first time round (after that they are cached). Using firebug I can see that the query to get the frame details takes about 200ms round trip which is the maximum delay to load an image that would be expected. On my local machine the delay is 20ms or so.

Can you check that you have FireFox set up to allow plenty of concurrent network connections, via about:config and filter on http.
Phil
td
Posts: 20
Joined: Wed Sep 27, 2006 5:56 am
Location: Breckerfeld, Germany

Post by td »

Phil,

I think the most important settings in my Firefox are:
network.http.max-connections:30
network.http.max-connections-per-server:15
network.http.pipelining: false
network.http.pipelining.maxrequests: 4

I will play a little bit with these.

By the way, I'm using Firefox 3.0.7, seamonkey 1.1.11 an konqueror 4.2.1

TD[/img]
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