Memory leak on Firefox only

[riwang]

Hi Alessandro,

That's good to know. Thanks so much.

Richard

[riwang]

Hi Alessandro,

We are still seeing severe memory issue with our web app. If we left our app running for 24 hours, the browser (FF and IE) memory usage goes up to 1.2 GB.

To debug the memory issue, I made a few simplification to our app.

1. The LS server pushes out 200K data per second. This exacerbates the memory issue and make it more visible quicker.
2. The web app only receives the data, but not consume the data. I set table.onItemUpdate to an empty function that does nothing. This eliminates the possibility of other parts of the web app keeping references to the streamed data.

After running Firefox 3 for 30 minutes, the browser memory usage goes from 300MB to 700MB. I do have Firebug installed on the Firefox. I'm going to try IE to see how much memory it consumes.

Can you please help?

Thanks,
Richard

[Alessandro]

Hi Richard,

It is important to see what happens with that test case with Firebug disabled or on IE.
Please, let us know.

Also, may you provide us with your test code or environment, so that we can try to replicate it?

Cheers
Alessandro

[riwang]

Hi Alessandro,

My IE test shows that the browser memory does not increase over time. After I disabled Firebug, Firefox memory does not increase dramatically either.

It seems Firebug does cause serious memory leak on Firefox. I think I would show a popup to ask users to disable Firebug if the Javascript detects user's browser has Firebug installed.

Thanks,
Richard

[Alessandro]

Richard,

Thanks for confirming this.

In the next version of the Lightstreamer Web Client library, we will detect and warn about the presence of Firebug too.

Cheers,

Alessandro