Enhanced CPU when displaying multiple feeds one at a time and then publish
Hi all
We see CPU the Flash Player "pawls" slightly higher process whenever a user displays a new webcam stream, one at a time in a WebcamSubscriber.
For example, I look at the feed for the user, then this flow is removed and I then watch the streams for user B, then this flow is removed and I watch the stream A, B or C and so on. It seems 'ratchet' more of the same amount regardless of if I saw the flow of this particular user before.
It is only a few percentage points of use of the processor every time, but on the whole, it can get to 100% usage and crash the flash player quickly.
-We managed to contain if this happens only when the user publishes.
-If a user has looked for a long time without publication, then began to publish, the CPU usage suddenly will be dope as soon as they start the publication. During our tests it stings as much and more as if they had published all the time.
-If the user starts the publication before you start watching, they are not affected by this pic.
-If a user starts editing but did not follow the water courses, the edition CPU usage is normal.
-Refresh the browser page and publish again, the CPU usage is normal.
-L' call system.GC(); While running in the debugger flash player seems to have no effect on the peaks of the processor. All streams are maintained around must still have something pointing at them, so they will not be garbage-collected.
To subscribe to each successive flow, we who do by defining
webcamSubscriber.publisherIDs = [newStreamID];
We have been experienced for a long time with different parameters that could reduce the CPU spikes and ratchet effect, but have not been able to solve the problem.
How to prevent this CPU and the spking ratchet effect?
Thank you very much
-Trace
Hi, Trace,
As Arun alluded to, we found a bug in publisherIDs that, now that we
He fixed, seems to mitigate the issue significantly. It stubbornly when
you delete and re-create a webcamSubscribers, which we are looking into.
You can try the swf arun published? What we see is that
takes a big (100 +) clicks to get to 100% and awaits a little will be
often so clean (we saw him bounce back to 100% + 10%).
Try the swf and let us know if you see similar differences. We are not
entirely done yet, but it's certainly much better at this end.
Thank you
Nigel
Tags: Adobe LiveCycle
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