moblin media causes 38wakeups/second @idle on a CB system

[Inuka Gunawardana]

Steps to reproduce:
1. Click media player and wait until it loads.
2. Run powertop in a different window or ssh session.
Powertop will report approximately 38wakeups/ second caused by the media player. This number should be very small

[cathyshen (cathy-shen)]

multimedia team will check this bug with kernel team.

[Halley (halley-zhao)]

I find out it is a helix engine issue.

at the begining, I think this is the bug that there is a timer in Moblin-media to do Pump.
after I remove the Pump from moblin-media (do it in Helix engine by g_souce_add_full()); and stop the Pump in Stop state.
however there is still many wakeup.
then I find out it is a helix engine issue.
on my dev-PC, i run a simple test case of helix player; in stop state, there is also about 120/second wakeups.
"
When player of Helix engine in PAUSE or STOP state, it will still wake up CPU with high frequency, which will lead to more power consummation.
Player of Helix engine will wake up CPU ~120times/second (either wmv stream or rm stream)
But totem will only wake up CPU ~13times/second
Any suggestion to optimize it?

In my test, I modify player/hxclientkit/test/main.cpp as following to and also as attachment:
    #if 0
        while (info.state);
    #else
        while (i++ <20);

        ClientPlayerStop(info.player);

        while (1)
        {
            sleep(900000);
        }
    #endif
"

[Halley (halley-zhao)]

https://bugs.helixcommunity.org/show_bug.cgi?id=7386

[May Xie (may-xie)]

This is dependency bug on helix, remove it from m9

[Mauri Whalen (mauri-whalen)]

This needs to be fixed. If the helix community isn't fixing this, we need to contribute back and fix it.

[Halley (halley-zhao)]

this is a big deal for helix engine/codec.

[May Xie (may-xie)]

This is suggested fix, so I move it to m10.

[craig roberts (craig-n-roberts)]

Where does this issue stand. Is it fixed?

[Halley (halley-zhao)]

after big changes of threads inside helix engine, audio, video.
this bugs has fixed after RP4MID 1.0.1.1 release.

[dandan.hong&#64;intel.com (dandan-hong)]

This bug has been fixed in RP v1.0.1.4 .So verify it and change to "Fix released".