It sounds like you have some kind of problem in your tasklet. Also, 100 interrupts/sec sounds very high to me, given a typical frame rate of 30 fps. There should be a way to consolidate those interrupts so you are only generating one per frame.
On Feb 2, 8:10 pm, Manish Sharma <manishsharm...@gmail.com> wrote: > Hi Dave, > > In video driver we are not doing any major processing. It is just any > interface driver to the h/w video codec. It manages the interrupts coming > from the h/w. For decoding and display 4 interrupts are coming, 2 inputs and > 2 outputs. If we are using 25fps stream then 100 interrupts/sec. We have > disabled the h/w decoding and enabled only display then the playback is bit > improved. We are using tasklet to process the interrupts in video driver. We > have observed this is causing the issue. Any pointers? > > Thanks and Regards, > Manish > > On Tue, Feb 3, 2009 at 3:53 AM, Dave Sparks <davidspa...@android.com> wrote: > > > Are you using floating point in your codec? > > > On Feb 2, 1:42 am, Manish Sharma <manishsharm...@gmail.com> wrote: > > > Hi Dave, > > > > With software decoder this is not happening. Mostly the issue with our > > video > > > driver. > > > > Regards, > > > Manish > > > On Sat, Jan 31, 2009 at 7:06 AM, Dave Sparks <davidspa...@android.com > > >wrote: > > > > > Something is obviously generating a lot of softirq's. Does this happen > > > > when you use the software codec? > > > > > On Jan 29, 11:45 pm, Manish Sharma <manishsharm...@gmail.com> wrote: > > > > > Hi All, > > > > > > We have replaced the video decoder of PV player with our H/w video > > > > decoder > > > > > and are able to display the video. > > > > > The issue is that the playback pauses in between and progresses from > > the > > > > > same place, frequently. > > > > > For display we are using ashmem in android_output_surface.cpp file. > > > > > > With 'top' we have observed that while the video playback is paused > > > > > "ksoftirqd" CPU load goes to very high value. > > > > > Please see below. > > > > > > PID CPU% S #THR VSS RSS UID Name > > > > > 3 165% R 1 0K 0K root ksoftirqd/0 > > > > > 1539 57% S 9 26096K 6688K media /system/bin/mediaserver > > > > > 1559 15% S 29 252988K 21996K system system_server > > > > > 1596 5% S 8 99288K 16896K app_5 android.process.acore > > > > > 1696 5% R 1 900K 372K root top > > > > > 10 0% S 1 0K 0K root suspend/0 > > > > > 66 0% S 1 0K 0K root kblockd/0 > > > > > 77 0% S 1 0K 0K root kmmcd > > > > > 110 0% S 1 0K 0K root pdflush > > > > > 111 0% S 1 0K 0K root pdflush > > > > > 112 0% S 1 0K 0K root kswapd0 > > > > > 1 0% S 1 260K 172K root /init > > > > > 741 0% S 1 0K 0K root mtdblockd > > > > > 804 0% S 1 0K 0K root rpciod/0 > > > > > 1532 0% S 1 724K 316K root /system/bin/sh > > > > > 1533 0% S 1 796K 248K system > > /system/bin/servicemanager > > > > > 1535 0% S 2 1824K 340K root /system/bin/mountd > > > > > 1536 0% S 1 652K 252K root /system/bin/debuggerd > > > > > 1537 0% S 1 71020K 18668K root zygote > > > > > 1541 0% S 1 1156K 564K bluetoot /system/bin/dbus-daemon > > > > > 1543 0% S 1 788K 292K root /system/bin/installd > > > > > 1545 0% S 2 1264K 124K root /sbin/adbd > > > > > 1599 0% S 10 98372K 13944K radio com.android.phone > > > > > 1618 0% S 6 98728K 11596K app_12 com.android.mms > > > > > 1630 0% S 8 99528K 12152K app_4 android.process.media > > > > > 1643 0% S 6 94584K 10912K app_11 android.process.im > > > > > 1650 0% S 7 94496K 12700K app_3 com.android.calendar > > > > > 1661 0% S 6 92156K 11092K app_0 com.android.alarmclock > > > > > 1675 0% S 1 0K 0K root mmcqd > > > > > 1679 0% S 6 98084K 12480K app_13 com.android.music > > > > > 1686 0% S 6 101292K 14196K app_13 > > com.android.music:MovieView > > > > > Please provide if you have any input. > > > > > > Thanks and Regards, > > > > > Manish --~--~---------~--~----~------------~-------~--~----~ unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
