gst-tracelib usage

[Stefan Kost]

On 12.05.2011 03:52, mingqian Han wrote:
> Thanks Stefan,
>
> You are right, I resolved the problem after I upgraded to python 2.7.
Cool!
>
> Besides, could you please tell me more about the statistics, such as:

> buffers 360 (ro 0,pre 0,dis 110,gap 0,dlt 0),
This is 360 buffers send, the next details are the flags on the buffers,
read-only, preroll, discont, gap, delta-unit

Stefan
> I do not quite understand things like ro, pre, dis, gap, dlt.
>
> Thanks again!
>
> Rafael
>
> > Date: Wed, 11 May 2011 17:14:55 +0300
> > From: ensonic at hora-obscura.de
> > To: gstreamer-devel at lists.freedesktop.org
> > Subject: Re: gst-tracelib usage
> >
> > On 11.05.2011 06:31, mingqian Han wrote:
> > > Hi all,
> > > I am now trying to use gst-tracelib to profile gstreamer performance
> > > on TI Dm365.
> > > After several trials, it works.
> > > But I meet a problem with the log.
> > > When I use ./gsttl_splitlog.py gsttl.log, it fails, saying :
> > > AttributeError: 'str' object has no attribute 'partition'
> > < br>> Your python seems a bit dated. This was added in python 2.5.
> > http://docs.python.org/library/stdtypes.html#str.partition
> >
> > Copy the log from the device to your laptop and run gsttl_splitlog.py
> > and other post-processing there. Its anyway a good idea to run only the
> > capture on the device.
> >
> > Stefan
> >
> > >
> > > my log file looks like:
> > > get_caps 0:00:01.542899375 1.542899 0 v4l2source_src
> > > mallinfo 0:00:01.542899375 1.542899 3796992 1261568 3765720 31272
> > > mallinfo 0:00:01.612360084 1.612360 3932160 1261568 3776576 155584
> > > get_caps 0:00:01.613437375 1.613437 1 videoinputfilter_sink
> > > mallinfo 0:00:01.613437375 1.613437 3911680 1261568 3776840 134840
> > > mallinfo 0:00:01.616136167 1.616136 3911680 1261568 3776904 134776
> > > msg_structure-change 0:00:01.618435834 1.618436 0 v4l2source
> > > mallinfo 0:00:01.618435834 1.618436 3911680 1261568 3766176 145504
> > > mallinfo 0:00:01.620666834 1. 620667 3911680 1261568 3766200 145480
> > > msg_structure-change 0:00:01.683715542 1.683716 0 v4l2source
> > > mallinfo 0:00:01.683715542 1.683716 3911680 1261568 3766464 145216
> > > mallinfo 0:00:01.686293168 1.686293 3911680 1261568 3765912 145768
> > > get_caps 0:00:01.687726668 1.687727 2 videoinputfilter_src
> > > mallinfo 0:00:01.687726668 1.687727 3911680 1261568 3766120 145560
> > > mallinfo 0:00:01.764980293 1.764980 3911680 1261568 3766504 145176
> > > get_caps 0:00:01.766166709 1.766167 3 videoaccel_sink
> > > mallinfo 0:00:01.766166709 1.766167 3911680 1261568 3766744 144936
> > > mallinfo 0:00:01.767746834 1.767747 3911680 1261568 3766808 144872
> > > msg_structure-change 0:00:01.768862959 1.768863 2 videoinputfilter
> > > mallinfo 0:00:01.768862959 1.768863 3911680 1261568 3766552 145128
> > > ma llinfo 0:00:01.770855251 1.770855 3911680 1261568 3766568 145112
> > > msg_structure-change 0:00:01.847549875 1.847550 2 videoinputfilter
> > > mallinfo 0:00:01.847549875 1.847550 3911680 1261568 3766832 14 4848
> > > mallinfo 0:00:01.849411209 1.849411 3911680 1261568 3766288 145392
> > > get_caps 0:00:01.850398709 1.850399 4 videoaccel_src
> > >
> > >
> > > Besides, I need help on interpreting the statistics.
> > > For example,
> > > Pad Statistics:
> > > > tivideorate0_src : buffers 360 (ro 0,pre 0,dis 110,gap 0,dlt 0),
> > > size (min/avg/max) ......./ 829440/......., time 0:00:42.713248790,
> > > bytes/sec 6990767.699925
> > > < videoinputqueue_sink : buffers 0 (ro 0,pre 0,dis 0,gap 0,dlt 0),
> > > size (min/avg/max) 4294967295/ 0/ 0, time 0:00:00.000000000,
> bytes/sec nan
> > > < appsink_sink : buffers 0 (ro 0,pre 0,dis 0,gap 0,dlt 0), size
> > > (min /avg/max) 4294967295/ 0/ 0, time 0:00:00.000000000, bytes/sec nan
> > > > videoinputfilter_src : buffers 1110 (ro 1110,pre 0,dis 370,gap 0,dlt
> > > 0), size (min/avg/max) ......./ 829440/......., time
> > > 0:00:44.444906708, bytes/sec 20715048.544230
> > > > ticlockoverlay_src : buffers 361 (ro 0,pre 0,dis 110,gap &nbs p;
> > > 0,dlt 0), size (min/avg/max) ......./ 829440/......., time
> > > 0:00:43.162948999, bytes/sec 6937149.730129
> > > > titextoverlay_src : buffers 361 (ro 0,pre 0,dis 110,gap 0,dlt 0),
> > > size (min/avg/max) ......./ 829440/......., time 0:00:43.104183585,
> > > bytes/sec 6946607.384630
> > > > videotee_src2 : buffers 361 (ro 0,pre 0,dis 110,gap 0,dlt 0), size
> > > (min/avg/max) ......./ 829440/......., time 0:00:43.068566417,
> > > bytes/sec 6952352.142416
> > >
> > > Element Statistics:
> > > GstQueue:osdqueue ; : buffers in/ou t 362/ 361 bytes in/out 300257280/
> > > 299427840 first activity 0:00:06.126533002, ev/msg/qry sent 6/ 7/ 0
> > > GstTextOverlay:titextoverlay : buffers in/out 361/ 361 bytes in/out
> > > 299427840/ 299427840 first activity 0:00:07.294452794, ev/msg/qry sent
> > > 6/ 5/ 0
> > > GstTee:videotee : buffers in/out 361/ ; 1081 bytes in/out 299427840/
> > > 896624640 first activity 0:00:07.366531001, ev/msg/qry sent 6/ 9/ 0
> > > GstGhostPad:sink : buffers in/out -/ 361 bytes in/out -/ 299427840
> > > first activity 0:00:07.416145126, ev/msg/qry sent 0/ 0/ 0
> > >
> > > What do these different columns mean?
> > >
> > > Thanks in advance.
> > >
> > > Rafael
> > >
> > >
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