[gst-devel] Time taken by gst_pad_push function

[Deepak T.Y]

Hi Ved,
  Thanks for your reply. 
The element(lets say X) where I am calling gst_pad_push(), pumps data
to next element. Untill gst_pad_push returns back, element X doesn't 
start processing for the next push. Effectively my gstreamer pipeline 
has become sequential.

1. Currently I dont have any "queue" element in my pipeline.
Will it help If I introduce "queue" between every element in my pipeline?

2. I guess my pipeline is a downstream one. Will it the performance of
my application improve if I make it upstream?


With Regards,
Deepak T Y


-----Original Message-----
From: ved kpl [mailto:ved.kpl at gmail.com]
Sent: Fri 1/16/2009 12:41 PM
To: Discussion of the development of GStreamer
Subject: Re: [gst-devel] Time taken by gst_pad_push function
 
Hi,

That depends on the pipeline you are using. The gst_pad_push()  by the
element COULD BE chained right upto downmost element, resulting in
gst_pad_push() by the element eventually calling _chain() of sink
element (with few elements in between).

But, why do you want to profile gst_pad_push()?

Ved

On Fri, Jan 16, 2009 at 11:51 AM, Deepak T.Y <deepakty at tataelxsi.co.in> wrote:
> Hi all,
>        I am trying to optimize my Gstreamer based application. I have a
> gstreamer pulgin
> which pushs around 35-40k data to next element in the pipeline. The
> following are my
> observations:
>
> 1. Time taken across gst_pad_push() function is around 50,000 usec. i.e
>     gettimeofday(&t1,NULL);
>     gst_pad_push(pad,buf);
>     gettimeofday(&t2,NULL);
>     Why gst_pad_push() function is taking so much time?
>
> 2. The time taken between start of gst_pad_push() and start of the chain
> function of next
>    element in the pipeline is around 4,000 usec. Compared to time taken by
> gst_pad_push()
>    to return to the calling fucnction, 4000 usec is less.
>
> Please can anyone help me in improving the timing of gst_pad_push()?
>
>
> Thanking you,
> Deepak T Y
>
>
>
>
>
>
>
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