Re: [Discuss-gnuradio] a criticism to GNURadio's scheduler!

[Marcus Müller]

Hi Mostafa,
On 01.06.2014 19:23, Mostafa Alizadeh wrote:
> This is not true because when I produce 1-3 packet of bits, the
> scheduler doesn't go to the other blocks while there is items for
> them! The scheduler calls the random bit generator for about 10 times!!
I have tried that, and can disprove by example. My python code is under
[1], feel free to test and modify.
It generates timestamped output:

>21.341874 src: sleeping
>22.342275 src: producing 3 items, 0 total so far
>22.342600 src: sleeping
>22.342774 sink: got 3 items, total 0 so far

>23.343531 src: producing 3 items, 3 total so far
>23.343843 src: sleeping
>23.344011 sink: got 3 items, total 3 so far

As you can see, the items that got produced are being processed *the
same millisecond* the sources'  work finishes.

My source sleeps a second, then produces three items.
Maybe there's a block downstream that needs bigger multiples of inputs
than single bytes?

Greetings,
Marcus

[1] https://github.com/marcusmueller/gr-trickling_items ; a GRC demo
flowgraph is under examples/