[Cin] my rendering is really slow

[gorge rankin]

ok, built it, but same issue, very slow.

On Fri, Jul 16, 2021 at 2:45 AM gorge rankin <nonoobspam at gmail.com> wrote:

> I'm building cin now as I type this.
>
> I just saw this when it was building ffmpeg,
> clang: warning: Unknown CUDA version. cuda.h: CUDA_VERSION=11030. Assuming
> the latest supported version 10.1 [-Wunknown-cuda-version]
>
> Maybe my CUDA is too new?
>
> On Thu, Jul 15, 2021 at 1:26 PM Andrew Randrianasulu <
> randrianasulu at gmail.com> wrote:
>
>>
>>
>> On Thursday, July 15, 2021, gorge rankin via Cin <
>> cin at lists.cinelerra-gg.org> wrote:
>>
>>> I've only been using cin for about 3 months.  I could have sworn I
>>> tested the render speed vs others and was happy.  This is just odd.
>>>
>>
>> may be some library/driver was updated system-wide...?
>>
>>
>>>
>>> I've tried the render farm idea as well.  Sometimes tho, I get an empty
>>> file.  Don't know why.  So I'm gun shy to try it for this project where I
>>> have 3 hours estimated, it's only 15 minute video, ugh.
>>>
>>
>> yeah, emoty files for renderfarm-locally sounds like bug. I think I run
>> into some odd behavior when I was playing locally (on arm/termux) with
>> renderfarm. Try to increase number of pieces for each job and timeout, too?
>> in preferences...
>>
>>
>>>
>>> There are no errors at all printed to the console if I launch cin from
>>> the terminal.
>>>
>>
>>
>>  odd...
>>
>>>
>>> The nvidia settings do show that about 5-8% load.  I'm used to seeing
>>> that at 50-60% in other editors and also in OBS.
>>>
>>
>> what setting you have for "Use HW device" in preferencies->performance?
>> only affect decoding.. What video outputt driver setting in Cin you use?
>>
>>>
>>> I know my pc is not "new" and the "fastest" but it would be faster if I
>>> were to make the compositor borderless and record that with OBS.
>>>
>>
>>
>> due to lack if hw encoding accel in termux (on android) I record with
>> system's  recorder, so this is... workaround...
>>
>>>
>>> It's really odd, the compositor isn't dropping any frames whatsoever.
>>> All my effects look *awesome * in the compositor.  The app is running
>>> awesome.  I've not had a crash at all.
>>>
>>
>> good, but slow encoding still a problem..
>>
>>
>>>
>>> On Thu, Jul 15, 2021 at 8:32 AM Andrea paz via Cin <
>>> cin at lists.cinelerra-gg.org> wrote:
>>>
>>>> Lately many people are experiencing performance problems in encoding,
>>>> I am one of them. I think the cause is the lack of multithreading in
>>>> encoding (but also decoding in timeline).
>>>
>>>
>>>>
>>>>
>>>>
>> you can try to add printf("ff_cpus: %i, \n", ff_cpus) ; to few places in
>> cinelerra/ffmpeg.C and see if it was dropping down to 1 or 0 somewhat? as
>> crude hack you can force it to your number of threads....
>>
>>
>>
>> $ cat cinelerra/ffmpeg.C | grep ff_cpu
>>                                         avctx->thread_count =
>> ffmpeg->ff_cpus();
>>                         ctx->thread_count = ff_cpus();
>> int FFMPEG::ff_cpus()
>>                 avctx->thread_count = ff_cpus();
>> $
>>
>>
>>>
>>>>
>>>>  A rendering done with
>>>> external ffmpeg from command line is much more efficient than the same
>>>> rendering done in CinGG (always using ffmpeg).
>>>> No fix has been found, only a workaround that makes use of the Render
>>>> Farm:
>>>>
>>>>
>>>> https://cinelerra-gg.org/download/CinelerraGG_Manual/Render_Farm_Usage.html
>>>>
>>>> Lately the user fary54 has made available his script to automate the
>>>> use of the render farm and external ffmpeg. Above all it is suitable
>>>> for CPUs with many threads. You can find the script and explanations
>>>> here:
>>>>
>>>> https://www.cinelerra-gg.org/bugtracker/view.php?id=575
>>>> --
>>>> Cin mailing list
>>>> Cin at lists.cinelerra-gg.org
>>>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>>>
>>>
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