[Cin] Rendering multi-threads

[Phyllis Smith]

Andrea,
GG says maybe it is something to do with permissions on the proc filesystem.
Does it use only 1 cpu when you run a small test as "root" instead of an
ordinary user?

On Sat, Jun 27, 2020 at 2:00 AM Andrea paz <gamberucci.andrea at gmail.com>
wrote:

> Render farm is OK, now. Thanks.
>
> I did some more rendering tests:
> CPU 8c/16t
> "use HW device" --> none
> Container: mp4
> codec: h264
>
> Default (none or threads=0) --> 86.5 fps
>
> [note: does not vary by changing SMP (obviously); I tried SMP=4; 8 and
> 14 with the exact same result]
>
>
> threads=8 --> 64.2 fps
>
> threads=15 --> 72.8 fps (I read somewhere that ffmpeg handles up to 15
> threads; I don't know if this is true)
>
> threads=16 --> 73.2 fps
>
> [Note: in all these tests, from Top you can see that the rendering
> starts from 1000 - 1200%, but then after about ten seconds, it goes to
> 400 - 600% until the end of the rendering.]
>
> Render farm OK: all the cores at 100% --> 170 fps
>
>
> When I compile CinGG, I use this "configure":
>
> env CUDA_PATH=/opt/cuda ./configure --without-oss  --with-cuda
> --with-single-user --with-booby
>
> maybe I need to add/take out some flags? (e.g. --prefix=/usr)
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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