Many crashes when rendering

[Narcis Garcia]

Kdenlive should detect melt crash and trigger a message «Not enough 
memory to continue render».


El 14/5/24 a les 6:18, B.M. ha escrit:
> Wow, you've been absolutely right: with more swap space, everything 
> rendered
> 
> fine last night :-)
> 
> 
> Lesson learned: rendering 4K source clips to 4K needs more RAM then 
> rendering
> 
> the same clips to QHD/2.5K...
> 
> 
> Have a nice day,
> 
> Bernd
> 
> 
> 
> On Montag, 13. Mai 2024 19:28:52 CEST Evert Vorster wrote:
> 
>  > I have 64Gb ram, and 100Gb swap file. 4K footage is big.
> 
>  >
> 
>  > I still don't know why Kdenlive can't just unload video clips it has not
> 
>  > used in a while, or if there is memory pressure. Reading from swap is
> 
>  > exactly as fast as reading the original from disk.
> 
>  >
> 
>  > On Mon, May 13, 2024, 17:42 B.M. <b-misc at gmx.ch> wrote:
> 
>  > > Might be - I already had a swapfile of 8 GB size in place which I 
> use when
> 
>  > > rendering for many years. (RAM is 16 GB.) But: I used to render to QHD,
> 
>  > > now
> 
>  > > I'm rendering to 4K UHD, so maybe I need more swap space then before. I
> 
>  > > just
> 
>  > > added another 8 GB swapfile, will see if this helps!
> 
>  > >
> 
>  > > On Montag, 13. Mai 2024 18:22:01 CEST you wrote:
> 
>  > > > Hi there!
> 
>  > > >
> 
>  > > > Keep an eye on memory usage when rendering. It may be that you are
> 
>  > >
> 
>  > > running
> 
>  > >
> 
>  > > > out of ram, and then Kdenlive falls victim to the oom killer. One way
> 
>  > > > around it is to make a huge swap file and in this way never run 
> out of
> 
>  > > > memory
> 
>  > > >
> 
>  > > > On Mon, May 13, 2024, 17:07 B.M. <b-misc at gmx.ch> wrote:
> 
>  > > > > Hi
> 
>  > > > >
> 
>  > > > > I'm currently trying to get a finished project out of kdenlive 
> (latest
> 
>  > > > > version,
> 
>  > > > > appimage), and I see frequent crashes (without any reason for me).
> 
>  > > > >
> 
>  > > > > Basically, I split the project into several sequences and try
> 
>  > > > > rendering
> 
>  > > > > them
> 
>  > > > > independently. Due to the crashes I started also rendering 
> sequences
> 
>  > > > > in
> 
>  > > > > several parts (regions).
> 
>  > > > >
> 
>  > > > > The problem is:
> 
>  > > > > With each crash I also loose my render queue. Which is really 
> bad if
> 
>  > > > > crashes
> 
>  > > > > happen at night, loosing also hours of potential rendering... I 
> mean,
> 
>  > >
> 
>  > > I'm
> 
>  > >
> 
>  > > > > trying to render about 1 h of 4K movie on a ~10 year old machine (1
> 
>  > > > > fps...)
> 
>  > > > >
> 
>  > > > > In order to get rid of the "one kills all" dependency I'd like 
> to use
> 
>  > > > > render
> 
>  > > > > scripts. But how is this possible (or is it possible at all) 
> with an
> 
>  > > > > kdenlive
> 
>  > > > > appimage?
> 
>  > > > >
> 
>  > > > > Thanks for your help.
> 
>  > > > >
> 
>  > > > > Bernd
> 
> 
> 

-- 

Narcis Garcia

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