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-m...@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-m...@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
