On Friday, December 3, 2021, Andrea paz <[email protected]> wrote:
> Using the same AV1 videos but in HD resolution instead of FullHD, I > don't have any problems or even slowdowns in playback and reverse > playback. I tried both using the 2 exports and "--disable-dav1d" and > without these configurations: all is fine in both cases. > Anyway, my VM has always been set up with 8GB of RAM (out of 32 > physical) and 4c/8t for the CPU (out of 8c/16t physical), but > apparently that's not enough to support FullHD. may be problem with 32-bit case is limited _virtual_ address space - no more than 4gb, and some of it eaten by kenel mapping pci devices and such. Ironically so-called PAE linux kernel can address more physical ram than 4gb, yet individual processes limited to some 3gb... or even less (depend on kernel configuration, vm_split I think...) > > On my system (Arch Linux 64-bit; KDE), I've tried compiling just the > patch (without export and --disable-dav1d) and it works without > problems. However, with FullHD videos, playback is smooth but reverse > playback has some framerate drops. > > Sorry for wasting your time behind false problems. > well, they not false just rare (due to limited 32-bit testing). Not like we can do much about memory exhausting errors.. but this might deserve some footnote.
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