[PD] Working with Memory-Mapped File or Ramdisk

[cyrille henry]

hello,
can you elaborate about share-mem lib overhead?
I'm not aware of such problem.
cheers
Cyrille


Le 18/09/2021 à 18:43, Sebastian Lexer a écrit :
> Hi List,
> 
> I want to share memory between several instances of PD running on separate reserved cores. I've tried the share-mem lib, but it has a very high overhead.
> 
> Since I am writing custom externals for the puredata patches, I have started to include writing the data to be shared into files on a ramdisk. It does work quite nicely, but I am wondering whether some more elegant solution could be done using the Memory-Mapped Files, or are there any other simple and fast solutions around?
> 
> Has anyone on this list experience with this? I don't actually need to share large data sets, mostly it's just bytes that indicate the state of the patch. Network based solutions have proven to be too slow.
> 
> These patches will run on raspberry pi.
> 
> Thanks!
> S
> 
> 
> 
> 
> 
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