Whatever RAM you dedicate to a RAM drive will be taken away from system RAM, which may degrade performance. You may be trading off one bottleneck for another. But, I suppose, the only way to find out is to try it.
With that much RAM in the machine, Windows will automatically dedicate a significant amount of it for drive caching anyway.
There is no point in creating a dedicated RAM drive, IMHO.
I have a SSD drive sitting somewhere I could use as a transcoding directory. Is there a decent way to run some transcoding benchmarks via command line with plex?
I have a 20GB RAM disk that I use for the cache. The default directory for the cache was normally on 15,000 RPM hard drives - which are already fast… but the one improvement I believe I noticed was the filling in of the artwork when I scroll through the listings. It could be all in my head - but I rarely see the temporary image before the artwork loads now.
My cache is currently using about 12GB of that space.
I’m using Ubuntu - so it’s just a Ramdisk mount… I don’t believe I installed anything special - just had to change my config. I looked on SourceForge for ImDisk - and it appears to be what you want - and seems to have been updated recently.
My server has 32GB of RAM, but I’ve allocated 20GB of that to the RAMDISK. Ubuntu has a low memory overheard, so it was otherwise wasted memory.