Integral RAM Disk / Volume Building support

[Jojo-1000]

I am just going to link to my previous post about this. Essentially this is possible and I have a functioning draft coded, but it would require more work to get into a releasable state. There are other priorities right now.

Backup upload speed

About the ramdisk for temp files: I played around a bit with replacing temp files for encryption/compression/upload with in-memory buffers. In most cases this is possible, except when the backend only supports file operations, or streaming is disabled. In my tests, I didn’t see the speedup I expected (compared to SSD), but maybe that would help on systems with a hard disk and enough ram. The only struggle is deciding how big these buffers can be, to prevent running out of memory on low-ram sys…