ram-dl – A tool to download more RAM written in Go
Hi HN! I've built ram-dl, a tool that allows you to upload and download RAM to/from your system. Run `ram-ul` to upload RAM, and `ram-dl` to download it. Well, sort of :P It works like this: 1. Starting a go-nbd server and client locally with r3map's Device API 2. Connecting the NBD server to a remote fRPC[1] backend provided by ram-ul 3. Calling mkswap, swapon and swapoff, which enables paging out to the block device provided by the NBD client and thus to the connected remote fRPC backend. Its mostly intended as a tech demo for go-nbd[2] and the WIP r3map[3] library (efficient…
In plain words
Ram-dl is a Go-based tool that enables users to extend their system's memory by uploading and downloading RAM to and from remote systems. It works by establishing a local NBD server and client that connects to a remote backend, then configures the system to page memory to this remote block device. The tool functions primarily as a technical demonstration of the go-nbd library and the r3map distributed memory-mapping library, rather than a production solution.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN! I've built ram-dl, a tool that allows you to upload and download RAM to/from your system. Run `ram-ul` to upload RAM, and `ram-dl` to download it. Well, sort of :P It works like this: 1. Starting a go-nbd server and client locally with r3map's Device API 2. Connecting the NBD server to a remote fRPC[1] backend provided by ram-ul 3. Calling mkswap, swapon and swapoff, which enables paging out to the block device provided by the NBD client and thus to the connected remote fRPC backend. Its mostly intended as a tech demo for go-nbd[2] and the WIP r3map[3] library (efficient distributed mmap with mounting and migration support), and just as a fun experiment in general. [1] https://frpc.io/ [2] https://news.ycombinator.com/item?id=35359473 [3] https://github.com/pojntfx/r3map
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