11–20 of 65 posts
This list should include SerenityOS IMHO. It might not be super unique but is a truly from-scratch "common" operating system built in public, which for me at least puts it at the position of a reference of an OS of whose code one person can fully understand if they'd want to understand the codebase of a whole complete-looking OS.
And a few dozen others as well.
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I'm thinking systems designed based on the assumption that there are tens, hundreds or even thousands of processors, and design assumptions are made at every level to leverage that availability
I would love to see some examples outside of the WIMP-based UI
Oberon looks/feels strikingly different (and is _tiny_) and can be easily tried out via quite low-level emulation (and just wants some drivers to be fully native say on a Raspberry Pi)
I would love to see some examples outside of the WIMP-based UI
MercuryOS towards the bottom is pretty cool
I read through its goals, and it seems that it is against current ideas and metaphors, but without actually suggesting any alternatives.
Perhaps an OS for the AI era, where the user expresses an intent and the AI figures out its meaning and carries it out?
[1] https://www.mercuryos.com/
[2] https://news.ycombinator.com/item?id=35777804 (May 1, 2023, 161 comments)
Are there any operating systems designed from the ground up to support and fully utilize many processor systems? I'm thinking systems designed based on the assumption that there are tens, hundreds or even thousands of processors, and design assumptions are made at every level to leverage that availability
Ultimately, the OS has to be designed for the hardware/architecture it's actually going to run on, and not strictly just a concept like "lots of CPUs". How the hardware does interprocess communication, cache and memory coherency, interrupt routing, etc... is ultimately going to be the limiting factor, not the theoretical design of the OS. Most of the major OSs already do a really good job of utilizing the available hardware for most typical workloads, and can be tuned pretty well for custom workloads.
I added support for up to 254 CPUs on the kernel I work on, but we haven't taken advantage of NUMA yet as we don't really need to because the performance hit for our workloads is negligible. But the Linux's and BSD's do, and can already get as much performance out of the system as the hardware will allow.
Modern OSs are already designed with parallelism and concurrency in mind, and with the move towards making as many of the subsystems as possible lockless, I'm not sure there's much to be gained by redesigning everything from the ground up. It would probably look a lot like it does now.
I had the privilege to work as a junior operator in the 80’s, and got exposed to some strange systems .. Tandem and Wang and so on .. and I always wondered if those weird Wang Imaging System things were out there, in an emulator somewhere, to play with, as it seemed like a very functional system for archive digitalization. As a retro-computing enthusiast/zealot, for me personally it is often quite rewarding to revisi…
Are there any operating systems designed from the ground up to support and fully utilize many processor systems? I'm thinking systems designed based on the assumption that there are tens, hundreds or even thousands of processors, and design assumptions are made at every level to leverage that availability
I'm re-implementing it as a metacircular adaptive compiler and VM for a production operating system. We rewrite the STEPS research software and the Frank code [2] on a million core environment [3]. On the M4 processor we try to use all types of cores, CPU, GPU, neural engine, video hardware, etc.
We just applied for YC funding.
[1] https://github.com/smarr/RoarVM
Are there any operating systems designed from the ground up to support and fully utilize many processor systems? I'm thinking systems designed based on the assumption that there are tens, hundreds or even thousands of processors, and design assumptions are made at every level to leverage that availability
I can’t help but notice that each of these stubs represent a not-insignificant portion of effort put in by one or more humans.