earlyoom
nushell
earlyoom | nushell | |
---|---|---|
60 | 214 | |
2,749 | 30,332 | |
- | 2.5% | |
8.6 | 9.9 | |
9 days ago | 5 days ago | |
C | Rust | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
earlyoom
- Earlyoom – Early OOM Daemon for Linux
- Fedora Workstation 39
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earlyoom VS thrash-protect - a user suggested alternative
2 projects | 12 Oct 2023
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Linuxatemyram.com
> The system is not supposed to 'lock up' when you run out of physical RAM. If it does, something is wrong. It might become slower as pages are flushed to disk but it shouldn't be terrible unless you are really constrained and thrashing. If the Kernel still can't allocate memory, you should expect the OOMKiller to start removing processes. It should not just 'lock up'. Something is wrong.
I don't why but locking up is my usual experience for Desktop Linux for many years and distros, and I remember seeing at least one article explaining why. The only real solution is calling the OOMKiller early either with a daemon or SysRq.
> It should not take minutes. Should happen really quickly once thresholds are reached and allocations are attempted. What is probably happening is that the system has not run out of memory just yet but it is very close and is busy thrashing the swap. If this is happening frequently you may need to adjust your settings (vm.overcommit, vm.admin_reserve_kbytes, etc). Or even deploy something like EarlyOOM (https://github.com/rfjakob/earlyoom). Or you might just need more RAM, honestly.
Yeah. Exactly. But as the thread says, why aren't those things set up automatically?
- OOM still a disaster zone
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Fedora spins
It's not that simple: some defaults may differ, and some features may arrive at different times (if ever). For example, earlyoom has been enabled on Workstation since F32, but the KDE Plasma spin got it one release later.
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So what exactly do I do if Linux crashes?
Most answers will answer your question, but you can do better and avoid the freezes in the first place. IME almost every time the system froze up and didn't come back in a few seconds it was out of memory. The obvious solution is to add memory, but you can use Early OOM to kill hungry processes if you're running out of memory instead.
- Why is there no reliable way to receive signal when OOM killer decides to kill you
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What do you do when Linux becomes unresponsive (in a frozen state,mouse clicks or keyboard doesn't work)
It sounds like you're running out of memory though, so if your OS's OOM killer isn't working as well as it should, you can try earlyoom as an alternative.
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Linux Desktop Environments System Usage (Gnome, KDE, XFCE, LXQT, Cinnamon, Mate)
Swap is indeed supposed to prevent this AFAIK. You can though try some tools like EarlyOOM and see if it helps : https://github.com/rfjakob/earlyoom
nushell
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Exploring Nushell, a Rust-powered, cross-platform shell
The first method is through downloading the pre-built binaries. With this method, you don't need to install anything other than Nushell's dependencies. Once you've downloaded the binaries, add them to your system's environment path to run it directly in your terminal.
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PowerShell: The object-oriented shell you didn't know you needed
I rather nushell for this purpose, it's more fun to write and easier to read.
https://www.nushell.sh/
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NuShell - Ceci n'est pas une |
These are just three small examples of what this shell written in Rust allows. The features are many and many more, but I'll leave it up to you to discover and enjoy them; I'm currently playing around with it and it's giving me a lot of satisfaction and immediacy, now it has a fixed place among the tools I use when working! The project is Open Source, so if you want to contribute, I invite you, as always, to do so, I leave you the link to the repo here!
- Xonsh: Python-powered, cross-platform, Unix-gazing shell
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Fish shell 3.7.0: last release branch before the full Rust rewrite
Any thoughts on fish as compared to nushell [0]? It's similar to PowerShell in its philosophy and is also written in Rust.
[0] https://github.com/nushell/nushell
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jc: Converts the output of popular command-line tools to JSON
> In PowerShell, structured output is the default and it seems to work very well.
PowerShell goes a step beyond JSON, by supporting actual mutable objects. So instead of just passing through structured data, you effectively pass around opaque objects that allow you to go back to earlier pipeline stages, and invoke methods, if I understand correctly: https://learn.microsoft.com/en-us/powershell/module/microsof....
I'm rather fond of wrappers like jc and libxo, and experimental shells like https://www.nushell.sh/. These still focus on passing data, not objects with executable methods. On some level, I find this comfortable: Structured data still feels pretty Unix-like, if that makes sense? If I want actual objects, then it's probably time to fire up Python or Ruby.
Knowing when to switch from a shell script to a full-fledged programming language is important, even if your shell is basically awesome and has good programming features.
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Ripgrep is faster than {grep, ag, Git grep, ucg, pt, sift}
Maybe if the "popular" shells, but http://www.nushell.sh/ is looking better and better
- "<ESC>[31M"? ANSI Terminal security in 2023 and finding 10 CVEs
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jq 1.7 Released
Yeah agreed, especially now that PowerShell is available cross-platform.
Nushell[1] also seems like a promising alternative, but I haven’t had a chance to play with it yet.
[1]: https://www.nushell.sh/
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The Case for Nushell
I also discovered an existing discussion[1] related to this topic which includes a link[2] to a "helper to call nushell nuon/json/yaml commands from bash/fish/zsh" and a comment[3] that the current nushell dev focus is "on getting the experience inside nushell right and [we] probably won't be able to dedicate design time to get the interface of native Nu commands with an outside POSIX shell right and stable.".
[0] https://gitlab.com/RancidBacon/notes_public/-/blob/main/note...
[1] "Expose some commands to external world #6554": https://github.com/nushell/nushell/issues/6554
[2] https://github.com/cruel-intentions/devshell-files/blob/mast...
[3] https://github.com/nushell/nushell/issues/6554#issuecomment-...
What are some alternatives?
oomd - A userspace out-of-memory killer
fish-shell - The user-friendly command line shell.
nohang - A sophisticated low memory handler for Linux
elvish - Powerful scripting language & Versatile interactive shell
systemd - The systemd System and Service Manager
starship - ☄🌌️ The minimal, blazing-fast, and infinitely customizable prompt for any shell!
darling - Darwin/macOS emulation layer for Linux
PowerShell - PowerShell for every system!
XMousePasteBlock - Userspace tool to disable middle mouse button paste in Xorg
alacritty - A cross-platform, OpenGL terminal emulator.
le9-patch - [PATCH] mm: Protect the working set under memory pressure to prevent thrashing, avoid high latency and prevent livelock in near-OOM conditions
xonsh - :shell: Python-powered, cross-platform, Unix-gazing shell.