systemd-swap
nohang
| systemd-swap | nohang | |
|---|---|---|
| 6 | 29 | |
| 550 | 995 | |
| - | - | |
| 0.0 | 4.3 | |
| over 2 years ago | 3 months ago | |
| Python | Python | |
| GNU General Public License v3.0 only | MIT License |
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systemd-swap
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I want to change my zRAM compression algorithm to zstd on openSUSE Tumbleweed
As a bonus, the systemd-zram-service's scripts will create zRAM devices based on the number of your CPU cores. This is problematic as it's a deprecated practice, and can also cause an issue on some multicore CPUs. Basically, we already have "multi stream functionality" since kernel 3.15. And since kernel 4.7, regardless of the value passed to [max_comp_streams], zRAM will always allocate multiple compression streams - one per online CPU - thus allowing several concurrent compression operations.
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What happens when there is no more swap partition is full and RAM is full? Does Linux swaps anyway in some other way (maybe swap files like Windows), or can't it swap anymore?
Historically, Linux has created an additional (fixed-size) swap partition or file. In case you mention you get OOM. But for some time there is a great project systemd-swap creating hybrid swap space. You can even find it in the official Arch Linux Community repo.
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PERSONAL OPINION: /Swapfile or Swap Partition?
There is also systemd/zram-generator that allows you to create and manage swap devices more easily. And Nefelim4ag/systemd-swap (abandoned?) that automatically creates swap files and resizes them based on RAM usage.
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Do I need to create a swap partition?
SwapFC - https://github.com/Nefelim4ag/systemd-swap
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A warning about 5.12-rc1
That sound like what systemd-swap does. Apparently, hibernation is not quite working yet, though.
https://github.com/Nefelim4ag/systemd-swap
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Can I mix zram with swapfc?
Disclaimer: I couldn't find anything relating to SwapFC other than from the README of systemd-swap. What I've written above is just based on the one-line description of SwapFC, as well as prior knowledge of zswap and zram (obtained from the Linux Kernel docs).
nohang
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There is an oom kill count in Linux
For desktop use, nohang does what the name says.
https://github.com/hakavlad/nohang
- Rare question
- Zswap vs zram in 2023, what's the actual practical difference?
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Why is systemd-oomd still a thing
Personally I thought https://github.com/hakavlad/nohang worked pretty well, and it'll also notify the user if it's about to start killing things, but I haven't bothered to install it in fedora. I did tweak the systemd-oomd config to be less aggressive though.
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Arch linux randomly freezes, especially when playing a youtube video or performing other video-related workload
SOLUTION: After struggling with this nightmarish unpredictable kernel panic for two weeks, I confirmed nohang is capable of stopping this problem for real.
- Hakavlad / nohang – A sophisticated low memory handler for Linux
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Релиз ядра Linux 6.1
посмотри https://github.com/hakavlad/nohang/issues/122
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How do i install packages in ZORIN OS
I'm trying to install this app called " nohang" for memory problems. https://github.com/hakavlad/nohang i wasn't sure which type zorin is based on.
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Am I doing RAM wrong?
Thanks. Looking into this as well. Further digging in this sub over the past couple days have brought up earlyoom as well as https://github.com/hakavlad/nohang as interesting things to pursue.
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Distro with best ram management on 8gb of memory?
Sounds like the complaints indicated on nohang's repo. I also have low memory. nohang and zram make mine work better than macs/wins with higher memory.
What are some alternatives?
btrfs-progs - Development of userspace BTRFS tools
earlyoom - earlyoom - Early OOM Daemon for Linux
TempOSD - On Screen Display for cpu and gpu temperatures, ram and swap usages statistics.
oomd - A userspace out-of-memory killer
uniswap-sushiswap-arbitrage-bot - Two bots written in JS that uses flashswaps and normal swaps to arbitrage Uniswap. Includes an automated demostration.
Ananicy - Ananicy - is Another auto nice daemon, with community rules support (Use pull request please)
zram-generator - Systemd unit generator for zram devices
Ananicy Cpp - A full, event-based rewrite of Ananicy made in C++ for better performance.
snapper-gui - GUI for snapper, a tool for Linux filesystem snapshot management, works with btrfs, ext4 and thin-provisioned LVM volumes
prelockd - Lock executables and shared libraries in memory to improve system responsiveness under low-memory conditions
swap - Cross-chain atomic swap between the networks of two cryptocurrencies based on Hash Time Lock Contracts (HTLCs) protocol.
le9-patch - [PATCH] mm: Protect the working set under memory pressure to prevent thrashing, avoid high latency and prevent livelock in near-OOM conditions