Editando! Después de dos días grabando para el canal de Youtube de #juncotic, y para el curso de Hardening Linux, tocó el moment de editar.
Pronto nuevo video en el canal!
¿Que no se han suscrito todavía? 👇
#juncotic #gnu #linux #video #clase #educacion #curso #youtube #tmpfs #hardening #optimization
Sigo jugando con la memoria en #linux 😃
En un sistema con 16GiB de RAM he configurado un mountpoint con #tmpfs para la cache de #firefox.
En otro sistema, con 8GiB de RAM, he configurado un mountpoint con #zram para la cache de #brave, porque la memoria es más escasa.
Por el momento ambos van súper fluidos!
Lo voy a testear, y luego sacaré mis conclusiones, y publicaré resultados en el blog de #juncotic y en el canal de youtube.
Por si quieren sumarse 👇
In NixOS, the sandbox feature during builds ensures reproducibility by isolating the build process from the host system. The Filesystem Hierarchy Standard (FHS) is generally not followed by NixOS natively, as everything is stored in the /nix/store with symlinks for compatibility, which can cause issues for programs expecting a standard FHS layout. The TMPDIR environment variable is relevant to how applications handle temporary files, and its behavior can differ between the default system environment and specific Nix shells.
Sandboxing and FHS
Sandboxing The Nix package manager strictly sandboxes package builds to guarantee that the resulting package is reproducible and only depends on specified inputs. This isolation means the build environment is a minimal, clean slate, preventing access to most host system files or non-declared dependencies.
TMPDIR environment variable specifies where an application should create temporary files. Its interaction with the Nix sandbox and FHS environments can lead to issues:
Default Behavior On a standard NixOS system, TMPDIR might not be set by default in the global system environment.
/* Create a writable /tmp in the chroot. Many builders need
this. (Of course they should really respect $TMPDIR
instead.) */
#nixos sandbox #tmpfs
https://github.com/NixOS/nix/blob/340f831ebe9d74659b84667b96251b7ab0edd09d/src/libstore/build/local-derivation-goal.cc#L609-L614
besides #lix has something tempting for everyone including nixos
https://github.com/NixOS/nix/issues/13462#issuecomment-3137584843
Spotify taking too much disk space? Here's how to fix Spotify cache bloat using tmpfs (RAM) on Debian and Ubuntu Linux.
Step-by-Step Guide: https://ostechnix.com/move-spotify-cache-tmpfs-debian-ubuntu/
Why #GIMP #AppImage #crashes on #Linux then trying to export / #save files to #tmpfs? A #bug ?
Diego Córdoba 🇦🇷
HoldMyType
OSTechNix
Sami Lehtinen/tmp/.mount_GIMP-3ChpMMA/usr/lib/x86_64-linux-gnu/gimp/3.0/plug-ins/script-fu/script-fu: fatal error: GIMP crashed
(script-fu:34154): LibGimp-WARNING **: 13:15:26.695: script-fu: gimp_flush(): error: Broken pipe
fish: Job 1, 'GIMP-3.0.4-x86_64.AppImage --ve…' terminated by signal SIGSEGV (Address boundary error)
After some testing, and getting crazy about it, I debugged moar. It seems that the problem is a .json file in the tmpfs dir, it seems to crash GIMP. There’s clearly something very wrong.
Just for fun I created this file: gimp-denial-of-service-attack.json
Feel free to use that to troll colleagues. Place it is some directory they’re likely going to use with GIMP, just for lulz. - Don’t ask me, why it crashes GIMP. #json #gimp #crash
Depuis quelques mois que j'ai un ordinateur avec un peu de RAM en trop, je me suis accordé un petit luxe : monter une partition de 8Go en #tmpfs dans mon home.
J'y mets les documents temporaires de travail pour la session (téléchargements à renvoyer par mail, PDF à lire, etc.), afin de ne pas me retrouver petit à petit avec une pile de documents de plus en plus grande, vu que le contenu du dossier disparaît à chaque redémarrage de l'ordinateur.
Help? I created a #ramdisk on #openSUSE #Thumbleweed using #tmpfs and it somehow is persistent. 😳 Isn't it supposed to be "volatile", and wiped on a reboot?
My #computer remebers things it wasn't supposed to. I'm worried what else it remembers. It think it might secretely be sentient. Send help.
LXC теряли память и падали. И при чем же здесь tmpfs и journald?
Старый добрый Proxmox с его контейнерами и виртуалками - по-прежнему рабочая лошадка многих компаний. И если нарезать много-много мелких контейнеров, то может случиться, что память куда-то девается со временем, а контейнеры падают в OOM без очевидной причины. Причем не все. Причем иногда. И зачастую проще перезапустить и ехать дальше чем разбираться. А причина есть, и она оказалось довольно проста.
Parleur
Unofficial LowEndBox Bot
ioSyd
Sara Angeloni 🏳️🌈🇪🇺
Habr