Avec par ordre d’apparition : @waxzce @juuduu @keruspe @gcouprie
Des infos sur Mozilla et sa restructuration : https://twitter.com/jwajsberg/status/1295401144936738816
Et la création de la fondation Rust : https://blog.rust-lang.org/2020/08/18/laying-the-foundation-for-rusts-future.html
Cette épisode est un spécial kernel et systemd
Dans l’intro sur le low level GNU – linux – systemd
Série de blog post sur le binaire : https://twitter.com/fasterthanlime/status/1216435739157835776?s=20
Le kernel : https://kernelnewbies.org/LinuxChanges
https://linuxfr.org/tags/kernel/public
https://www.phoronix.com/scan.php?page=article&item=linux-58-features&num=1
Kernel 5.8 en condensé:
Meilleur algo de reclaim de ram / swap (LRU, refault, IO cost)
Swapiness 200
Swap perf, defrag, reclaim
Cgroup memory.swap.high
KCSAN (needs gcc/clang 11 unreleased) / KTSAN : Kernel Concurrency Sanitizer “data race detector for the kernel”
Event pipes + gnome
Virtio mem hotplug
Btw, depuis Linux 5.6 on a wireguard, le VPN le plus simple du monde : 1 algo de chiffrement, 1 algo de KEX, 1 format de clé.
Pidfd + setns
1.6. Shadow Call Stack and Branch Target Identification for improved security on ARM64
1.8. Introduce CAP_BPF and CAP_PERFMON security capabilities (Ça permet de donner accès à certaines features BPF sans donner accès à tout le reste du système.)
https://perf.wiki.kernel.org/index.php/Main_Page
http://www.brendangregg.com/blog/2019-01-01/learn-ebpf-tracing.html
https://www.youtube.com/watch?v=tDacjrSCeq4 ← shouting in the datacenter
Btrfs improvements (ENOSPC, xattr/chown pour send, repair perfs)
Ext4 ENOSPC race
io_uring
https://github.com/cloud-hypervisor/cloud-hypervisor/releases/tag/v0.9.0
POWER10
Private procfs instances
Inline encryption for block devices
Systemd 246:
https://lwn.net/Articles/827675/
Cgroup freezer (unit suspend)
Cpuaffinity numa (expliquer numa ? en gros, on choisit ses cœurs cpus pour rester près de la RAM)
Tmpfs limits
Noauto swap
SNI for DNS over TLS
Zstd
Fido2 + fixes for homed
systemd versions in various distributions:
ArchLinux: 246
Centos/RHEL (Oracle Linux):
7: 219
8: 239
EPEL (unsupported DIY): 245
Amazon Linux 2: 219 (derived from Centos 7)
Debian:
stable, Debian buster: 241; buster-backports: 245
testing, Debian bullseye: 246
Fedora:
stable, Fedora 32: systemd 245
upcoming (october), Fedora 33: systemd 246
OpenSUSE / SLES:
OpenSUSE Tumbleweed (rolling): 245
SLES (Enterprise) 15.2: 234
Ubuntu:
stable, Ubuntu 20.04 (LTS): systemd 245
upcoming, Ubuntu 20.10: systemd 246
Source-based (Gentoo, Exherbo…): choice to compile and use the latest 246
“Enterprise distributions” are still stuck with systemd < 234 (patched but lacking latest features) https://abevoelker.github.io/how-long-since-google-said-a-google-drive-linux-client-is-coming/
Apple / fortnite
https://twitter.com/maxhrau_tech/status/1294023803417362433?s=19
https://stratechery.com/2020/apple-epic-and-the-app-store/
https://www.troyhunt.com/im-open-sourcing-the-have-i-been-pwned-code-base/
Recrutement chez Clever Cloud https://twitter.com/waxzce/status/1295714190032801793
La découverte musicale https://youtu.be/8oYWfJuMGMA?t=2009 Vivaldi Recomposed by Max Richter
