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Quentin Adam and Clever Cloud에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Quentin Adam and Clever Cloud 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.
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Message À Caractère Informatique #12 - 30% Des News Du Kernel Seront Reversées Aux Hackers Russes

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Manage episode 270170944 series 2700941
Quentin Adam and Clever Cloud에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Quentin Adam and Clever Cloud 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

Toutes les notes sont disponibles sur https://www.clever-cloud.com/fr/podcast/episode12

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

https://lwn.net/

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://ebpf.io/

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/

https://systemd.io

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)...


Hébergé par Ausha. Visitez ausha.co/politique-de-confidentialite pour plus d'informations.
  continue reading

104 에피소드

Artwork
icon공유
 
Manage episode 270170944 series 2700941
Quentin Adam and Clever Cloud에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Quentin Adam and Clever Cloud 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

Toutes les notes sont disponibles sur https://www.clever-cloud.com/fr/podcast/episode12

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

https://lwn.net/

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://ebpf.io/

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/

https://systemd.io

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)...


Hébergé par Ausha. Visitez ausha.co/politique-de-confidentialite pour plus d'informations.
  continue reading

104 에피소드

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