@ViewpointLinux

A Linux distribution with a focus on observability by @sevanjaniyan

viewpointlinux.org
Joined September 2020
  • Tweets67
  • Following1
  • Followers20
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Viewpoint Linux Distribution retweeted
erthalion@erthalion30 Dec 2022
New blog post for those who are curious about performance of BPF programs: erthalion.info/2022/12/30/bp… We talk about topics like Instructions Set versions, Top-Down for BPF and simple modeling.
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I just finished reading @lizrice's "What is #eBPF?", an easy-to-read introduction to eBPF for non-sysadmins (like me) isovalent.com/data/liz-rice-… It got me interested in trying to get my hands dirty as I'm a learning-by-doing guy
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Tejun Heo proposed a "BPF extensible scheduler class" for the #Linux #kernel's process scheduler which allows scheduling policies to be implemented as #BPF (aka #eBPF) programs: lore.kernel.org/all/20221130…
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Viewpoint Linux Distribution retweeted
Brendan Gregg@brendangregg9 Nov 2022
Netflix/Intel working together to find low-level PMC-based perf wins in the cloud (by my colleagues Vadim and Harshad) netflixtechblog.com/seeing-t…

Seeing through hardware counters: a journey to threefold performance increase

By Vadim Filanovsky and Harshad Sane

netflixtechblog.com
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Viewpoint Linux Distribution retweeted
Guilherme Amadio@GuilhermeAmadio1 Nov 2022
Trying out Python 3.12's support for Linux #perf (docs.python.org/3.12/howto/p…), along with JIT compiled C++ code and CLING_PROFILE=1 from ROOT to make it more fun. See full flamegraph at cern.ch/amadio/flamegraphs/d….
Flamegraph showing Python 3.12 support for perf in a ROOT data analysis which also makes use of C++ JITted code.

ALT Flamegraph showing Python 3.12 support for perf in a ROOT data analysis which also makes use of C++ JITted code.

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Viewpoint Linux Distribution retweeted
Daniel Xu@__dxu9 Sep 2022
TIL: you can target bpf on compiler explorer!
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Viewpoint Linux Distribution retweeted
eBPF Summit@eBPFsummit1 Sep 2022
🐝 eBPF Summit Schedule is now live 🐝 32 talks for eBPF Summit 2022 across eBPF in the Real World, for Networking, for Security, and Programming and Internals ebpf.io/summit-2022/
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Viewpoint Linux Distribution retweeted
Brendan Gregg@brendangregg15 Aug 2022
Replying to @brendangregg @andrewbrown
I can't remember how many times I've compiled MySQL or another app in a certain (more debuggable) way, populated a database, tried a workload, no another workload, no another...just for one tool screenshot!
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Viewpoint Linux Distribution retweeted
ebpftoy@ebpftoy5 Aug 2022
Kill program that access to /tmp/secret.txt #eBPF bpftrace --unsafe -e 'tracepoint:syscalls:sys_enter_openat { if (strncmp("/tmp/secret.txt", str(args->filename), 15) == 0) { signal(9); }}'
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Viewpoint Linux Distribution retweeted
Behdad Esfahbod@behdadesfahbod30 Jul 2022
More @HarfBuzz study: "The case of the slow hb-ft h_advance function" docs.google.com/document/d/1… I investigate why measuring the horizontal advance-width of glyphs via FreeType font-functions in HarfBuzz is ten times slower than using the internal HarfBuzz font-functions.

HarfBuzz Study: The case of the slow hb-ft h_advance function

HarfBuzz Study: The case of the slow hb-ft h_advance function behdad July 29, 2022 Introduction We investigate why measuring the horizontal advance-width of glyphs via FreeType font-functions in...

docs.google.com
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Viewpoint Linux Distribution retweeted
LWN.net@lwnnet18 Jul 2022
[$] The BPF panic function lwn.net/Articles/901284/ #LWN
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Viewpoint Linux Distribution retweeted
GCC - GNU Toolchain
@gnutools17 Jul 2022
Tips and tricks for #GDB DDD. begriffs.com/posts/2022-07-1…
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If analyzing @PostgreSQL performance 🔎 📈 is your jam, this 📽️ talk is for you. It's by @AndresFreundTec of Microsoft & of the PG core team—and it's about "Analyzing Postgres performance problems using perf & eBPF." A true deep dive from an expert. Enjoy! youtu.be/HghP4D72Noc
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Viewpoint Linux Distribution retweeted
eBPF Summit@eBPFsummit30 Jun 2022
🐝🐝 eBPF Summit is back 🐝🐝 September 28-29 CfP is now open for talks about the next generation of networking, observability and security with eBPF. Get your talk in today! sessionize.com/ebpf-summit-2…

eBPF Summit 2022: Call for Speakers

Back by popular demand, we’re excited to announce that the call for papers is now open for the eBPF Summit 2022, a virtual event, targeted at DevOps, ...

sessionize.com
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Viewpoint Linux Distribution retweeted
Xiaofan Hu@bom_d_van15 Jun 2022
The untold story of BPF | Kernel Recipes 2022 kernel-recipes.org/en/2022/t…
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Viewpoint Linux Distribution retweeted
Frederic Cambus@fcambus13 Jun 2022
Assembly instructions distribution cambus.net/assembly-instruct…
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Viewpoint Linux Distribution retweeted
Linux Kernel Security@linkersec29 May 2022
kconfig-hardened-check is a tool for checking the security hardening options of the Linux kernel. Initially, it supported checking compile-time Kconfig options. And now this tool can also check the kernel cmdline options, aka boot parameters. github.com/a13xp0p0v/kconfig…

GitHub - a13xp0p0v/kernel-hardening-checker: A tool for checking the security hardening options of...

A tool for checking the security hardening options of the Linux kernel - a13xp0p0v/kernel-hardening-checker

github.com
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Viewpoint Linux Distribution retweeted
Frederic Cambus@fcambus16 May 2022
Book review: Practical File System Design with the Be File System geeklan.co.uk/?p=2887
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Viewpoint Linux Distribution retweeted
Daniel Xu@__dxu27 Mar 2022
Really cool to see bpftrace used like this: rubrikinc.github.io/wachy/
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Viewpoint Linux Distribution retweeted
Omar Rizwan@rsnous7 Feb 2022
terminal-free computers (classic Mac OS, Smalltalk, Viewpoint xitter.cf/rsnous/status/10332022…, etc)
Omar Rizwan@rsnous7 Feb 2022
i like that it inherently has to be GUI-first since i guess classic Mac OS had no terminal or anything
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