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Linux Kernel Architecture 1. Introduction → The Linux Kernel is the core part of the Linux operating system. → It acts as a bridge between hardware and software applications. → It manages processes, memory, devices, and system calls. 2. Core Responsibilities → Process…
Quick Linux tip Want to know how long a process has been running? Use the etime column with ps, it shows the "elapsed time" since the process started. For example, to see how long Nginx processes have been running: $ ps --forest -C nginx -o ppid,pid,cmd,etime The ETIME…
7 Free resources to learn Linux & DevOps 1. Linux → linuxopsys.com 2. Bash → blog.sysxplore.com 3. AWS → explore.skillbuilder.aws 4. Azure → learn.microsoft.com 5. DevOps → edx.org/learn/devops 6. Docker → docker-curriculum.com 7. Kubernetes…
I've interviewed DevOps candidates. The ones who deeply understand Linux always rise to the top. Here's what separates great Linux engineers: • They can troubleshoot using command line • They understand process management • They grasp networking fundamentals • They know…
I see too many aspiring DevOps engineers jumping straight into Docker/Kubernetes without learning Linux. - Every production server you'll touch runs Linux. - Every container runs on Linux. - Every Kubernetes cluster runs on Linux. You're not ready for Kubernetes if you…
How to Accurately Check Memory Consumption of a Process in Linux When your Linux system starts feeling sluggish or running out of memory, one of the first things you’ll want to check is which processes are consuming the most RAM. Tools like ps and top make this easy at a glance,…
🧠 Universal Optimize — Linux 通用安全网络优化脚本 github.com/buyi06/-Linux- 调优：扩大连接队列、TCP缓冲区，优化连接跟踪。 适合：代理/VPN服务器、高并发Web应用、连接数瓶颈场景。不适合个人博客、资源紧张的小VPS、高稳定性要求环境。 总结：针对高负载场景的激进优化脚本
In Chapter #14 of the LFCS certification, learn how to monitor CPU usage with mpstat, identify resource-hungry processes with ps, explore /proc, set per-user limits, and safely manage processes in Linux. 📖 Read the full guide (Pro members only): 👉 pro.tecmint.com/monitor-cpu-pr……
Introduction to Linux kernel exploitation: env setup and ret2usr Part 1: scoding.de/linux-kernel-e… Part 2: scoding.de/linux-kernel-e… #Linux #cybersecurity
We just published our internal deep-dive on the NØNOS kernel build process. A full ELF audit headers, PT_LOAD layout, target JSON and loader invariants. Deterministic, signed, reproducible system software, no magic, no guesses. 📕 medium.com/@nonos/buildin… Every offset and…
I optimized my relu kernel in triton at 300 GFLOPS (28.1 ms) to 670 GLOPS(0.8 ms) in CUDA, currently top 10 on @tensarahq using a mix of - 1. vectorized stores and loads(float4). 2. SIMD type masking. 3. Very high GPU occupancy. 4. Tuning grid/block size depending on input…
Last week I presented cache_ext at SOSP'25! 🎉 Linux's page cache uses an inflexible LRU-like eviction policy for all applications, leaving performance on the table. cache_ext allows users to customize the page cache using eBPF-based policies to matter match their workloads. 🐝
Ubuntu’s plan to replace the GNU Core Utils with Rust-based reimplementations is going exactly as poorly as predicted. Some Rust versions being 17 times slower than the battle tested GNU C / C++ version. And other Rust-based versions simply failing to work on large files.
𝗔 𝗹𝗶𝘀𝘁 𝗼𝗳 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝘁𝗼𝗼𝗹𝘀 𝗶𝗻 𝗮 𝗟𝗶𝗻𝘂𝘅 𝘀𝘆𝘀𝘁𝗲𝗺 🔹𝗽𝗶𝗱𝘀𝘁𝗮𝘁 - monitors how much of the system's resources—such as CPU, memory, device IO, task switching, and threads—are being used by all or a specific set of programs. 🔹𝗻𝗲𝘁𝘀𝘁𝗮𝘁 - displays…
👋 Hello everyone I post about the following: 🐧 Linux 🐧 Linux commands 🐧 Linux Tips 🐧 Shell Scripting 🐧 Bash Tips 🐧 Linux cheatsheets 🐧 Sysadmin 🐧Tips for those who are unfamiliar with Linux 🐧 More Linux stuff 🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧🐧
驚くほどシンプルなコーディングトリックでデータセンターのエネルギー使用量を 30% 削減 | Live Science #DataCenterEnergy #LinuxOptimization #EnergyEfficiency #DataCenterSustainability prompthub.info/96137/
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