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Protecting PostgreSQL from the OOM Killer: A Guide to Strict Memory Overcommit

In this blog post, we will explain how strict memory overcommit protects your database from catastrophic OOM (out of memory) kills. We will also share how a one character kernel bug forced us to temporarily disable this setting. Finally, we will explain o

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ubicloud.com·Hacker News: Front Page·15d ago·6 min read

Bootc and OSTree: Modern Approaches to Linux System Deployment and Configuration Management

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a-cup-of.coffee4mo ago

systemd v259 Announces Deprecation of System V Service Scripts, Removal Planned for v260

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github.com7mo ago

Technical Analysis and Critique of D-Bus Implementation in Linux Systems

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blog.vaxry.net7mo ago

Linux Input Stack Architecture: A Comprehensive Technical Overview

Let's explore and deobfuscate the input stack on Linux. Our aim is to understand its components and what each does. Input handling can be divided into two parts, separated by a common layer. We’ll try to make sense of all this, one thing at a time, with a

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venam.net·Hacker News: Front Page·7mo ago·126 min read

Systemd cgroup driver bug: containerd CPU quota calculation mismatch causes container creation failures

Description When using the systemd cgroup driver with a CPU limit of 4096m, pod creation fails intermittently because containerd non-deterministically calculates either 409600 or 410000 microsecond...

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github.com·Hacker News: Front Page·8mo ago·9 min read

Performance Analysis of Zram Compression Algorithms and System Impact

Zram Performance Analysis Introduction Zram is a kernel module that utilizes a compressed virtual memory block device allowing for efficient memory management.

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