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Bloomberg Open-Sources Python Memory Profiler Memray
Developed at Bloomberg and now open source, Memray is a memory profiler that can track memory allocations in Python code, including native extensions and in the Python interpreter itself.
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Hardware Mitigation on Intel, Arm, and AMD CPUs Shown Ineffective against Spectre v2
Security researchers from Vrije Universiteit Amsterdam showed the hardware mitigations to Spectre v2 attacks implemented in both Intel and Arm processors have fundamental flaws that make them vulnerable to branch history injection.
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Swift 5.6 Enhances Type Inference, Introduces Existential Any, and More
Swift latest release, Swift 5.6, introduces partial type annotations that work as hints to the type inference engine, disambiguate the syntax for existential types, and improve pointer interaction.
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Docker Desktop Best Practices for Code Sharing
In a recent article, Docker engineer Stephen Turner shared a few best practices to help developers understand file sharing between a Docker container and its local host and how its performance varies across OSes.
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Solo.io Open Sources BumbleBee to Make eBPF Development Easier
Solo.io recently announced an open-source project called BumbleBee, which aims to simplify eBPF application development through auto-generated templates and boilerplate files.
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Twelve-Year Old Linux Distros Vulnerability PwnKit Enables Local Privilege Escalation
A recently disclosed vulnerability affecting the PolKit component has been present on several Linux distributions for over 12 years. The vulnerability is easily exploited, says Bharat Jogi, director of the Qualys research team, who discovered it, and allows any unprivileged user to gain full root privileges on a vulnerable host.
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Linux to Adopt New Multi-Generation LRU Page Reclaim Policy
Based on observed behaviour on Android and Chrome OS, Google began working on a new page reclamation strategy for its Linux-based OSes aimed at improving how the virtual memory subsystem reclaims unused memory pages. More recent work shows the new MGLRU policy can benefit server environments, too.
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eBPF and Wasm: Exploring the Future of the Service Mesh Data Plane
With the advancement of lightweight runtimes, such as eBPF and WebAssembly (WASM), we are now seeing a new generation of service mesh data plane solutions that are lighter, safer, and faster.
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Rust for Linux Progresses with New Abstractions and Infrastructure
A new patch for Linux advances support for Rust as a second language for kernel development. Besides updating the infrastructure and providing new abstractions around kernel features, the new patch sets the base for more frequent submissions, writes Rust for Linux project lead Miguel Ojeda.
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New Side-Channel Vulnerability in the Linux Kernel Enabling DNS Cache Poisoning
A recent research paper by a team at University of California, Riverside, shows the existence of previously overlooked side channels in the Linux kernels that can be exploited to attack DNS servers.
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Swift Experimentally Introduces Support for Distributed Actors
The new Swift Distributed Actors package provides a glimpse into what the future distributed actor language feature could look like in Swift.
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Ubuntu Frame Aims to Power Ubuntu Core-Based Kiosks
Ubuntu Frame aims to power graphical applications for embedded devices like interactive kiosks, smart retail solutions, and so on.
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Swift 5.5 Extends Concurrency Support, Enums, Property Wrappers, and More
The latest release of Apple's language, Swift 5.5, introduces new features aimed at making it easier for developers to write asynchronous code as well as several extensions to the language and compiler, not the least CGFloat and Double interchangeability.
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Docker Now Requiring Paid Subscription for Large Businesses
Docker has introduced a new Subscription Service Agreement which requires organizations with more than 250 employees or more than $10 million in revenue to buy a paid subscription, starting at $5 per user per month. Additionally, Docker has launched a new Business subscription plan for larger organizations operating at scale.
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The eBPF Foundation Aims to Further Advance eBPF Features and Adoption
eBPF, a technology used to extend the Linux kernel capabilities without requiring to change its code or reload kernel modules, now has its own foundation hosted within the Linux Foundation, announce Facebook, Google, Isovalent, and other founding members.