Handling Complex Memory Situations
Jérôme Glisse felt that the time had come for the Linux kernel to address seriously the issue of having many different types of memory installed on a single running system. There was main system memory and device-specific memory, and associated hierarchies regarding which memory to use at which time and under which circumstances. This complicated new situation, Jérôme said, was actually now the norm, and it should be treated as such.
The physical connections between the various CPUs and devices and RAM chips—that is, the bus topology—also was relevant, because it could influence the various speeds of each of those components.
Jérôme wanted to be clear that his proposal went beyond existing efforts to handle heterogeneous RAM. He wanted to take account of the wide range of hardware and its topological relationships to eek out the absolute highest performance from a given system.
From/on the Linux Foundation:
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Sysdig Joins the Linux Foundation's New Foundation to Support Continuous Delivery Collaboration
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Linux Foundation Launches Red Team Project
The Linux Foundation has launched a new project aimed at incubating open source cybersecurity tools. The Red Team Project's main goal is to make open source software safer to use.
The aim is to create cybersecurity tools for areas including cyber range automation, containerized pentesting utilities, binary risk quantification, and standards validation and advancement.
[...]
Current tooling from the project start with a Linux Exploit Mapper (LEM) that scans a Linux system for local exploits and maps them to known exploit code. When exploits are discovered using the mapper, they are curated, tested for efficacy and ease-of-use using a variant of the STRIDE scoring mechanism. An Ansible role called cyber-range-target is used to deliberately downgrade OS packages to a version vulnerable to a given CVE (Common Vulnerabilities and Exposure) for assessment purposes. The project also provides a Red Container. This offers containerized pentesting tooling, which can be launched from whole OSes or containerized environments like Kubernetes.
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