Bell Labs’ prototypical operating systems influenced the architecture of Unix-like computer operating systems hence, it imitated its characteristics.Īt that time, Linus Torvalds was just a 21-year-old computer student at the University of Helsinki, Finland. However, the Linux kernel was later adopted as the kernel for GNU (GNU’s-Not-Unix) operating system, which was programmed to be a free substitute for Unix. The Linux kernel is a Unix-like operating systems kernel that Linus Torvalds originally established in 1991 for personal computers that were i386 based. It is a free, open-source, and multitasking operating system kernel. The Linux kernel falls under the Monolithic kernel types. An address space is the amount of memory dedicated to all usable addresses for a computerized entity, such as a server, a device, or a file. What distinguishes these kernels is the number of address spaces they are compatible with. Usually, Kernels can be categorized into three groups based on their architecture: Monolithic, Microkernel, and Hybrid. All other tasks an OS kernel performs can be categorized under these three. Also, it plays an important role in the smooth running of computer operations, such as storage, processing, file management, etc.Īn operating system’s kernel performs several functions it provides the necessary interaction interface for users and computer applications, oversees the operation of significant hardware devices, and ensures the proper running of applications. It provides essential services to the entire operating system. The Kernel has always been considered one of the basic building blocks of a computer’s operating system. Was used in Debian 8 "Jessie".The kernel is the primary layer between the operating system and computer hardware. Maintained until October 2014, then May 2016 to June 2020 ġ3th LTS release. Starting with 3.18.140, this version will no longer be maintained on, but on AOSPīen Hutchings (formerly Greg Kroah-Hartman) Hartman stated that he will release irregular updates to the 3.18 tree. Greg Kroah-Hartman (formerly Sasha Levin ) (formerly Greg Kroah-Hartman)ġ4th LTS release, named Diseased Newt Named "Hurr durr I'ma sheep" (Internet poll) Sasha Levin (formerly Greg Kroah-Hartman) ġ5th LTS release. Used in Ubuntu 16.04 LTSĬanonical provided extended support until July 2016. As the first kernel selected for Super Long Term Support (SLTS), the Civil Infrastructure Platform will provide support until at least 2026, possibly until 2036. Canonical provided extended support until April 2021. Greg Kroah-Hartman & Sasha Levin (until February 2022 )ġ6th LTS release, used in Slackware 14.2. Older version, yet still maintained: 4.14Ĥ.10-rc5 was named Anniversary Edition ġ7th LTS release. RHEL 8.x (Redhat ignores LTS-Kernel, own kernel-backports) Second SLTS release (which CIP is planning to support until January 2029), and first with ARM64 support. Older version, yet still maintained: 4.19ġ9th LTS release. io_uring API, a new way to do asynchronous I/O (AIO), the older API/interface "aio" had problems and performance issues.Older version, yet still maintained: 5.10Ģ1st LTS release used in Debian 11 "Bullseye" ģrd SLTS release (which CIP is planning to support until January 2031) Ģ0th LTS release, used in Ubuntu 20.04 LTSĥ.4-rc5 is named Kleptomaniac Octopus Used in RHEL 9.x and derivatives (Redhat ignores LTS-Kernel, own kernel-backports) and SLE 15 SP4/ openSUSE Leap 15.4 Introduce process_mrelease(2) system call.Migrate memory pages to persistent memory in lieu of discard.Older version, yet still maintained: 5.15 Memory folios infrastructure for a faster memory management.New futex_waitv() system call for faster game performance.Mitigate straight-line speculation attacks.Support giving names to anonymous memory.New Real-Time Linux Analysis (RTLA) tool.Stricter memcpy() compile-time bounds checking.Headers rearchitecturing preparations for faster compilation times.fprobe, for probing multiple functions with a single probe handler.Support for Indirect Branch Tracking on Intel CPUs.Introduce Intel In-Field Scan driver to run targeted low level diagnostics outside of the CPU's architectural error detection capabilities.Armv9 Scalable Matrix Extension support.More secure encrypted virtualization with AMD SEV-SNP and Intel TDX.new hardware support including Intel, AMD, Qualcomm.performance improvements on Intel Xeon ‘Ice Lake’, AMD Ryzen ‘Threadripper’, AMD EPYC.Improved support for game controllers.Multi-Gen LRU page reclaiming (not yet enabled by default).Support for writing kernel modules in Rust.Error: Version parameter not found class="templateVersion cp"
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