Efficient communication of interrupts from kernel space to user space using event queuesTechniques are provided for routinely enqueuing events onto event queues by direct operation of an interrupt service routine (ISR) in kernel space when possible. Only when the event queue is unavailable does the ...
Understanding Kernel-Space vs User-Space Network Stack Kernel-Space Network Stack (BSD Sockets): The kernel-space networking stack refers to the traditional networking layer that runs in the kernel and handles network communication via BSD sockets. This stack is lower-level and interacts directly wit...
> Userspace is that set of memory locations in which user processes (i.e., everything other than the kernel) run. A process is an executing instance of a program. One of the roles of the kernel is to manage individual user process within this space and to prevent them from interfering ...
Versioning of this API matters as it’s the “glue” that ensures deterministic communication between the user space and kernel space 文章里指出了一个重要的概念或者说容易被混淆的概念,`containers和VM的本质区别在于containers上的programs和其所需的计算资源之间唯一存在的抽象层是linux kernel,containers也是...
While monolithic kernels execute all the operating system code in the same address space to increase the performance of the system, microkernels run most of the operating system services in user space as servers, aiming to improve maintainability and modularity of the operating system.[2] A range...
1、NameSpace NameSpace 即命名空间是 Linux Kernel 一个强大的特性,可用于进程间资源隔离。 由于容器之间共享 OS ,对于操作系统而言,容器的实质就是进程,多个容器运行,对应操作系统也就是运行着多个进程。 当进程运行在自己单独的命名空间时,命名空间的资源隔离可以保证进程之间互不影响,大家都以为自己身处在独立的...
1、NameSpace NameSpace 即命名空间是 Linux Kernel 一个强大的特性,可用于进程间资源隔离。 由于容器之间共享 OS ,对于操作系统而言,容器的实质就是进程,多个容器运行,对应操作系统也就是运行着多个进程。 当进程运行在自己单独的命名空间时,命名空间的资源隔离可以保证进程之间互不影响,大家都以为自己身处在独立的...
The kernel acts as an intermediary between your software and hardware, managing device drivers to ease communication. When you plug in a new device, the kernel finds it and loads the right driver. These drivers provide a standardized interface for software to interact with the hardware, abstractin...
NETLINK_NFLOG: communication channel for the user-space iptable management tool and kernel-space Netfilter module. NETLINK_ARPD: for managing the arp table from user space. Why do the above features use netlink instead of system calls, ioctls or proc filesystems for communication between user ...
(VFS), which is part of the kernel and where every other filesystem is based on. If the namespace gets destroyed, the mount memory is unrecoverably lost. The mount namespace abstraction gives us the possibility to create entire virtual environments in which we are the root user even without...