这种编程技术涵盖了许多方面,包括文件操作(File Operations)、进程管理(Process Management)、信号处理(Signal Handling)、线程同步(Thread Synchronization)以及内存管理(Memory Management)等。其中,内存管理是 Linux 系统编程中的一个重要部分,它涉及到如何有效地在程序中分配、使用和释放内存。 在Linux 系统编程中,我们通...
softirqd_threads结构体：这是一个在内核中用于管理ksoftirqd线程的数据结构。run_ksoftirqd(unsigned int ...
man一下就能看到,我也不多说了 Using gcov with GCC Optimization If you plan to use gcov to help optimize your code, you must first com- pile your program with two special GCC options: -fprofile-arcs -ftest-coverage. Aside from that, you can use any other GCC options; but if you...
Normally, this allocation occurs dynamically, based on the size of count. As an optimization, however, the Linux kernel creates a small array of segments on the stack that it uses if count is sufficiently small, negating the need to dynamically allocate the segments and thereby providing a ...
一、相关概念: OS optimization 1、understanding the linux operating system: CPU(central processing unit)三大核心部件:运算器、控制器、寄存器 运算器(ALU,arithmetic logic unit算术逻辑单元,算术运算、逻辑运算等) 控制器(control unit,控制指令,数据的存取过程,到什么地方加载数据,加载完成后放到什么地方通知运算器...
The performance of Btrfs and Ext4 on SSDs is influenced by their design and optimization for solid-state drives: Wear Leveling and TRIM Support: Ext4: Ext4 supports TRIM operations, which help maintain SSD performance by allowing the drive to manage free space more efficiently. This results in ...
This optimization is only available in Linux kernel version 4.17 and newer. For this reason it is only offered as technology preview in SLE 12 SP5. 2.7.2 Technology Previews for AMD64/Intel 64 64-Bit (x86_64) # 2.7.2.1 KVM Nested Virtualization # KVM Nested Virtualization is available in...
To enable the desired policy, set it as the value of the <memory mode> element of the domain XML file: <numatune> <memory mode='preferred' nodeset='0'> </numatune> Important If memory is overcommitted in strict ...
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION 移动IPv6(Mobile IPv6)路由优化模式.主要用于移动设备.不确定的选"N". IPv6: IPv6-in-IPv4 tunnel (SIT driver)CONFIG_IPV6_SIT 在IPv4网络上建立IPv6隧道.如果你希望可以通过IPv4网络接入一个IPv6网络,可以选"Y"或"M",否则选"N". IPv6: IPv6 Rapid ...
转载本文档请注明原文链接http://kenwublog.com/docs/linux-kernel-2-6-36-optimization.htm! 介绍 本文档是一篇关于Linux Kernel 2.6.36的最简优化指南。作者旨在编译一份性能最佳且适合程序开发用的内核(带gnome图形界面)。 本文提及的内核调优,主要是通过选择最佳编译选项,删除无用驱动,减少内核尺寸,关闭部分安全...