no hz和high resolution timer的引入对内核的调度有很大的影响: 1. 功耗有什么影响 2. 调度性能有什么影响 不知道那位做过这两个方面的profile？
NAME nanosleep - high resolution sleep (REALTIME) SYNOPSIS #include int nanosleep(const struct timespec *rqtp, struct timespec *rmtp); DESCRIPTION The nanosleep() function shall cause the current thread to be suspended from execution until either the time interval specified by the rqtp argument has elapsed or a signal is delivered to the cal...
原来的电脑是两根256M的内存条，今天把一根256M的换成了1G，现在电脑的内存是1G+256M。 想起来超过1G内存要在内核编译选项里修改high Memory support，可是突然发现选项high Memory support已经修改成了4GB，很奇怪！ 按理说应该是off的，难道Fedora Core 6会自动修改这个选项？？？
resolution in pixels Color depth | 640x480 800x600 1024x768 1280x1024 256 (8bit)| 769 771 773 775 32000 (15bit)| 784 787 790 793 65000 (16bit)| 785 788 791 794 16.7 Mill.(24bit)| 786 789 792 795 本文来自ChinaUnix博客，如果...
如何知道resolver发出的查询是recursive resolution or iteration resolution ? 现实中，哪一种多些？ 谢谢指点!
TCP/IP Name resolution Although 32-bit Internet addresses provide machines an efficient means of identifying the source and destination of datagrams sent across an internetwork, users prefer meaningful, easily remembered names. Transmission Control Protocol/Internet Protocol (TCP/IP) provides a naming system that supports both flat and hierarchical network organizations. The topics discussed in t...
Screen_resolution ?br>; Screen resolution can possibly be set in two ways, hardware and software. Hardware: Some graphics adapters have a switch to set the screen resolution. Consult the adapter manual for the settings. This switch also affects refresh rates, which are all tabled in the adapter manual. If you have such a graphics board, this is the only way to affect screen resolution and refresh...
；************************************************************ ; Institute of Automation, Chinese Academy of Sciences ;File Name: Init.s ;Description: timer interrupt test. ;Author: JuGuang，Lee ;Date: ;************************************************************** IOPMOD EQU 0x3FF5000 ；I/O口模式寄存器 IOPDATA EQU 0x3FF5008 ；I/O口数据寄存器 TMOD EQU 0x3FF6000 ；定时器模式寄存器 TDATA0 EQU 0x3FF6...
