Windows 7 and WINXP dual-system installation process and win7 experience
This articleArticleIt was written in February January. At that time, the official version of win7 was not available yet. Today, I took a look at the statistics for a year. I have seen a lot of people reading this article. I hope it will be helpful for you to update it!
References:
Http://www.ylmf.net/read.php? Tid = 1322482 th
View command top for system health[[Email protected]~] #top [options]Options:-D seconds specifies that the top command is updated every few seconds. Default is 3 secondsCommands that can be executed in the interactive mode of the top command? or h to view HelpP sort by CPU usage, default sortM Sort by Memory utilizationN Sort by PIDQ Exit TopTop Command Interface Introduction: The most important is: 1. Average load 2.CPU
I ' m not yet clear and I did, but I'm blogging it so it can found if someone else have this issue.For whatever reason, last week both of my Vista 64-bit machines suddenly stopped being able to start IIS (Internet Informa tion Server). The service just wouldn ' t start. I started getting this error instead "cannot start service w3svc on computer '. ' Which wasn ' t too helpful.A visit to the System event Log via the event Viewer in computer Management
Pfile file, according to the path listed in the Pfile file, establish the corresponding path background process directory and archive directory
*.log_archive_dest_1= ' location=/oracle/app/oracle/orahome/dbs/archive '
*.background_dump_dest= '/oracle/app/oracle/admin/hb052500/bdump '
$ CD $/oracle_base/hb052500/
$ ls
Cdump Udump
$ mkdir Bdump
$ cd $ORACLE _home/dbs/
$ ls
hb052500 Init.ora Inithb052500.ora
Hc_hb052500.dat Initdw.ora Spfilehb
System Startup process:POST-To-BIOS (boot sequence boot sequence)--MBR (Bootloader,446byte)--Kernel---INITRD (INITRAMFS) --/sbin/init (/etc/inittab)Kernel design style:Single Core:All functions are in one kernel. Linux uses a single kernel, but it uses a micro-kernel design idea. LWP (Lightweight process light weight pprocess).Core:/boot/vmlinuz-verisonDynamic loading KO (Kernel object kernel dedicated modu
starts, the Mylinux run level is only 3 and 56.1:cd/etc/rc.d/init.d/switch to the System script daemon directory6.2:vim Mylinux Add the following custom script#!/bin/bash#以下红色两段必须要写, otherwise, when added to the daemon, the script process is not supported Chkconfig# chconfig:345 66 33# Description:mylinux is the text service.STATUS () {if [-e/var/lock/subsys/mylinux]; Thenecho "Running"Elseecho "
(1) who manages the process, managed by the operating system kernel, which is the control management center; it executes various primitives;
(2) inter-process constraints:
ProgramIn the environment, processes in the system are pushed forward at an unpredictable speed; Asynchronization between processes will result in
Chen Yu (Giantchen_at_gmail)
Blog.csdn.net/solstice T.sina.com.cn/giantchen
Chen Yu series of articles on distributed systems: http://blog.csdn.net/Solstice/category/802325.aspx
This work is licensed by the "Creative Commons signature-non-commercial use-Prohibition of Deductive 3.0 Unported License Agreement (CC by-nc-nd)".http://creativecommons.org/licenses/by-nc-nd/3.0/
Convention: This article only consider the Linux system, the article refers to t
A similar situation had been encountered on 11g before, because the ALTER SYSTEM KILL session caused the resource to be fully occupied and the database was hang for a period of time. This time we have a similar problem.A brief description of the environment of the problem, the user in the test, in a very short period of time to start a number of application servers, resulting in a large number of concurrent processes simultaneously connected to the da
, the size of the swap space should be 2-2 of physical memory. 5 times times.As for home, it's your mood!Double-click "Idle"will appear: Here is the "/boot", "/", "/Home", "/swap" Partition the steps are the same.Just "/swap" Partition is not selected "EXT4 Day to File system", in the drop-down menu select "Swap Space".Set the partition, the next step is critical! First look at the number of the "/boot" par
runs at 3 or 5 o'clock, and the 2nd number is the start priority , the higher the number, the lower the priority, the more it starts at the back, and the 3rd number is the off priority , the smaller the number, the higher the priority, the more the first is closed;General after two number of the sum of 100, the service is not high dependent can be started after the start, after the first shutdown; the next two bits are one digit (0-9), should be written in 08 formatThe third behavior describes
critical section, this time to let the process block, then solve the wireless waiting problem, the article began to solve the problem. how the block process.
By calling sleep through the system, you can leave the process in the block state.
The process of being
The approximate process for system startup is as follows:1. Load the hardware information of the Bois and perform post power-on self-test, and obtain the first bootable device according to the configuration;2. Read and run the bootloader (i.e. grub, LILO, Spfdisk, etc.) of the MBR in the first starter unit;3. Loading Kernel,kernel According to bootloader configuration will start to detect hardware and load
Sometimes, when downloading something, you don't want your computer to automatically sleep, so you can enable the exit mode. This will not only save energy and environmental protection, but also cause a headache when you really want to sleep.
Changed itself, disabled the exit mode, and will enter the sleep mode after 30 minutes of no operation. But what should I do during the download? It's also idle, so I wrote this thing:
Added the wake-up function
System Process zygote (2) -- zygote. rc Script, zygotezygote. rc
The sunset is fading down. Who can draw the beauty of the evening? Where is my home and my home? My lover, I think about you like this. Do you have the slightest concern? -- Xu Zhimo's dream of the seaside
Ilocker: Follow Android Security (New entry, 0 basics) QQ: 2597294287
In the previous note, the zygote
Tags: blog http sp 2014 log time BS program user Computer systems without operating systems: 1. manual operation. There are two disadvantages: (1) The user has an exclusive server. In this case, the computer and all resources can only be exclusive to the computer user. (2) The CPU waits for manual operation. 2. Offline input/output mode. In order to solve the contradiction between man and machine and the speed mismatch between CPU and I/O devices. Main advantages: (1) CPU
port2, netstat-abno after viewing, after looking for the pid=4 system process, because it is a process, can not end it, by the SQL Server reportingservices (SQLEXPRESS) service occupies 80 ports, stop SQL After the Server reportingservices, Apache starts normally.3. Uninstall Internet Information Services and World Wi
resources is in the reverse order of the resources requested in. This prevents the cycle-waiting phenomenon from occurring and therefore does not result in deadlocks. The problem that should be paid special attention to in using this method is the arrangement of the level of resources. In general, the more general resources that are often used in the processes are arranged at a lower level, with important and relatively scarce resources placed at a higher level in order to maximize the use of r
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The whole process of building an enterprise-class open source messaging system:
This process is to build the Enterp
the process that consumes most memory--top-io: Show most io-intensive processes............Of course, there are more options for users to choose from, you can use the-H or--help or man manual page for help informationIf we need to let the program output a certain content automatically stop when you can enter "Dstat 1 3" The final program will automatically exit after the fourth display (these numbers can b
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