Pre-loading child records discuss issues that are the same as "deferred loading." Usually active records postpone loading child records from the database until you need them, for example, through the example in RDoc, we assume that the blog program
After each reload system, a variety of security guards and anti-virus software are necessary protection tools, they can automatically intercept the process of some illegal programs to ensure the safety of the computer working environment. However,
In the admin zone--the definition of a virtual host product, you can set a pool number of peopleOn a single server, the total number of general pools should not be more than 20 per cent of performance.As a result, the pool becomes a valuable
php5|window|windows2003| Original
Today, the server for the configuration of PHP environment, the first in Baidu to collect some relevant information for reference, and then began to manually configure the PHP5 environment (personal more like green
Linux memory management, in fact, with Windows memory management has a very similar place, are using the concept of virtual memory, said here have to scold MS, why in many times there is a lot of physical memory, but still used to pagefile. So I
(a) Reasonable setting of virtual memory
Virtual memory settings are based on your physical memory size and the use of the computer to set, on the desktop with the mouse right click on "My Computer", select "Properties", you can see the memory.
What's the difference between Page cache and buffer cache? Most of the time we do not know the system in the IO operation is to walk the page cache or buffer cache? In fact, the buffer cache and page cache are two simpler concepts in Linux, which is
1. What is the difference between the green version and the installation version?
For those who prefer simplicity, the green version can run directly without installation. You can extract it directly into any directory to run. (You need to
1. Shutdown (System shutdown, reboot and log out) command
Shutdown-h now Shutdown system (1)
Init 0 Shutdown System (2)
Telinit 0 Shutdown System (3)
Shutdown-h hours:minutes & Shut down system at scheduled time
Shutdown-c Cancel system
1. Adjust the size of the cache area
You can set the percentage of the system to take advantage of the cache on the primary uses tab of the computer. If the system has more memory, select Network server, so the system will use more memory as the
Original address:
http://channel9.msdn.com/Series/Windows-Phone-8-Development-for-Absolute-Beginners/ Part-9-overview-of-the-windows-phone-8-emulator
Source code: HTTP://AKA.MS/ABSBEGINNERDEVWP8
PDF version: Http://aka.ms/absbeginnerdevwp8pdf
We
Detailed vista/win7 memory management, for Windows Vista, Windows7 memory usage, most users who upgrade from XP think: The System idle memory should be more and better. By the time of 7 (and more accurately vista), the idea that this should be
Optimizeit Profiler Overview
This article introduces some of the main features of Optimizeit Profiler to make you have a brief understanding of it. For more information, check the Optimizeit Profiler user's manual. You can click the
Shutdown: Poweroff or shutdown-h now or init 0
Reboot: Reboot or Shutdown-r now or init 6
Close X-window:init 3
Start X-window:init 5 or start X
View IP Address: ifconfig
Linux kernel version: Uname-r
Basic command
1, view a port number,
1, Nrpe realize the principle of remote host monitoring
Nrpe is a feature extension of Nagios that can execute plug-ins on remote Linux/unix hosts, providing some local information about the server to the Nagios monitoring platform by installing
program debugging under. Net is a lot simpler and less of a problem than the headaches of the pointer crossing the line. However, when your program encounters the following problems, it is still very tricky:
1. The process terminates abnormally.
When users operate MindManager, they experience a slow mindmanager process and a percentage of high CPU usage that can affect the MindManager experience. So how to solve this problem, this article for you to answer, how to mitigate the operation
First, performance analysis-related functions and commands 1.1, time measurement functions usually we often use the Times () function, but the return is the number of seconds, for a piece of code internal performance analysis, to the second
At present, Win8 is not bad, good products are able to change your use of the product in a short time, first of all to tell us the next windows8 Run command where? In fact, you can use Win+r or you use Win+q again in the app found in the R bar in
The so-called shortcut key is the use of a keyboard or a combination of a number of keys to complete a function command, so as to improve the speed of operation. The following is to introduce some of the use of common shortcut keys and functions. We
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