file system cache

Guidance: 1 Preface The main goal of performance optimization is to increase the "number of concurrent users", "throughput", and "reliability" indicators. In essence, performance optimization should be performed in many aspects, and "Point-to-face

Speaking of Cache caching, The BKJIA database channel has previously published the topic MySQL memory management: Cache art, which is recommended to you. Cache and Buffer are two different concepts. Simply put, Cache accelerates "read" while buffer

Summary of basic operation commands for Binary Log files in MySQL, MySQL Binary Log, also known as bin-log, is a Binary Log file generated by mysql execution changes. It has two main functions:* Data reply* Master/Slave databases. It is used to add,

Linux Kernel version release time With the release schedule of the Linux kernel version (0.00 to 3.19, of course, it does not include all versions ), You can see when your version was released! Some colleagues may be surprised. Wow, I used the

By using the built-in performance counters in Microsoft Windows, you can monitor performance to determine device requirements. After the changes, you can use the monitoring function to determine whether the changes have achieved the expected results

Hardware optimization 1. memory performance optimization Windows XP has several options to optimize memory performance, all of which are in the Registry: hkey_local_machinesystemcurrentcontrolsetcontrolsession managermemory Management 1)

Back up data before modifying the registry. In the past, we often used "fragment" to make windows run faster. however, the 7200 RPM hard drive sold on the market has been improved in the aspect of seek and transmission. Many models also come with

Memory: memory usage may be the most important factor in system performance. If the system frequently switches pages, the memory is insufficient. "Page Swap" is a unit called "page". It moves code and data blocks of a fixed size from Ram to a disk

When developing applications for Android, one often facesthe problem of displaying some graphical content from the Internet. So, youshoshould provide image loading from the web in an Android app, their processingand displayingLimited Memory again

Version: memcached-1.2.1-win32.zip Introduction: 1. Introduction to memcached On many occasions, we will hear the name memcached, but many of you have heard of it, and have never used it or actually understood it. I only know that it is a good stuff.

"Talking about some knowledge of Virtual Memory" refers to some of your understanding of virtual memory in the operating system, which mentions the concept of "/3 GB switch. It involves how Windows uses large memory. Here we will discuss in detail.2

The most confusing problem in Aix is the problem of remaining memory. It seems that all the first-time users of Aix tend to be wealthy, and they do not like the remaining physical memory in the AIX system, which is always that small. To be honest,

Cache and buffer are two different concepts. Simply put, cache accelerates "read" while buffer is "write". The former solves the read problem, save the data read from the disk. The latter solves the write problem and stores the data to be written to

General memory functions The following functions are used in memory management. Function Description Copymemory Copies a block of memory from one location to another. Copy the memory. The first parameter is the

The CPU cache query tool in Linux and the cpu cache query in linux In Linux, you can use the following tool to query the CPU cache: Method 1: $ Lscpu L1d cache: 32 K (level-1 data cache) L1i cache: 32 K (level-1 Instruction cache) L2 cache: 25

Copyright Disclaimer: You can reprint the document at will. During reprinting, you must mark the original source and author information of the article as hyperlinks and this statement. Http://www.chedong.com/tech/apache_install.html Keywords:

Optimization of MySQL in high memory and IO Utilization The following optimizations are based on some MySQL Optimizations in the CentOS system. We hope to continue to improve them if they are incomplete or controversial.I. mysql-level optimization 1.

Decompress the memcache Server installation package to the C: \ memcached folder and use the cmd command window to install the package. 1> Start> Run: CMD (OK) 2> cd C: \ memcached (Press ENTER) 3> memcached-d install (Press enter to execute the

Article Title: Introduction to the vmstat command for Linux host maintenance. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems,

Abstract: WEB application capacity planning: WEB service planning and some simple estimation formulas are carried out based on hardware configuration and WEB application characteristics. APACHE installation process: General and simplified