microserver xeon

by the physical characteristics, there is no way to change. MySQL performs a large number of complex query operations every second. you can imagine the disk read/write volume. Therefore, we usually think that disk I/O is one of the biggest factors restricting MySQL Performance. for Discuz with an average daily access volume of more than 1 million PVs! Forum, due to disk I/O constraints, MySQL performance will be very low! To solve this problem, consider the following solutions: Use a RAID-0 + 1

different architectures CPU Migration VMSfrom Intel I7 3370CPU the physical host will all VMS Migrating to Inter Xeon e5-2640 CPUcannot select after migration is complete -aCPUonly Select4One (reason: windows2k8 DC Hyper-Vsingle virtual machine logicCPUquantity is4a), but you can displayInterxeon e5-2640Be sure to update the integration service once the migration is completeHyper-V VMS the export and importExport VMSIf you need to export our virtual m

disallow natural alignment rules. For structures that typically contain different types of data elements, the compiler attempts to align the data elements that are persisted by inserting unused storage between the elements. This technique is called "padding". In addition, the compiler aligns the entire structure with its most stringent alignment member as a benchmark. The compiler may also increase the size of the structure, and when necessary, the compiler will multiply its implementation by a

The old hardware configuration makesComputer room Environment Monitoring SystemServers in data centers are long overdue, and these outdated servers can reduce enterprise innovation and productivity. This is the 2015 enterprise IT changes the main melody.Some enterprise data center hardware equipment has been used for many years, for it business is more important to enterprises, new servers and technology to bring business and management competitive advantage.In 2015, we will face many servers wi

One, Linux view server System Information method:1. View host name/kernel version/CPU architecture: # uname-n-r-p-o Localhost.localdomain 2.6.32-220.el6.i686 i686 2. View the Linux system type and version: # head-n 1/etc/issue CentOS Release 6.2 (Final) 3. View language Character Set settings: # echo $LANG $LANGUAGE Zh_cn. UTF-8 # cat/etc/sysconfig/i18n Lang= "ZH_CN. UTF-8 " 4. View Users: # WhoAmI #查看当前登录用户名 # ID #查看当前用户

persistent connection often does not send data, so it can also be viewed as an inactive connection.For the system, this kind of inactive connection does not occupy CPU and network resources, but only occupies the system memory.Therefore, we assume that the system can support the number of connections we want as long as the system memory is sufficient. Is that true? If this is the case, it is also a test for the kernel to maintain this large data structure. To complete the test, we need a serv

only 2 are running Microsoft Windows, the remaining one uses a mix of AIX/Unix and Linux systems. Other traditional Solaris and BSD Unix do not appear in the top 500 supercomputer lists. Hardware vendors are constantly introducing faster processors to make super computers run faster. For example, Intel's next-generation Xeon Phi processor has up to 72 cores and 3 trillion processors per second, leading the multi-core chip three times ahead of Intel'

Hardware environment: Server: dl180g6 (16 intel (r) Xeon (r) CPU e5620 @ 2.40 GHz) 16 GB memory Press: dl180g6 (16 intel (r) Xeon (r) CPU e5620 @ 2.40 GHz) 16 GB memory Software environment: Nginx1.2.5php5.4.9 Max 600php-fpm Network Environment:Gigabit Test scenario: Scenario 1: (without any extension ): Scenario 2: (enable APC 3.1.14 and allocate a cache of 512 MB ): Scenario 3: (

kernel lock, enters the critical section which it protects, not only the critical section is locked, all other critical sections that it protects are inaccessible until the process releases the large kernel lock Note : The following is an excerpt of the finishing section. Detailed :Chapter One: Explaining the reasons from the hardware level1. Concept:Starting with the fundamentals of CPU , the system performance improvement must be based on the understanding of CPU fundamentals, in addition, th

connections. For the system, this kind of inactive connection does not occupy CPU and network resources, but only consumes the system memory. So, we assume that as long as the system has enough memory, the system will be able to support the number of connections we want to reach, so is the fact true? If this is the case, the kernel will be a test for maintaining this fairly large data structure. To complete the test, we need to have a server and a large number of clients. Therefore, the servic

all related functions and settings in iniThe magic_quotes_gpc, magic_quotes_runtime, and magic_quotes_sybase parameters are removed. While get_magic_quotes_gpc and get_magic_quotes_runtime are retained, but false is always returned. The set_magic_quotes_runtime will produce the E_CORE_ERROR error. ========================================================== ======================EXT/SQLITE extension removedDon't be surprised. The extension removed this time is only ext/sqlite, andExt/sqlite3And e

Archive By month 0.113 billion 1.8 GB No keys 21 min 9 Archive By year 0.113 billion 1.8 GB No keys 20 min * On dual-Xeon servers To compare the effect of partitions on large and small datasets, an additional nine instances are created, each of which contains data of less than 2 GB. There are two types of query statements Clustered Query Select count (*) FROM table_name WHERE date_column BETWEEN s

Mysql production environment ____ master-slave synchronization repair case I. hardware environment Master: Dell R720 Intel (R) Xeon (R) CPU E5-2640 v2 @ 2.00 GHz MEM 64 GB, disk 4*2.5 SAS network 4 * Gigabit Slave: Dell R720 Intel (R) Xeon (R) CPU E5-2640 v2 @ 2.00 GHz MEM 64 GB, disk 4*2.5 SAS network 4 * Gigabit Ii. Software Environment System software: Master: cento5.8 Slave: cento5.8 Database software:

optimize storage performance. In terms of transmission, intelligent stream technology can be used to control the transmission rate, to maximize the smoothness of watching videos. Static and Dynamic Scheduling can be used for scheduling. Management policies such as segment caching and Dynamic Caching can be used for proxy servers; in the architecture of streaming media, the memory pool and thread pool technology can be used to improve the impact of memory consumption and excessive threads on per

Performance comparison of PHP three accelerators Hardware environment: Server: Dl180g6 (Intel (R) Xeon (r) CPU E5620 @2.40ghz) 16G memory Presses: Dl180g6 (Intel (R) Xeon (r) CPU E5620 @ 2.40GHz) 16G memory Software Environment: nginx1.2.5php5.4.9 Max 600PHP-FPM network environment: Gigabit Test scenario: Scenario One: (without any extensions): Scenario Two: (Open APC 3.1.14, allocate cache 512M): Scena

number of kernels on my server. In Linux, There Is A/proc directory that stores the virtual ing of the current running system. One of the files is cpuinfo, which stores CPU information. We can directly open the view or filter keywords for viewing. Because there are many files, we usually need to filter keywords. The/proc/cpuinfo file displays information by logical CPU rather than by actual CPU segments. Each logical CPU occupies one section. The first logical cpu id starts from 0. First, we ne

Archive By month 0.113 billion 1.8 GB No keys 21 min 9 Archive By year 0.113 billion 1.8 GB No keys 20 min * On dual-Xeon servers To compare the effect of partitions on large and small datasets, an additional nine instances are created, each of which contains data of less than 2 GB. There are two types of query statements Clustered Query Select count (*) FROM table_name WHERE date_column BETWEEN s

configuration information Hardware CPU model and size [Root @ localhost ~] # Grep "model name"/proc/cpuinfoModel name: Intel (R) Xeon (R) CPU E5410 @ 2.33 GHzModel name: Intel (R) Xeon (R) CPU E5410 @ 2.33 GHz 4. view the CPU count[Root @ localhost ~] # Getconf LONG_BIT View memory (only in KB)[Root @ localhost ~] # More/proc/meminfoMemTotal: 3755008 kBMemFree: 155276 kB View memory (displayed in MB) [R

use it on its Xeon platform and does not involve PCs and laptops. Therefore, it is not very smooth, so it is easier to promote it.Of course, FB-DIMM memory also has some problems, it needs an AMB chip, according to the server vendor, the current FB-DIMM Memory price is 20-30% higher than the mainstream registerred ECC DDR2 memory. In addition, AMB chip will bring about 3-5 W additional power consumption, for the entire system is 20-40 W growth, so bo

be as accurate as possible, in order to ensure easy to understand, may not reach the academic level of accuracy.3) This post emphasizes knowledge and understanding. And in reality, is to spend six hundred or seven hundred to buy a i3, or 1000 buy a i5, the specific situation of the specific analysis, there is no fixed answer.4) If it is local tyrants, just a ' cool ' word. Do not seek cost-effective, only the most expensive. This post is not recommended to read, because all the theory can not e