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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

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

processor to detect lock# signals when executing instructions that always cause an explicit bus lock to occur. In Pentium 4, Intel Xeon and P6 series processors, the lock operation is handled by a cache lock or bus lock. If memory access is cacheable, and only a single cache line is affected, the cache lock is invoked, and the real memory location in memory in the system bus and system is not locked in the operation. Here, the Pentium 4, Intel

1. You can get some information about the CPU from the/proc/cpuinfo[[email protected] dev] # Cat/proc/cpuinfoprocessor:0 --Logical CPU IDVendor_id:genuineintelCPU Family:6Model:26Model Name:intel (R) Xeon (r) CPU E5504 @ 2.00GHzStepping:5CPU mhz:1995.000Cache size:4096 KBphysical Id:16 --Physical CPU IDSiblings:1Core id:255CPU Cores:1Fpu:yesFpu_exception:yesCPUID level:11Wp:yesFLAGS:FPU VME de PSE TSC MSR PAE MCE cx8 APIC Sep MTRR PGE MCA cmov Pat PSE

-generation processors with I5/i7 with K. Intel quad-Generation Haswell processor (LGA1150 interface) with the motherboard introduction G1840/g3260 is suitable for paired with H81 motherboards, simply a four-generation Celeron/Pentium Starter series processor for the H81 Starter 8 series motherboard. Core i3 4160/i3 4170/i3 4370/i5 4440/i5 4590/i5, etc. do not take k, does not support overclocking core I series and Xeon E series processor, suitable

Database server is very high in all aspects of the system, to handle a large number of random I/O requests and data transfer, the memory, disk and CPU computing power have certain requirements. On the memory side, the database server needs high speed memory to save the processor time to access the hard disk and improve the server's response speed. Today's Xeon processors generally support multiple memory channels, each of which can support multiple

In the analysis of the system, one of the first and most basic tools is often a simple measurement of the CPU utilization of the system. Linux and most unix-based operating systems provide a command to display the system's average load (loadaverage). [huangc@v-02-01-00860 ~]$ uptime 11:18:05 up for days , 1:17, one users, load average:0.20, 0.13, 0.12 Specifically, the average load value represents the average number of tasks that can be run within 1min, 5min, and 15min. The tasks that can

that the purchase of their home VPS after the payment, the account will always be in the pending state, they will manually review the order within 48 hours. If you want to expedite the order review, send Ticket to billing department, the title of "account Approval Request" can be.So start a 256M month to pay 3.5-blade based on OpenVZ VPS, waiting to upgrade to SSD hard disk. The configuration is as follows: Guaranteed RAM:256MBvswap:256mbDisk STORAGE:30GBMonthly TRANSFER:1024GBCPU Cores:2IPv4

an upgrade is to fully support DDR4 memory, so for the future installed or select a computer friend, It is recommended that the computer with six generation CPU and DDR4 be preferred to get a better experience and not be eliminated easily. What about Intel's six-generation CPUs? Here's a quick list: Six generation Pentium series getting started processor recommended: Pentium G4400, Pentium G4500, etc. Six Daicouri series mainstream processor recommended: i3 6100, i3 6300, i3 6320; Six Daico

Does the live broadcast have high requirements for computer configuration? High-end Game live computer DIY configuration recommended Game Live Computer Q: Is the game live on the computer configuration requirements high? A: The computer used for game live, generally has higher requirements on computer performance, broadband, display and peripherals. Performance, the general game live computer needs to be able to meet the needs of all types of mainstream game, the general recommen