xeon e5620

Source: http://www.hellodb.net/2011/06/fusionio-performance.html Test environment: Dell r510, 2 x e5620, 24g, fusion-io iodrive 320g MLC Test Tool: RedHat Linux 5.3, Oracle Orion 11 Test 1: 8 K random read with an iops of more than 5 W and a throughput of more than 400 m. When the response time reaches 4 W, the inflection point (more than 1 ms) appears and rapidly increases to the maximum value of 9.5 Ms. ######################################## ####

pressure of your database, This is the only time to consider a cluster architecture approach, which I'll focus on later. optimization of single-machine MySQL databaseFirst, the impact of server hardware on MySQL performance① disk seek capability (disk I/O), we are now on the SAS15000 drive. MySQL every second in a large number of complex query operations, the amount of read and write disk can be imagined. Therefore, the disk I/O is generally considered to be one of the biggest constraints on M

Tags: mysql optimization discuz InnoDBPreviously wrote two articles on Discuz optimization in 2006 and 2009: MySQL Optimization discuz forum optimization, MySQL optimization discuz Forum optimization-continued, did not expect all 6 years later, Discuz still in the strong use of MyISAM engine, Comparable to the sanctions committee ...Today help friends to optimize the millions of PV, millions of UV forum, background db using R710 (16G Ram,perc 6/i 256MB bbu,4 block 15K RPM SAS disk to do RAID 1+0

disk array, it is important not to try to use Raid-5,mysql on the RAID-5 disk array as quickly as you might expect.②CPU for MySQL applications, it is recommended to use Dell r710,e5620 @2.40ghz (4 Core) * 2, I now prefer the Dell R710, also used as a LINUXAKG virtualization application;③ physical memory for a database server using MySQL, the server memory is recommended not less than 2GB, recommended to use more than 4GB of physical memory, but memor

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 disk array. Do not try RAID-5, mySQL's efficiency on RAID-5 disk arrays will

reflected. On systems using Intel processor hyper-Threading Technology (HT technology), there are currently two execution pipelines on each processor core. The latest multi-core processor has two processor cores on each chip. Intel pointed out that chips may have multiple cores in the future, most of which are due to higher performance and will not fundamentally increase the consumption of heat or power. Therefore, the number of pipelines will increase. According to the arithmetic recommendati

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 disk array. Do not try RAID-5, the efficiency of MySQL on the RAI

automatically call The modprobe command to load the required modules. This is a great feature, of course, you must choose Y. Part 4 04. Processor type and features ---> Processor type 04.01. Subarchitecture Type (PC-compatible) ---> the main purpose of this option is to enable Linux to support multiple PC standards, generally, the pc we use follows the so-called IBM compatibility structure (pc/). This option allows you to select other architectures. We generally choose PC-compatible. Sele

First, the hardware compositionMotherboard CPU hard disk memory graphics card NIC Optical drive chassis monitor Keyboard mouseSecond, Hardware introduction1. CPU ProcessorClock frequency: The CPU core works64-bit technology: Processor 1 times can run 64bit of dataCache: Alleviates the speed difference between CPU and memoryMulti-core technology: one processor on a single semiconductor has multiple processing cores of the same functionInterface: Number of pins INTEL 478 775 1366AMD 939 940 938Com

Fedora18 was released. One of the most exciting features in virtualization is online snapshots. In the past, KVM used to take snapshots and the virtual opportunity was automatically paused. Now, this problem has been overcome. Lab environment: hardware Intel (R) Xeon (R) CPUE5540@2.53GHz6G memory 80Gsata hard drive software fedora18kernel3.7.2-204. fc18.x8 Fedora 18 released, one of the most exciting features of virtualization is online snapshot. In t

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 in the CentOS system, consider the following solutions: Use a RAID-0 + 1 disk array. Do not try RAID-5, the efficiency of MySQL on the RAID-5 disk array is not as fast as you expected;Abandon traditional hard disks and use faster flash storage devices. After Discuz! The company's technical engineering tests sh

physical CPUs * Number of cores per physical CPUTotal logical CPUs = number of physical CPUs * Number of cores per physical CPU * Number of hyper-threadsIn the above formula, the number of logical CPUs is the number of threadsHow to view CPU physical number# grep ' physical id '/proc/cpuinfo | Sort-uPhysical ID : 0physical ID : 1How to view the number of cores per physical CPU# grep ' core ID '/proc/cpuinfo | Sort-u | Wc-l8How to view the total number of logical CPUs# grep ' Processor '/p

; D. X=1; To understand the problem thoroughly, we need to start with the hardware first. With the common X86 CPU, according to Intel's reference manual, it is based on the following three mechanisms to ensure the locking of atomic operations in multicore (Section 8.1):(1) Guaranteed Atomic Operations (Note: 8.1.1 sections are described in detail)(2) Bus locking, using the lock# signal and the LOCK instruction prefix(3) Cache coherency protocols that ensure, atomic operations can is carried

second, which is determined 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! You can consider the following solutions to s

What is the difference between minicomputers and PC servers? From various performance evaluation indicators to the processing capability of a single CPU, minicomputers do not seem dominant. Why is it expensive?We can analyze the characteristics of performance, reliability, and scalability. For a single CPU, the Intel Xeon or AMD opteron used by PC servers is not inferior to the CPU performance used by minicomputers. However, the operating system relea

computing technology are unable to solve massive data mining due to low mining efficiency, affecting the timely extraction of data. For a long time, business intelligence systems are often built based on traditional SMP architecture minicomputers. With the increasing performance, availability, and scalability of the x86 Platform in recent years, the X86 platform has begun to erode the share of minicomputers in more and more market fields, business Intelligence has also become another battlefi

programmers. When writing code, you should not rush to implement the function. If you want to write code, the code execution efficiency is better. For example, suppose there is a shortcut for defining getelementbyid functoin $ (elemid) {return document. getelementbyid (elemid)}, someone may write this code $ ("mydiv "). parentnode. removechild ($ ("mydiv"), in fact, the getelementbyid Dom query is executed twice here. It will be better if it is changed to this: var mydiv = $ ("mydiv"); mydiv.

carefully.Symmetric Multi-processing support enables the multi-core switch. My CPU is dual-core and selected.Processor family (Core 2/newer Xeon) I use core 2/newer Xeon. Find your CPU and cancel the generic x86 support option.Select subarchitecture type (PC-compatible)Maximum number of CPUs: Enter the number of cores. I enter 2.SMT (hyperthreading) sched100 support is about hyper-Threading Technology. P4

"General setup" is not required. However, if your hardware is relatively new, it is almost required. In this way, we can find the 4965 wireless network card, ALSA sound driver, and so on.Kernel log buffer size I select 15, dual-core. If you use IA64, select 16.Control group support cluster support? Can notChoose Slab allocator (slub (unqueued Allocator) memory management mode slab and slub select slub. 2. In block layer, if there is no 2 TB hard disk, remove: Support for Large Block devices. Su

Make full use of CPU Performance Now we are trying to capture packets, and how to maximize the performance of the server becomes a problem facing us. Today, we will introduce the CPU performance configuration items. 1. First check the current CPU physical frequency and operating frequency in the Linux system, in the following you will find that our CPU is 2.0 GHz E5-2620, but the CPU is working in 1200mhz. cat/proc/cpuinfoprocessor:0vendor_id:GenuineIntelcpufamily:6model:45modelname:Intel(R)