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from Facts", a series of tests demonstrate that "CPU performance and memory size are not factors affecting SSD performance". The current CPU and memory performance is sufficient to handle the transmission needs of both mechanical and SSD drives. Take the memory, the dual channel DDR2 667 bandwidth is 667*2*64/8=10672MB/S=10.672GB/S, the single channel DDR3 800 bandwidth is 800*64/8=6400MB/S=6.4GB/S, moreov
SSD win7 Optimization guide: nine Win7 SSD optimization methods with the price of solid-state drives falling, solid-state drives are now widely used, and some new notebooks and assembly computers are also beginning to adopt solid-state drive platforms, not to mention that the use of solid-state drives has become standa
is very practical. Here to recommend to you. SSD Fresh 2015 is a professional SSD solid-state HDD optimization tool, can reduce the SSD disk reads and writes the number of times, greatly lengthens the service life! SSD
. Based on the above features of SSD, if you put all the databases on SSD, the following problems may occur: 1. Log File sequential logging will repeatedly erase the same location. Although there is a loss balancing algorithm, long write will still cause performance degradation. 2. Data Files in place update will generate a large number of random writes, and erase-before-write will generate write amplificat
From the advent of SSDs, to the present popularity, in fact, only a few years of time. During this time, SSD performance and capacity, especially the price, have undergone a great change. Have to say, now the capacity of SSD is getting bigger, the price is also getting cheaper. However, compared with the traditional HDD, there are some gaps in the capacity and price ratio, especially the large capacity is t
analyzed. Locate the possible cause of the problem and try to make the following adjustments on the 24 master database: After the above adjustments, I/O became stable and there was no larger fluctuation. For the sake of insurance, project A decided to use an SSD-equipped model to migrate the master database, and migrate the 24 slave database 27. After the migration is completed, the SSD and MySQL InnoDB pa
Simple Optimization of SSD hard drive on Ubuntu 1. Set the correct mounting option and enable TRIM. After Linux is installed, this is very important. To maintain long-term stability and speed, SSD needs to enable TRIM, which enables SSD to truly erase the materials marked on the chip during non-peak read/write times. T
Although Samsung introduced the fix last October, it was reported last month that some of the Samsung 840 EVO SSDs face the problem of reading off the old data after it has been brushed into the new firmware. In view of this, Samsung issued the following statement in the afternoon of Friday: "In October, Samsung launched a 840 EVO SSD firmware tool that only fixes old data read-off, but a small percentage o
Linux SSD optimization policy 1. do not use a file system with logs. If you have the ability, consider a file system that supports ssd, such as ubifs. If not, use ext2 www.2cto.com 2. disable noatime nodiratime of the file system, because the access time will increase ssd write, there is no need to modify/etc/fstab, fo
1, installation, installation of solid state drive when you try to choose to plug in the SATA 3.0 socket, if your motherboard with SATA3.0 so that the transmission speed faster; 2, partitions, partitions can be the same as the normal hard disk partitions, but some to remember to check the "alignment to the number of sectors in the integer multiple", and then select 4096,4k Alignment can make read write faster. 3, using AHCI mode, we directly open the computer's Registry
Simple MySQL optimization tool-slow query and mysql optimization tool Slow Query First, enabling slow queries is a prerequisite regardless of the optimization. The slow query Mechanism records slow query statements (events) to provide op
Usually SQL database needs optimization analysis, and there are some techniques, SQL optimization of several methods here do not do a detailed introduction, this article will be summarized in SQL statement optimization, followed by an optimization tool SQL Tuning Expert for
[MySQL Notes] Powerful SQL optimization tool and powerful MySQL SQL Tool If you have experience using MySQL, you may encounter slow SQL queries in your project. In some scenarios, you can easily locate the problem (for example, when a single table operation has slow SQL queries, check the SQL statement carefully and it is usually easy to locate the index problem)
Tags: disco net text http speed data start time NTS database applicationOriginal: SQL Performance Detection Tool: SQL Server Profiler and Optimization tool: Database Engine Tuning Advisor I. Summary of TOOLS? database application system performance is low, it needs to be optimized,?? If you do not know where the problem is, you can use the Performance Detection
Google adwordsKeyword tools: This is the most importantSeoOne of my most commonly used tools. This tool is providedGoogle adwordsTools used by advertisers to expand and select keywords. However, whether or not you log inGoogleAccount, all visitors can use this tool. You only need to enter a keyword and click the "get keyword prompt" button. This tool lists the
actual index used. If NULL, the index is not used. Key_len: The length of the index used. The shorter the length the better, without loss of accuracy Ref: Shows which column of the index is being used and, if possible, a constant Rows:mysql the number of rows that must be checked to return the requested data Extra: The return value to note (extended column) Using Filesort: When you see this, the query needs to be optimized. MySQL requires additional steps to find out how to sort the rows that a
Mysql performance optimization tool -- Introduction to tuner-primer and mysql Performance Optimization Download and change the execution permission:Wget http://www.day32.com/MySQL/tuning-primer.shChmod + x tuning-primer.sh/Tuning-primer.shResult report:It will be marked with several colors:Blue: Total metricsGreen: this parameter is optional.RED: indicates a seri
Optimization is sometimes a time-consuming and laborious task, especially in the area of external chain construction. So if we can reduce our workload by optimizing tools, the answer is yes. At present, there are many tools to provide optimization help software, which can help optimize the staff to solve some of the tedious work of optimization. However, before y
ReproducedLandlord I use the first picture optimization, the effect is very good, recommended!We all know that beautiful pictures can make a Web page look more upscale in the atmosphere. However, the general high-resolution HD picture/Photo volume is very large, if the page contains a lot of pictures, the page loading speed will become very slow.Not only that, if the amount of Web page access is large, the image consumption of traffic bandwidth will m
-sensitive execution plans to help the system and SQL running status; 11. It is not a speculation or suggestion, but an SQL rewrite solution. Expert-level SQL statements The emergence of Lecco SQL expert makes SQL optimization easier. It not only finds all possible optimization schemes in a short period of time, but also determines the most effective optimization
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