In a variety of test mix scenarios, the combination of 10 (combination 10:SSD * 2, RAID 0, Xfs,wb,nobarrier,noop) has the highest overall performance, so it is the benchmark, and the comparison of other schemes, the following table is the comparison of the combinations and combinations 10:650) this.width=650; "Src=" http://dp.imysql.com:8080/files/upload_yejr_imysql/SAS_VS_SSD_MySQL_OLTP%E5%AF%B9%E6% Af%94%e6%b5%8b%e8%af%95%e8%a1%a8-20120907.png "styl
does not mean that the hard disk can not be used, but performance will be reduced, there is noise, such as driving a car, the mechanical structure will appear aging, so need maintenance, but mechanical hard disk use for 5-10 years completely no problem, or even more.
Solid-state hard disk life standard is generally written or written capacity, the calculation of capacity units are not intuitive, including 4 K, 8K of random write capacity, usually in TB, PB units to calculate, the general profe
SSD predictive bbox is essentially the same as RPN, except that it predicts on multiple layers to better detect objects on multiple scales. predicting bbox on multiple layers
The original SSD300 is predicted on the following layer:
Conv4 ==> x conv7 ==> x conv8 ==>
5 x
5
conv9 ==> 3 3
CONV11 ==> 1 x 1
The number that follows is the size of the feature map for this layer output.SSD512:
Conv4 ==> x conv7 ==> x conv8
The advantages and disadvantages of solid state drives
About solid-state hard disk knowledge, there are many netizens may not know the hard drive is divided into traditional mechanical hard disk and solid state drive two, traditional mechanical hard disk we can often see, for solid-state hard disk knowledge about very little! Today's small knitting is here to charge everyone! Hope to be helpful to everybody!
Let's take a look at what i
and disadvantages. In the "select" section, I will introduce how to select a framework. In the "Timing" section, I will discuss some application scenarios where you should consider the application framework and some application scenarios where you should find alternative solutions. Finally, in the "Advantages and Disadvantages" section, I will discuss all the advantages and
equivalent to the performance of the entry level of independent graphics, whether ordinary network games, or day-to-day Office applications, high-definition video playback, can be easily implemented, so the performance can be suitable for the mainstream user needs.
Of course, in the end we still have to talk about SSD solid-state drives.
"Quick response" as a great selling point of the ultra-extreme, its most direct implementation is through
CS and BS architecture differences, advantages and disadvantages analysis, architecture. CS and BS architecture differences and advantages and disadvantages analysis, Architecture 1, CS Architecture 1, Concept CS architecture is a typical two-layer architecture, the whole process is ClientServer, that is to say, the differences between the client server's C/S and B/S architectures, advantages and
tree can be well extended to large databases, and its size is independent of the size of the database.The disadvantages of the decision tree:In the decision tree, the results of information gain are biased towards those features with more numerical values.Second, the decision tree processing the missing data difficulties.Thirdly, the problem of over-fitting is appearing.Iv. ignore correlations between attributes in the dataset.2 Advantages and
Two structure differences and advantages and disadvantages of C/s and b/s, architecture
I. C/S architecture
1. Concept
C/S architecture is a typical two-tier architecture, the whole process is client/server, that is, the client server-side architecture, the client contains one or more programs running on the user's computer, and the server side has two, one is the database server side, the client through the database connection to access server-side
Several mainstream PHP framework advantages and disadvantages of the evaluation, PHP framework advantages and disadvantages of rating
PHP is a popular open source server-side scripting development language both at home and abroad. Able to adapt to the development needs of large and medium-sized projects. In this article we will introduce several mainstream PHP framework and its related advantages and
templates, yes, no, no, supported object-oriented, yes, yes, no, you may have some questions about my language evaluation, please first read my other article
Discrimination based on object and object-oriented programming paradigm and Application in mainstream programming languagesClarify related concepts. I am not very familiar with object-oriented and Object-based and popular definitions.
Advantages and disadvantages of C Language
C Language
Let's
Body Content
All along, phper the most discussed is the advantages and disadvantages of PHP frameworks, online information is relatively fragmented, now several mainstream framework collection, which I just used Yii2, Laravel, YAF, thinkphp these four kinds of framework, So most of the evaluation of the various frameworks comes from the online material, if the question, please point out in the comments, common progress
First, thinkphp
Thinkphp (FCS)
Comparative analysis of the pros and cons of mainstream PHP frameworks, comparative analysis of framework advantages and disadvantages
PHP is a popular open source server-side scripting development language both at home and abroad. Able to adapt to the development needs of large and medium-sized projects. In this article we will introduce several mainstream PHP framework and its related advantages and disadvantag
1. Postgraduate Entrance Exam
Benefits:
Delay employment pressure and delay the arrival of employment periods; in some cities, some schools can solve the issue of hukou for research institutes to improve their academic qualifications and enhance their competitiveness;
The State has introduced a new expansion policy for the Research Institute. It is relatively easy to take a postgraduate entrance exam and get a higher diploma. There is a creative idea in the academic field. You can keep workin
Talk about the advantages and disadvantages of asp,php,jsp http://hi.baidu.com/lhyboy/item/f95bac264c38830d72863e41ASP, PHP, ASP, JSP and other mainstream web development language comparisonToday, an article on the mainstream website development language-"ASP, PHP, ASP. NET, JSP and other mainstream web development language comparison", and everyone together to exchange a variety of mainstream website development language advantages and
The full duplex of a switch means that the switch can receive data while sending data. It cannot directly connect the input/output ports with different rates and is prone to packet loss, in particular, it supports switching between ports at different speeds to ensure collaboration between high-speed ports and low-speed ports.
With the gradual development of network applications, telecom-grade switches, especially layer-3 switches, have become the focus of competition in today's market. However,
(1) circuit switching: Before communication, a physical channel exclusive to both parties must be established between the two parties (composed of the switching devices and links of both parties ), therefore, it has the following advantages and disadvantages.
Advantages:
① Because the communication line is dedicated to users of both parties, the data transmission latency is very small.
② Once a physical path is established between the communication pa
PHP is a popular open-source server-side scripting language at home and abroad. It can meet the development needs of large, medium and small projects. We will introduce several mainstream PHP frameworks and their advantages and disadvantages in this article and share them with you as a reference. The main reference of ph php is a popular open-source server-side scripting language at home and abroad. It can meet the development needs of large, medium a
Original article translated from: Simplified. If the database can run continuously, of course, it is best. However, this is often costly. Sometimes it is even more advantageous than what it gets.
In the sqlserver2008 database, there are many high availability solutions. For example, you can use failover clusters, database images, log transmission, replication, and other means to improve the high availability of the database. Because there are many solutions, the database administrator has to m
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