the sending side is sent at a faster rate, the receiver receives the data after the processing is slow, and the size of the receive buffer is fixed, the data is lost. The TCP protocol solves this problem through a "sliding window (Slidingwindow)" mechanism. Look at the communication process in the diagram below.
1. Send side initiates the connection, declares the maximum segment size is 1460, the initial sequence number is 0, the window size is 4K, indicates "My receive buffer also has 4 K byt
Title Description:An integer can be split into the sum of 2 powers, for example: 7 = 1+ 2 + 4 7 = 1 + 2 + 2 + 2 7 = 1 + 1 + 1 + 4 7 = 1 + 1 + 1 + 2 + 2 7 = 1 + 1 + 1 + 1 + 1 + 2 7 = 1 + 1 + 1 + 1 + 1 + 1 + 1 There are six different ways to split Another example: 4 can be split into: 4 = 4, 4 = 1+1+1+1, 4 =, 4 = 1+1+2. use f (n) to denote the number of different splits of N, such as f (7) = 6. required to read n (not more than 1000000), output f (n)% 1000000000. Problem Solving Ideas:F
, if it is negative, it may be 0 or 1, depending on the computer system used.③, ">>>" unsigned Right shift, the right bit is squeezed out, for the left to move out of the space to fill 0.According to the characteristics of the binary number, I believe that everyone is well understood.For given an arbitrary decimal number xnxn-1xn-2 .... X1x0, we decompose it with a binary representation method:Xnxn-1xn-2 .... x1x0 = xn*2n+xn-1*2n-1+......+x1*21+x0*20 3-1 formulaThe decimal number here is only th
of the product of the W bit is the same as the low w bit of the product of the unsigned number. This means that the computer can use a single instruction to perform unsigned and complementary multiplication operations.
The proof of this process is given in the book, so let's take a look at the relationship between unsigned and complementary codes, where x ' and Y ' represent the complement codes for x and Y, respectively.
The main technique used here is 2w mod 2w = 0.
optimization of multiplic
implicit transaction mode, SQL Server automatically starts a new transaction after committing and rolling back the transaction. Such a thing cannot describe the beginning of a thing. It only submits or rolls back each thing.3) Automatic commit transaction: This is the default transaction mode of SQL Server, which treats every T-SQL statement as a transaction. If the task is successfully executed, the task is automatically submitted. If an error occurs, the task is automatically rolled back.In a
10. Kevin Garnett
At no. 10 we find the NBA's reining MVP Kevin Garnett. at 6-11 plus some, KG is large and most definitely in charge. so much so, in fact, he personifies his moniker of big ticket, giving fans a super sized show of points, boards, blocks, steals and as
It may be that you prefer playing basketball. Maybe the Chinese Men's Basketball Team has a better performance than the Chinese team. Basically, there are basketball games that are mandatory for each game. However, the loss of the SS cup to Angola yesterday is so cool!
I have played basketball for ten years and watched basketball for ten years. NBA I dare not say how much basketball knowledge I have. I still know some basic tactics: 40
Optimize Your Nic. This section describes some Optimization Methods for large-traffic NICs, which are worth learning.
Please move to http://blog.sina.com.cn/s/blog_466c66400100bi2n.html
-------------------- The following is the body -------------------------------------
-- Improves performance while saving you 10 times or moreFrom: http://blog.sina.com.cn/iyangjian
I. How to save CPUIi. How to use memory3. Reduce disk I/O4. Optimize Your Nic5. Adjust Kernel ParametersVi. performance metrics of W
Information Revelation brought by Korean dramas
At the same time, NBA events, haolunu movies, Times Magazine, epsn sports news, and fortune forums have not swept across the world, so that everyone on the globe is concerned about them? I remember that the Korean drama "Grand changjin", which was popular a year ago, occupied a large volume of domestic media and entertainment versions. In China, due to Korean drama and Korean stream, people have a s
LeBron James, a basketball LeBron, was born on December 30, 1984 in Akron, Ohio, American professional basketball player and small striker, now serving Cleveland Cavaliers.LeBron James was selected by Cleveland Cavaliers in the first round of the NBA Draft in 2003. In 2003-2010, James played for 7 years in the Cavaliers, during which he won two NBA Most valuable players (MVP). The 2010 transfer to the Miami
encounter setbacks, but also the details of the decision.
The NBA attaches great importance to the Chinese market. They have all the NBA pages, news, all kinds of data translated into Chinese for Chinese users to use, they also invited some stars to do various activities in China.
But what did they ignore? For example, users want to watch a game, nature needs a schedule, the
rice cooker. This is a survey of products. The other one is to spend two hours watch the owner from cutting vegetables to wash vegetables, to cook, to eat, how to wash these bowls, this whole process, found a variety of problems, also get a conclusion, this result is a better, a new generation of kitchen supplies, and this is not related to the rice cooker.
Why multinationals in China are easy to do well
Many large multinational companies in overseas markets will encounter setbacks, but also th
iconBug #16: oricity website Information display incompleteBug #17: Qa.roqisoft the same level title font size is differentBug #18: oricity Forum Some fonts cannot be displayedBug #19: Garbled characters appear on Testfire website pageBug #20: NBA Site Search results page text out of boundsBug #21: oricity Site Directory Name interface problemBug #22: Oricity website registration page text is not alignedBug #23: Weibo website error wordBug #24:
now just a gimmickIn the 1080P screen has become the thousand-yuan machine and even the 799-yuan model standard now, discuss high-end flagship model is equipped with higher resolution screen, highlighting its high-end status, is a difficult problem to avoid. And in order to ensure that its model has been a continuous gimmick can do marketing means, domestic mobile phone brand also played early 2K screen. Last year Meizu launched a high-profile launch
explain the time setting for PHP. PHP is a UNIX-based technology that users need to represent the current time in seconds since January 1, 1970. It's a bit confusing for a general user who doesn't have any programming experience with UNIX systems. However, there is no need to worry, because PHP provides us with a very simple solution, namely the Mktime () function. The user can enter the time that the user wants to represent in the order of hours, minutes, seconds, months, days, and years in th
total number of seconds from January 1, 1970. If you are a UNIX programmer, this algorithm might be reasonable for you. But if you come from Windows or the Macintosh camp, you may just shake your head and sigh and not understand the quirky Unix guys.
But don't be afraid. PHP provides a very useful function mktime (). You just send the order to Mktime () the hour, minute, number of seconds, month, date, and year that you want to represent, and mktime () returns the total number of seconds that d
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