bianchengzhimei11（bianchengzhimei11）.doc

bianchengzhimei11（bianchengzhimei11） Title let CPU occupancy curve listen to you command The problem Write a program that lets the user determine the CPU utilization rate of the Windows Task Manager. cheng The more streamlined, the better the computer language is. For example, you can implement the following three scenarios: 1. The CPU occupancy rate is fixed at 50%, which is a straight line; 2. The CPU occupancy rate is a straight line, but the specific occupancy rate is determined by the command line parameters (parameter range 1 ~ 100); 1.1 let the CPU occupancy curve listen to your command 2 3. The CPU utilization rate state is a sine curve. Analysis and solution 1 One student wrote the following code: While (true) { If (busy) I++; The else } Then she got into a puzzle: what else did she do? How do you keep your computer from doing things? CPU utilization At 0, what is the CPU? Another student spent a lot of time thinking about how to go deep into the kernel and control it CPU occupancy -- but is it really that complicated? Some interns from MSRA TTG (Microsoft Research Asia, Technology Transfer Group) have written To solve this problem, the simple program they write can achieve the results shown in figure 1-1. Figure 1-1 encodes the CPU occupancy rate to represent the sine curve It seems that this is not an impossible task. Lets take a closer look at the problems that were encountered when writing programs, such as The author notes that many people are a little surprised when they hear the question. I gave them my laptop and said, this is open You can search the Internet and do anything. The first thing most interviewees do on their computers is to search for CPU control 50 percent of the key words, of course, did not find any direct result, but after the book was published, the situation may not be the same. 1.1 let the CPU occupancy curve listen to your command 3 If we accidentally wrote a dead loop, the CPU would jump to the highest, and it would remain 100%