Http://www.bkjia.com/kf/201110/107760.html.
You can use C # To specify the CPU on which the current thread runs.
Pass
System. Diagnostics. Process p = Process. GetCurrentProcess ();P. ProcessorAffinity = (IntPtr) 0x0001;
Process. ProcessorAffinity: sets the shielding word for the current CPU. 0x0001 indicates that CPU 1 is selected, and 0x0002 indicates that
Use Python to write a program that imitates CPU work, and write a program that imitates cpu
Earlier this morning, in my Planet Python source, I read an interesting article "Developing CARDIAC: The Cardboard Computer )", it is about Cardiac's Cardiac computer. some of my followers and readers should know that I have a p
This is a creation in
Article, where the information may have evolved or changed.
First, the conclusion is listed in the front:
Golang performance can be very good, but some native package performance is likely to be retarded, such as RegExp and Encoding/json. If used in high performance requirements, we should optimize according to the actual situation.
The use of ON-CPU/OFF-CPU flame dia
Do you want to know the performance of your CPU?Do you think the testing software is too troublesome?Do you think it would be great to have free testing software?
Now, you can download my own test_cpu program to test your CPU performance ~Simply run the test_cpu.exe program in double-click mode. Wait for 30 seconds to
This article mainly introduces three methods of running time from the start of the python computing program to the end of the program and the CPU time of the program running. for details, refer to the execution time.
Method 1
The code is as follows:
Import datetimeStarttime = datetime. datetime. now ()# Long runn
Execution time
Method 1Copy codeThe Code is as follows:Import datetimeStarttime = datetime. datetime. now ()# Long runningEndtime = datetime. datetime. now ()Print (endtime-starttime). seconds
Method 2Copy codeThe Code is as follows:Start = time. time ()Run_fun ()End = time. time ()Print end-start
Method 3Copy codeThe Code is as follows:Start = time. clock ()Run_fun ()End = time. clock ()Print end-start
Methods 1 and 2 both contain the CPU usage t
code are loaded into memory (in memory, the application's code behaves as a series of ordered sets of instructions), the CPU extracts each instruction in sequence from the entrance of the program and executes it.Loader: The task of the operating system loader is to read the physical file of the executable program in the disk into memory and convert it into a rep
Execution time
Method 1Copy the Code code as follows:
Import datetime
StartTime = Datetime.datetime.now ()
#long Running
Endtime = Datetime.datetime.now ()
Print (endtime-starttime). seconds
Method 2Copy the Code code as follows:
Start = Time.time ()
Run_fun ()
End = Time.time ()
Print End-start
Method 3Copy the Code code as follows:
Start = Time.clock ()
Run_fun ()
End = Time.clock ()
Print End-start
Both Method 1 and Method 2 contain the time that other programs use the
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This article will describe some of the CPU cache related knowledge that a program ape or it practitioner should know
Article welcome reprint, but reproduced when please retain this paragraph text, and placed on the top of the article Lu Junyi (Cenalulu) This article address: http://cenalulu.github.io/linux/all-about-cpu-cache/
Let's
simple increase of the first-level cache size is very low price. As a result, there is a level two cache (L2 cache) that adds a layer of access speed and cost between the first level cache (L1 cache) and the memory. Here is an explanation from the excerpt from what every Programmer should Know in memory:
Soon after the introduction of the cache, the system got more complicated. The speed difference between the cache and the main memory increased again, to a point that another level of
About CPU Cache--The program apes need to know.
This article will describe some of the CPU cache related knowledge that a program ape or it practitioner should know
Article welcome reprint, but reproduced when please retain this paragraph text, and placed on the top of the articleLu Junyi (Cenal
executing other instructions while writing or reading the buffer data, which alleviates the performance impact of the cache miss when the CPU writes data.These buffers become very interesting when subsequent write operations need to modify the same cache rows. Buffer write merges can be performed before subsequent writes are committed to the L2 cache. These 64-byte buffers maintain a 64-bit field, and each byte of update sets the corresponding bit to
These two days to assist operations to locate 1 monitoring program CPU occupancy rate of 150%, the process twists and turns, the conclusion is simple, very interesting:)First, let's look at the high CPU:You can see the red box of the monitoring program CPU consumption is very high, but in fact, the implementation of th
I was a little white, but I learned something slowly through my study. Share it with the wrong lookout for big coffee guides.We have to make it clear that we are learning programming rather than programming languages, and programming languages are just tools to make it easier for us to do a lot of programming.
First of all, I was in the process of learning, the first lesson let me understand things (program and
IIS7.0ISAPIPHP5.2.17MysqlZendOptimizer, however, a serious problem is the high CPU usage... running Environment
IIS7.0 ISAPI
PHP5.2.17
Mysql
ZendOptimizer
Program description
Multiple programs run in the same server environment. The program is a set of old programs that have been used for a long time. Currently, it is optimized for problems that may occur, h
Label:Original address: Http://www.cnblogs.com/Lawson/archive/2011/01/23/1942692.html Very early to see the knowledge of Windbg+sos, has not studied carefully, perhaps because his system is not enough complex, and no online real-world view of the rights, has not learned this knowledge, in recent days carefully found this information, I also wrote a possible high CPU high memory test Web page , found that really good, even if a novice, you can also us
This article mainly introduces how to use Python to compile a program that imitates CPU work, including the implementation of simple memory and input and output. the example in this article requires a certain degree of Python Programming basics, it is an in-depth Python practice. For more information, see the following interesting article "developing CARDIAC" in my Planet Python source earlier this morning:
I have seen windbg + SOS knowledge for a long time and have never studied it carefully. Maybe the system I have built is not complex enough and I have no permission to view it in the real online environment, I have never learned this knowledge. I have carefully searched for this information in recent days and wrote a test web page that may result in high CPU and high memory, even if you have a chance, you can use a tool to guess what went wrong. Of co
We should be clear, according to their own idea of the design of the CPU is just a hardware, really let the CPU can move to complete the task, it depends on the software. The so-called Software is a program written by the instruction system, of course, including the program operation of the data object. We know that th
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