thinkcentre cpu

During system maintenance, you may need to check the CPU usage at any time and analyze the system status based on the relevant information. In centos, you can use the top command to view CPU usage. After the TOP Command is run, the CPU usage status is displayed in full screen mode and in dialog mode. The top-based command can be used to control the display mode.

In linux, you can use top or vmstat to view the system's CPU usage. In most cases, the CPU usage is accurate, but in real-time linux systems with high time precision, the CPU usage measured by top may be inaccurate. The following uses the top principle and real-time linux instances to analyze the usage of top in the real-time system. When calculating the

Getting started with Linux: How do I know which CPU kernel the process runs on? Problem: I have a Linux Process running on a multi-core processor system. How can I find out which CPU kernel is running this process? When you run a high-performance HPC (high-performance computing) program or a program that consumes a lot of network resources on a multi-core NUMA processor,

The basic idea is how to make the CPU hyper-threading or multi-core more balanced and efficient use. We know that there is always a CPU dedicated to responding to the NIC interrupt requests. If the network request package is very large, A single CPU may not be able to handle the problem. Therefore, you need to activate multi-core or hyper-threading to distribute

We know that all servers are now multi-core, and the latest intel sandybridge is the NUMA Io structure. Taking the NIC as an example, that is to say, the PCI slot is not connected to the CPU through a bridge like westmere, currently, SNB directly links PCI to the CPU. Sometimes when we test performance, we can see that the performance is high or low. The reason is hard to find and confused. Next I will lis

In the previous tutorial to see the CPU temperature, we share a lot of CPU temperature detection software, including: Cpu-z this software. In addition to having the ability to view CPU temperature, Cpu-z has a lot of functionality. In today's tutorial, we will give you a sto

Psutil is a cross-platform library that makes it easy to get the process and system utilization (CPU, memory, disk, network, etc.) information of the system running, mainly used for system monitoring, analyzing and restricting the management of system resources and processes, which implements the functions provided by equivalent command line tools, such as Ps,top,lsof, Netstat,ifconfig,who,df,kill,free,nice and so on. Supports 32-bit, and 64-bit Linux

From: http://www.icembed.com/info-19346.htm With the rapid development in the field of digital communication and industrial control, dedicated Integrated Circuits (ASIC) are required to have higher and higher functions, lower power consumption, and shorter production cycle, these all pose a huge challenge to the chip design. The traditional chip design method can no longer meet the complex application requirements. 1 Introduction SOC (system on a chip) is becoming increasingly popular with

The Windows Task Manager can view the CPU usage.The CPU runs continuously. As long as the CPU is powered on, the command is executed, and the NOP operation is executed even if nothing can be done. Therefore, the low CPU usage of Windows does not mean that there is nothing to do with the

------ For English documents, see documentation.html of android-ndk-r5b. Part of Android Native Development Kit (ndk) See http://developer.android.com/sdk/ndk/ (Agent required) Translation is personal opinion only ----------------- Android ndk CPU features detection Library: Android ndk CPU Feature Detection Library: ------------------------------------------- This ndk provides a small library named "cpu

32-bit CPUs contain the following registers: Four data registers (eax, EBX, ECx, and EDX)2 address changes and pointer registers (ESI and EDI) 2 pointer registers (ESP and EBP)Six segment registers (ES, Cs, SS, DS, FS, and GS)1 Instruction Pointer register (EIP) 1 flag register (eflags) 1. Data RegisterData registers are mainly used to save information such as the operands and operation results, thus saving the time required to read the operands by occupying the bus and accessing the memory.The

1. HDDDf2. Memory Free3. How to correctly identify the number of CPUs and the number of cores with Linux commands Cat/proc/cpuinfo |grep Physical |sort-u |wc-l This command is to view the number of CPUs. Basis of judgment:1. CPUs with the same core ID are Hyper-threading of the same core.2. CPUs with the same physical ID are the same CPU-encapsulated thread or cores.English version:1.Physical ID and Core ID is not necessaril

Recently, a timestamp system was written to record some important time nodes of each module in the system. Getting the kernel escalation timestamp is through the process polling, but found that the process in the actual running CPU utilization is very high, which is a dead loop in reading the device files, this thought is due to read system calls too frequent reasons.Then write a test program, which is just an empty loop. It turns out that the

Summer may be you are high game or movie, suddenly the computer blue screen crashes, and then most people will think directly is not the problem of the system, and then reload the system, if it is a system problem, after the system reload the problem will be solved. If still often appear blue screen, it is not a software problem, then can only be hardware problems, most people face this situation will be sent to overhaul, and overhaul when the staff most often encountered is the

Most computer users have encountered the problem of excessive CPU temperature, in the end, how much of the CPU temperature is normal? Today small make up for everyone to clean up the desktop computer and laptop CPU temperature too high solution, take a look! Cpu In general, the

CPU Tuning How the CPU processes data: 1: Batch processing, sequential processing requests. (Less switching times, larger throughput) 2: time-sharing processing. (like "exclusive", throughput is small) (Time slices, the request is divided into one piece of time, a piece of the CPU processing) we are using x86 is this architecture 3: Real-time processing. Batch p

Http://blog.csdn.net/nineday/archive/2007/12/11/1928847.aspx Under Linux, CPU utilization is divided into user state, System State and idle state, respectively, the CPU in user state execution time, system kernel execution time, and idle system process execution time, the sum of the three is CPU total time, when no user process, system process, etc. need to execu

Article Title: cpu affinity settings. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. # Include # Include # Include # Include Int main (int argc, char * argv []) { Int num = sysconf (_ SC _NPROCESSORS_CONF ); Int created_thread = 0; Int myid; Int I; Int j = 0; Cpu_set_t mask; Cpu_set_t get; If (argc! = 2) {

The most intuitive benefit of binding a process to the CPU is to reduce cache synchronization and switching between CPUs, increase the hit rate of the CPU cache, and improve the efficiency of the Code.From the CPU architecture, NUMA has independent local memory, the nodes can be exchanged between the modules to connect and information interaction, so each

Partial reprint 51942281The iostat command is used to monitor system input and CPU usage. It is characterized by the reporting of disk activity statistics, as well as the reporting of CPU usage. like Vmstat, Iostat also has a weakness, that is, it cannot analyze a process in depth, only the overall situation of the system. Iostat Monitoring I/O subsystemThe IOSTAT is an abbreviation for I/O statistics (inpu