best cpu

Hyper-V 3 limits the CPU utilization of virtual machines. Windows Server 2012 is coming soon. The latest Hyper-V 3 brings us more surprises, in the next three blog posts, we will learn about the virtual machine CPU competition mechanism. Part 1: CPU resources allocated to virtual machines; Part 2: limits the CPU usage

/proc/cpuinfo File AnalysisAccording to the following content, we can easily know the current system about the CPU, CPU, the CPU is enabled Hyper-threading and other information. Logical Core: Cat/proc/cpuinfo | grep "Processor" | Wc-l//the ID of the logical processor(number of logical cores)Query systemNumber of CPUs: Cat/proc/cpuinfo | grep "Physical ID" | Sort

No free lunch in the world, this article reproduced in: http://cenalulu.github.io/linux/all-about-cpu-cache/ Let's take a look at a mind map of all the concepts in this article:Why do I need a CPU CacheAs the process has increased in recent decades, CPU frequency has been increasing, and is subject to manufacturing processes and cost constraints, the curren

In fact, as long as #include Long num = sysconf (_SC_NPROCESSORS_ONLN); You can get the current number of CPUs ... Judge the basis:1. CPUs with the same core ID are the same core hyper-threading.2. CPUs with the same physical ID are the same CPU-encapsulated threads or cores. English version:1.Physical ID and core ID are not necessarily consecutive but they unique. Any CPUs with the same core ID are hyperthreads in the same core.2.Any

CPU as the core of PC computer accessories, the probability of failure is not large. The CPU processor in normal use, if not overclocking, generally will not appear any problem. Of course, due to the cooling fan shutdown, the radiator and the CPU bad contact caused by the frequent panic, restart failure is often occurred. For some older

This text address:http://cenalulu.github.io/linux/all-about-cpu-cache/ Let's take a look at a mind map of all the concepts in this article.Why do I need a CPU CacheAs the process has increased in recent decades, CPU frequency has been increasing, and is subject to manufacturing processes and cost constraints, the current memory of the computer is mainly DRAM

How to view machine configuration under Linux? cpu/Memory/HDDDmesgDisplays the boot information. The kernel will store the boot information in the ring buffer. If you are too late to view the information, you can use DMESG to view it. The boot information is also saved in the/var/log directory, in a file named DMESGDmesg|grep HDHard diskDmesg|grep CPUCpuDMESG|GREP procMemoryDmesg|grep RedhatOperating systemDmesg|moreMore informationUname-aOperating sy

Solving the performance problems of a database system can be a daunting task. It is important to know how to find the problem, but it is more important to understand why the system responds specifically to specific requests. Affect CPU utilization on the database server There are many factors: compiling and recompiling SQL statements, missing indexes, multithreaded operations, disk bottlenecks, memory bottlenecks, routine maintenance, and extraction,

All the time, I always thought that the CPU is really the combination of various logic gate devices as described in the book on the principle of computer composition in the past year. When you see nanotechnology, do you really think that you can make those devices so small? Until we saw the Intel CPU production process and AMD chip production process of the introduction can not help feeling, the original te

From: http://www.cnblogs.com/xd502djj/archive/2011/03/01/1968041.html 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

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

CPU is one of the main factors affecting Linux performance. Vmstat command: displays brief information about the performance of various system resources.The r in the procs column indicates the number of processes that run and wait for the CPU time slice. If this value exceeds the number of CPU for a long time, it indicates that the

The key to monitoring the CPU and memory of the switch is to find the correct OID, please refer to the following blog post for how to find the OID.http://tryrus.blog.51cto.com/10914693/1788833Before looking at this blog post please make sure that you have an understanding of the basic operation of Zabbix, there is no clear place to read my previous blog post.http://tryrus.blog.51cto.com/10914693/1772271http://tryrus.blog.51cto.com/10914693/1782062Firs

During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top command, the CPU usage status is displayed in full-screen mode, and will be in the dialog-using top-based commands, you