hyper v linux performance

Article Title: Linux performance monitoring and tuning (CPU ). 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. In fact, there are many articles on this part on the Internet. Why is

Linux Performance Testing Tool Lmbench is a simple and Portable Micro-evaluation tool that complies with the ANSI/C standard for UNIX/POSIX. In general, it measures two key features: Response Time and bandwidth. Lmbench aims to give system developers an insight into the underlying costs of key operations. 1. Use and introduction of Linux

When there is a problem with the Linux system, we not only need to look at the system log information, but also use a lot of performance monitoring tools to determine what part (memory, CPU, hard disk ...). ) out of the question. In the Linux system, all the operating parameters are saved in the virtual directory/proc, in other words, we use the

Although valve introduced steam and games to the Linux platform, the father of GNU worried that the anti-piracy mechanism against the free and open source principles of DRM, however, the support of mainstream game vendors in Linux systems is still a milestone, which is still a major advantage and disadvantage for promoting the development of Linux. Valve is not a

Linux performance optimization 7: Cropping System Services 6: selecting IO scheduling algorithms http://www.2cto.com/os/201307/228389.html Generally, application services are deployed. for a single server, only a single service is provided. even cluster technology and distributed technology are used for multiple servers... linux

If you are looking for a very easy-to-use Linux performance monitoring tool, I strongly recommend installing and using the Nmon command line utility. Nmon Monitoring Tool Nmon is a system administrator tuning and benchmarking tool that displays performance data for the following: Processor Memory Network Disk File System Network File System NFS) P

OverviewFor the behavior of the network, can be divided into 3 paths: 1) Send path, 2) forwarding path, 3) receive path, and network performance optimization can be based on these 3 paths to consider. Since the forwarding of packets is generally concerned with the device with the routing function, it is not described in this paper, if readers are interested, they can learn by themselves (in the Linux kernel

Linux-CPU performance optimization, Preface What is performance optimization? In my opinion, performance optimization aims to improve application or system capabilities. So how can we optimize the performance of the application? We have designed a lot of content here, inclu

CPU Performance Metrics 1. Ratio of CPU used by user process 2. Ratio of CPU used by system process 3. Wio, waiting for I/O but the CPU is in idle state ratio. 4. CPU Idle Rate 5. CPU Ratio for context exchange 6,nice 7,real-time 8, run the length of the process queue 9, average load the common tools for monitoring CPU performance under Linux are 1. Iostat Only

Linux has always been impressed by the server level. Although some people use it as a desktop or a mobile phone, it is a minority, almost no one has ever put it on the backbone network as a router, even if it is the access layer, almost no one uses Linux. The netfilter mechanism can change this fact, because the netfilter mechanism is too powerful, it almost allows you to completely re-customize the protoco

Linux has always been impressed by the server level. Although some people use it as a desktop or a mobile phone, it is a minority, almost no one has ever put it on the backbone network as a router, even if it is the access layer, almost no one uses Linux. The Netfilter mechanism can change this fact, because the Netfilter mechanism is too powerful, it almost allows you to completely re-customize the protoco

First, we understand the virtual memory and physical memory: the virtual memory is to use the hard disk to expand the physical memory, write unused memory pages to the hard disk to free up more physical memory for use by processes in need. When these memory pages require pi, they are read back from the hard disk. All this is transparent to users. In Linux, virtual memory is a swap partition. On X86 systems, the virtual memory is divided into 4 K pages

Disk I/O performance is an important indicator to measure the overall performance of computers. Linux provides the iostat command to obtain disk input/output (I/O) statistics, while Windows provides the WMI interface, you can write a simple script to obtain functions equivalent to iostat. 1. Linux iostat command Iostat

worth noting that even if the IO performance is not ideal, it does not necessarily mean that the application performance is not good, can be used such as pre-read, write cache policies to improve application performance7.free-mThe free command can see how the system memory is used, and the-m parameter indicates that it is displayed in megabytes.The last two columns represent the number of memory used for t

Many system administrators often simplify the process of encountering performance problems, relying on hardware upgrades, larger memory and stronger CPUs to solve problems, in fact, with some simple Linux commands, you can find many management host details and can quickly and easily solve performance problems. Here is a brief introduction to you.First, topFor man

The Nmon is a system administrator-oriented tuning and benchmarking tool that can be used to display performance data about the following: Processor Memory Internet Disk File system Network File System (NFS) The process that consumes the most resources Resources Power Micro-Partitioning One of the places I really like about this tool is that it's completely interactive and can help

current operational state of the system by calculating the data and scale. It is characterized by a continuous sampling of the system, the acquisition of a large number of sampling data, sampling data and analysis of the results can be stored in the file, the required load is very small. The SAR is one of the most comprehensive system performance analysis tools on Linux, which can be used to report the act

, Context switch, run queue, CPU utilization.Bottom linePrevious Linux Performance monitoring: the introduction of performance monitoring before the need to know the bottom line, then monitor the CPU performance of the bottom line is what? Usually we expect our system to reach the following goals: CPU utilizat

Article Title: Linux Log File System and Performance Analysis (group chart ). 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. The log file system can ensure the integrity of the ove

Linux performance tuning 5: tuning an important role in soft raid storage. RAID independent redundant disk arrays are classified into two types: raid card-based hard raid (hardware implementation, high speed, suitable for large applications), system-based soft raid (generally included in the kernel, performance is not as good as hard...