q9300 cpu

CPU clock speed, that is, the clock frequency (cpuClock speed ). In general, the CPU is as high as, And the is the "CPU clock speed ". Many people think that the CPU clock speed is its running speed. The clock speed of the CPU indicates the speed at which the digital pulse s

yesterday, we looked at Nagios alert information and found that one of the servers was overloaded and the machine was a centos system. The information is as follows: 2011-2-15 (Tuesday) 17:50 Warning-load average:9.73, 10.67, 10.49 There are also alert messages issued in the first two hours: 2011-2-15 (Tuesday) 16:50 Warning-load average:10.52, 10.10, 10.06 2011-2-15 (Tuesday) 15:40 Warning-load average:8.27, 9.23, 9.48 first, what does the

CPU Cache Most CPUs only have Level 1 cache and level 2 cache, and some have Level 3 cache.The cache memory is the temporary memory between the CPU and memory. It has a smaller capacity than the memory but is faster than the memory. The data in the cache is a small part of the memory, but this small part is about to be accessed by the CPU in a short time. When th

1:CPU architecture and how it works 2: Operating Systems and processes 3: Metrics to measure CPU busy 4:CPU resources as a symptom of system performance bottlenecks 5: Which processes are the big players that consume CPU resources? 6: Using the SAR tool to analyze CPU utiliz

Metrics to measure CPU performance:1, the user uses the CPU situation;CPU runs regular user processesCPU Running niced ProcessCPU running real-time process2, the system uses CPU condition;For I/O Management: interrupts and drivesFor memory management: page swappingUser Process Management: Process start and context swit

Http://ilinuxkernel.com/?cat=4Linux CPU Utilization principle and accuracy analysis1 CPU Usage Calculation principleUnder Linux/unix, CPU utilization is divided into user state, System State and idle state, which indicate the time that the CPU is in user state execution, the time the system kernel executes, and the tim

Top is the most common command to view CPU usage under Linux, which is powerful and easy to use. But one thing is very bad, is top's working state is full screen, and cannot return. It's hard to get CPU utilization if you want to call the top command in a C program. So we need a simplified version of top. The top command works by reading the stat file under the/proc folder to get

Article Title: CPU load in Linux. Linux is a technology channel of the IT lab in China. Some basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open-source systems view the Nagios alarm information yesterday and find that one of the servers is overloaded with CPU and the machine is CentOS. The information is as follows: 2011-2-15 (Tuesday) 17: 50 W

In general, MySQL optimization can be divided into two levels: one is Optimization at the MySQL level, such as SQL rewriting, index addition, and configuration of various MySQL parameters; the other layer is the operating system and hardware. Operating system-level optimization in general, MySQL optimization can be divided into two levels, one is on the MySQL-level optimization, such as SQL rewriting, index addition, the configuration of various MySQL parameters. The other layer is the optimizat

This article is reproduced from Inter official website: https://software.intel.com/zh-cn/articles/book-Processor-Architecture_CPU_work_processThe working process of the CPUThe basic work of the CPU is to execute the stored instruction sequence, which is the program. The process of executing a program is actually the process of constantly taking out instructions, analyzing instructions, and executing instructions.The

　　 CPU Constitution What do you mean? In layman's parlance,CPU constitution refers to the working voltage of the CPU, the same CPU, the lower the voltage, the better the representative constitution. For the computer small white, may the CPU physique is relatively unfamili

Linux command ---- analyze CPU bottlenecks to measure CPU performance indicators: 1. CPU usage; CPU running regular user processes CPU running nicedprocessCPU running real-time processes 2. CPU usage; for IO management: interrupt

/proc/pid/task directory. They are interfaces that read thread information./proc/cpuinfo fileThis file contains information about the CPU (model number, cache size, etc.).[Email protected] ~]$ Cat/proc/cpuinfoprocessor:0Vendor_id:genuineintelCPU Family:15Model:4Model Name:intel (R) Xeon (TM) CPU 3.00GHzStepping:10CPU mhz:3001.177Cache size:2048 KBPhysical id:0Siblings:2Core id:0CPU Cores:1Fdiv_bug:noHlt_bug

Meaning of cpu usage in linux top Command, linuxtop Meaning of cpu usage in linux top Command[Respect for original articles from: http://www.iteye.com/topic/1110848]CPU usage of 0.3% us user space1.0% sy CPU usage in kernel space0.0% percentage of CPU used by processes that

1. clock speed The clock speed is also called the clock frequency. The unit is MHz, which indicates the computing speed of the CPU. CPU clock speed = frequency X frequency doubling coefficient. Many people think that the clock speed determines the CPU running speed. This is not only one-sided, but also a misunderstanding of the server. So far, there is no definit

Tag: Service return activity produces STR output file system report htmObjectiveWhat is performance optimization? Personally, performance optimization is intended to improve application or system capabilities. So how can you achieve tuning your application performance? A lot of content is designed here, including the Linux kernel, CPU architecture, and the allocation and management of resources to the Linux kernel, understanding the process creation p

The following content comes from the reprint and its own initial experience. Vmstat [Root@master ~]# vmstat-n 3procs-----------Memory-------------Swap-------io------system-- -----CPU------R b swpd free buff cache si so bi bo in CS US sy ID WA St0 0 115516 6043024 430340 8691840 0 0 2 22 1-1 1 0 99 0 00 0 115516 6043024 430340 8691840 0 0 0 0 1124-751 0 0 100 0 00 0 115516 6043148 430344 8691840 0 0 0 25 1070-762 0 0 100 0 0 PROC If the sequence runni

CPU of Linux system and performance monitoringPerformance optimization is the process of finding bottlenecks in system processing and removing them. This article was translated by sanotes.net webmaster Tonnyom in August 2009 from the Linux System and performance monitoring series. This article is the first in a series that describes CPU performance monitoring. Tonnyom Source: sanotes.net|2010-

In the Linux system, the software and hardware information of proc file system display system is supplied. If you want to understand the system of CPU suppliers and coherent device information, it can be obtained through the process/proc/cpuinfo file. This article makes a brief summary of the file.Unlike the/proc/cpuinfo file generated by the instruction set (ISA) CPU, the/proc/cpuinfo file based on the X86

balanced definition of the various OS subsystems. These subsystems include:CPUMemoryIoNetworkThese subsystems are mutually dependent, and any high load will cause problems in other subsystems. For example:Memory queue congestion caused by a large number of page call requestsThe large throughput of the NIC may cause more CPU overhead.A large amount of CPU overhead will try more memory usage requestsA large