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Free-m memory information query, cat/proc/cpuinfo cpu Information Query instance explanation, proccpuinfo

@ server ~] # Cat/proc/cpuinfo | grep "processor" | wc-l 4. Enable hyper-threading: [root @ server ~] # Cat/proc/cpuinfo | grep-e "cpu cores"-e "siblings" | sort | uniq cpu cores : 4siblings : 4 Assume that cpu cores = siblings indicates that it is not enabled. processor : 0vendor_id  : GenuineIntelcpu famil  : 6model     : 15model name  : Intel(R) Xeon(R) CPU X5355 @ 2.66GHzstepping   : 7cpu MHz   : 2666.766cache size : 4096 KBphysical id : 0siblings : 4core id   : 0

Arm Cross compiler Gnueabi, None-eabi, Arm-eabi, GNUEABIHF, Gnueabi difference

, which have different strategies for floating-point operations (with a FPU arm to support both floating-point operation policies). In fact, these two cross compilers are just GCC options-mfloat-abi default values are different. GCC option-mfloat-abi has three values soft, SOFTFP, hard(both of which require the FPU floating-point unit in arm, soft is compatible with the latter, but SOFTFP and hard two modes

Cross-compilation tool chain

, Eabi is embedded on the platform (such as arm,mips, etc.). ARM-LINUX-GNUEABI-GCC and ARM-LINUX-GNUEABIHF-GCC The two cross compilers are suitable for Armel and ARMHF two different architectures, and Armel and ARMHF have different strategies for floating-point operations (with the FPU arm to support both floating-point arithmetic strategies). In fact, these two cross compilers are only GCC's option-mfloat-abi the default values are different. GCC opt

ARM Cross Compiler Brief introduction

(with the FPU arm to support both floating-point arithmetic strategies). In fact, these two cross compilers are only GCC's option-mfloat-abi the default values are different. GCC options-mfloat-abi have three values soft, SOFTFP, hard (both of which require the FPU floating point unit in arm, soft and the latter are compatible, but SOFTFP and hard two modes are incompatible): Soft : Use the software mode

Windows 8.1/server r2/embedded 8.1 with Update 3 (MSDN latest Edition)

Microsoft updated the ISO with update 3 on December 16, and this update will not significantly improve the user interface experience, please check MD5 after downloading. I have compiled the 8.1/Server version / embedded version/multi-language pack in English and Chinese.1,windows 8.1 with update (including Update 3 of 8.1)Link: Http://pan.baidu.com/s/1sl9t42D Password: n61nWindows 8.1 with Update (multiple editions) (x86)-DVD (中文版)File name: En_wind

Java Inheritance and polymorphism

One1. Media DatabasePackage DOME;//CD class public class CD {private string title;//name private string artist;//singer private int numoftracks;// Several songs private int playingtime;//play time private Boolean gotit;//whether to lend private String comment;//Comment//Constructor Initialize object public CD (String Title, string artist, int numoftracks, int playingtime, string comment) {super (); this.title = Title;this.artist = Artist;t His.numoftracks = Numoftracks;this.playingtime = Playing

Simplifying SQL for multi-layer Grouping association calculations

in the development of database application, we often need to face complex SQL computation, such as the correlation computation in multi-layer grouping. Because SQL grouping must be aggregated at the same time and object-related access is not possible, dealing with such problems can be complex and can only be accomplished with advanced techniques for nesting multi-layered subqueries with window functions. The collector supports true grouping, intuitive object-related access, and easier resolution

From cortex-m3 to cortex-M4 (4) -- Cortex-M3, 4 Comparison

generation of Cortex-M series. Some commands in the preceding table are SIMD commands. Work with hardware multiplier (MAC) so that all these commands can be executed within a single cycle. Benefiting from the support of SIMD commands, the Cortex-M4 processor is able to complete up to 32x32 + 64-> 64 operations in a single cycle, releasing the bandwidth of the processor for other tasks, instead of consuming computing resources by multiplication and addition. Consider the following complex arithm

I encountered a problem when using k3b to burn

I encountered a problem when using k3b for burning-Linux general technology-Linux technology and application information. The following is a detailed description. Question: System ----------------------- K3b Version: 1.0.5 KDE Version: 3.5.10-13. fc11 Fedora QT Version: 3.3.8b Kernel: 2.6.29.6-217.2.8.fc11.i686.PAE Devices ----------------------- Atapi dvd a DH16A3L 8H1B (/dev/sr0,) [CD-R, CD-RW, CD-ROM, DVD

Guangzhou Top Hui Electronic Technology Co., Ltd. Server vigorously promote the price is very good

Guangzhou top-Hui Electronic Technology Co., Ltd.Note: This report spot stock quote only do internal price limit as minimum standard below this price no one is allowed to ship.**************************************************************************************************Server vigorously promote the price is very goodTower Server (Note that the individual is quite a desktop hard drive enterprise is a server hard disk)T20 G3220 4G 500GSATA Normal personal (no internal optical drive) 2000T20 e3

How to Create hdvd

Author: Feng Qiang 2004.11.15 Skynet link: http://www.yesky.com/ColumnArea/217034812114862080/20041118/1877267.shtml The so-called hdvd (high-capacity DVD) has been on the market for a long time. At that time, netizens from some technical websites had a very lively discussion until the hdvd discs of a large number of TV series on the market hit the genuine market, the hdvd issue was followed by the media. Hdvd, analyzedArticleI will not go into de

Arm Cross compiler differences between Gnueabi, None-eabi, Arm-eabi, GNUEABIHF

to the assembly language generated by the compatible compiler. The main difference between the two is that the ABI is on the computer, Eabi is embedded on the platform (such as arm,mips, etc.).ARM-LINUX-GNUEABI-GCC and ARM-LINUX-GNUEABIHF-GCCThe two cross compilers are suitable for Armel and ARMHF two different architectures, and Armel and ARMHF have different strategies for floating-point operations (with the FPU arm to support both floating-point a

"Go" arm Cross compiler Gnueabi, None-eabi, Arm-eabi, GNUEABIHF, Gnueabi differences

-GNUEABIHF-GCCThe two cross compilers are suitable for Armel and ARMHF two different architectures, and Armel and ARMHF have different strategies for floating-point operations (with the FPU arm to support both floating-point arithmetic strategies).In fact, these two cross compilers are only GCC's option-mfloat-abi the default values are different. GCC options-mfloat-abi have three values soft, SOFTFP,hard (both of which require the

Learning the compilation of a good book "assembly language programming" in Linux

mathematical functions 9.1 FPU Environment 9.1.1 FPU register stack 9.1.2 FPU status, control, and Mark register 9.1.3 use FPU Stack 9.2 basic floating point operations 9.3 Advanced floating point operations 9.3.1 floating point function 9.3.2 partial remainder 9.3.3 trigonometric function 9.3.4 logarithm Functions 9.

8259a address 0x21 and 0xa1 's role

Thisone'll describe the devices connected to each of those inputs, for NOWWE would concentrate on What the 8259 does with those inputs. Nevertheless,for the sake of discussion, the following table lists the interrupt the PC: 8259 Programmable Interrupt Controller Inputs Input on 8259 80x86 INT Device IRQ 0 8 Timer Chip IRQ 1 9 Keyboard IRQ 2 0Ah Cascade for Controller2 (IRQ 8-15) IRQ 3 0Bh Seria

Linux System release image download (2)

Fedora iso image download:Fedora is an open, innovative, forward-looking operating system and platform based on Linux. It allows anyone to use, modify, and redistribute freely, both now and in the future. It is developed by a strong community of members who, with their tireless efforts, provide and maintain free, open-source software and open standards. The Fedora project has been managed and controlled by the Fedora Foundation and is supported by Red Hat, Inc. Operational architectures include

System status detection and Process Control

View Linux Server CPU Two Guiding Principles # CPU with the same core ID is hyper-threading of the same core # # A cpu with the same physical ID is a thread or core encapsulated by the same CPU # CAT/proc/cpuinfo | grep 'siblings' [[Email protected] ~] # Arch# This is my R51 old notebook # I686 [[Email protected] ~] # Cat/proc/cpuinfo # This is my R51 old notebook # Processor: 0 # This indicates the first CPU kernel from 0 # Vendor_id: genuineintel CPU family: 6 Model: 13 Model name:Intel (

Cpuid Assembly command

Use the cpuid Assembly command (machine code: 0fh a2h, if your compiler does not support cpuid command, only emit machine code), this command can be recognized by the following CPU: More than 486 of Intel CPUs, CPU above cyrix M1, CPU above amd am486 (1) obtain the cpu oem string to determine the CPU vendor Let eax = 0 first, then call cpuid InEl CPU will return: EBX: 756e6547h 'genu'EdX: 49656e69h 'inei'ECX: 6c65746eh 'ntel'EBX, EDX, and ECX will be connected to genuineintel. The

Browser-based Linux

(information can be transmitted through the clipboard device in Linux between users and virtual machines) This is a virtual machine that uses JavaScript to simulate the x86 instruction set using qemu and runs on a browser (my Firefox runs normally. This machine runs a Linux kernel of 2.6.20, the related information of this virtual machine can be seen on the tech page published by the author. You can also log on to the VM and check it. It is found that the file system is made of busybox. Most Li

Linux OS versions iso image downloads (including Oracle linux\redhat\centos\u

Tags: Linux operating system version of the ISO image downloadLinux OS versions iso image download (including Oracle Linux\redhat\centos\ubuntu\debian, etc.)February 25, 2015, 7:491. Oracle Linux () (1) Oraclelinux-release6-update0-x86_64-dvd.iso(2) Oraclelinux-release6-update1-x86_64-dvd.iso(3) Oraclelinux-release6-update2-x86_64-dvd.iso(4) Oraclelinux-release6-update3-x86_64-dvd.iso(5) Oraclelinux-release6-update4-x86_64-dvd.iso(6) Oraclelinux-release6-update5-x86_64-dvd.iso(7) Oraclelinux

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