Linux Read ACPI Table Tools. ACPI tools的安装： #yum install acpica-tools 或者到下面链接下载源码： https://www.acpica.org/downloads 下面示例是解析SSDT1表的步骤。 #acpidump -o ACPI_table.out #acpixtract -a ACPI_table.out Intel ACPI Component Architecture ACPI Binary Table Extraction Utility version 20150619-64 Copyright (c) 2000 – 2015 Intel Corporation Acpi table [BDAT] – 48 bytes written to bdat.dat Acpi table [APIC] – 772 bytes written to […]
READ MORE »Posts in category 服务器硬件
[转]System Address Map Initialization in x86/x64 Architecture Part 2: PCI Express-Based Systems
http://resources.infosecinstitute.com/system-address-map-initialization-x86x64-architecture-part-2-pci-express-based-systems/
READ MORE »[转]System Address Map Initialization in x86/x64 Architecture Part 1: PCI-Based Systems
http://resources.infosecinstitute.com/system-address-map-initialization-in-x86x64-architecture-part-1-pci-based-systems/
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[转]DDR4内存基础
HP提供的DDR4 For Dummies，非常好的DDR4入门资料。 点击下载：DDR4 For Dummies
READ MORE »服务器单根内存理论读写带宽计算方法
在配置服务器内存时，遇到不同频率及型号的内存条。对于单根DDR2/DDR3/DDR4内存条的理论读写带宽，可以用以下公式计算： 理论读写带宽 = 频率*位宽/8bits 如： DDR3-1600的读写带宽为1600Mbit/s*64bit/8bit = 12800MB/s，通常标注为PC3-12800 DDR3-1333的读写带宽为1333Mbit/s*64bit/8bit = 10664MB/s，通常标注为PC3-10600 DDR4-2133的读写带宽为2133Mbit/s*64bit/8bit = 17064MB/s，通常标注为PC4-2133
READ MORE »Linux内核报错“General protection fault”原因
在Linux系统中，偶尔遇到内核报告”General protection fault”或#GP Fault，然后panic，系统宕机。在Intel编程手册中指出，General protection fault中断号为13，表示内存访问或保护检查出现异常。14号中断就是我们所熟悉的页面异常。 12 #SS Stack-Segment Fault Fault Yes Stack operations and SS register loads. 13 #GP General Protection Fault Yes Any memory reference and other protection checks. 14 #PF Page Fault Fault Yes Any memory reference. 以下是”General protection fault”更为详细的解释。 A general protection fault (GPF) in the Intel x86 and AMD […]
READ MORE »[转]Evolution of Intel’s Basic Microarchitectures
介绍Intel CPU微架构的演变。 1. Introduction 2. Core 2 3. Penryn 4. Nehalem 5. Nehalem-EX 6. Westmere 7. Westmere-EX 8. Sandy Bridge 9. Overview of the evolution 来源：http://users.nik.uni-obuda.hu//sima/oktatas.htm 下载：Evolution of Intel’s Basic Microarchitectures
READ MORE »[转]DDR3 Config Recommendations
1、DDR3内存介绍 Memory technology cheat sheet Memory Technology Comparison DDR3 DIMM population rules DDR3 SDRAM DIMM Introduction Memory Ranking Considerations Customer choice with DDR3 2、DDR3内存配置优化 Optimizing for Capacity Optimizing for Performance Optimizing for Performance: Latency Optimizing for Performance: Throughput 点击下载
READ MORE »[转]硬盘基础知识-Western Digital Drive Basic
来源：http://www.slideshare.net/cangmang/western-digital-drive-basic 文件名：《Western Digital Drive Basic》PPT 主要内容： 1、硬盘主要部件介绍 2、数据记录原理基础 3、读写磁头基础 4、硬盘盘片Basics 5、硬盘磁头Basics 6、WD Head Technology 下载链接：Western.Digital.Drive.Basic.ppt
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