BACKGROUND OF THE INVENTION The use of a cache memory with a processor facilitates the reduction of memory access time. The fundamental idea of cache organization is that by keeping the most frequently accessed instructions and data in the fast cache…

APPLIES TO: Oracle Product Hub - Version 12.1.1 to 12.1.1 [Release 12.1] Oracle Inventory Management - Version 12.1.1 to 12.1.1 [Release 12.1] Oracle Item Master - Version 12.0.6 to 12.0.6 [Release 12] Information in this document applies to any plat…

By Ilya Grigorik on June 23, 2009 Measuring and optimizing IO performance is somewhat of a black art: the tools are there, the resources and discussions are plenty, but it is also incredibly easy to get lost in the forest. I speak from recent experie…

BACKGROUND Processor power consumption has become a major issue in recent years. The current trend of processor design to multi-core architecture as eased the pressure on power consumption. However, power consumption still grows linearly with the num…

BACKGROUND OF THE INVENTION This relates to Input/Output (I/O) performance in a host system having multiple processors, and more particularly, to efficient usage of multiple processors in handling I/O completions by using interrupt affinity schemes t…

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http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

A code sequence made up multiple instructions and specifying an offset from a base address is identified in an object file. The offset from the base address corresponds to an offset location in a memory configured for storing an address of a variable…

@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…

背景 最近一段给xx做项目,这边最头疼的事情就是数据库入库瓶颈问题. 环境 服务器环境:虚拟机,分配32CPU,磁盘1.4T,4T,5T,6T几台服务器不等同(转速都是7200r),内存64G. 排查步骤 排查一:数据库恢复模式为简单模式,数据库和tempdb的初始大小.数据库文件初始化大小100G,日志文件初始化大小50G,两个文件都是自动增长(按10%):tempdb初始化大小10G*4个文件,日志5G*4个文件,两个文件都是自动增长(按10%),分布在两个磁盘中(但看了这篇文章后,有点傻眼…