Author Archives: daveti

Unknown's avatar

About daveti

Interested in kernel hacking, compilers, machine learning and guitars.

design: dynamic kernel machine – dkm

Posted on November 2, 2010 by daveti
Posted in AI/ML, Dave's Tools | Tagged | Leave a comment

dave’s random integer generator – drig

Posted on November 2, 2010 by daveti

Project Name: drig Destination: A Java Swing GUI application for demo random integer generation with given range and number requested – random lucky numbers generation for lottery. Language: Java IDE: NetBeans Project Web: http://kenai.com/projects/drig SVN address: https://svn.kenai.com/svn/drig~drig-src Source Code: http://kenai.com/projects/drig/sources/drig-src/show … Continue reading →

Posted in Dave's Tools | Tagged , , , , , | 2 Comments

SVN quick guide for kenai project

Posted on November 2, 2010 by daveti

A quick reference of svn on kenai project to submit, checkin and checkout source code as a dev. The intro focuses on Windows SVN with http/https and take ‘drig’ as an example. Great thanks to official help page: Using Subversion on … Continue reading →

Posted in Programming | Tagged , , | Leave a comment

time measurement for function call

Posted on October 28, 2010 by daveti

Episode usage of ‘gettimeofday()’ and ‘times()‘ On Unix/Linux machine to measure the time consumption for certain function call, ‘gettimeofday’/’times’ would be 2 major ways. Better than ‘gettimeofday’, ‘times’ could provide detailed time info for user, system, child… 1. gettimeofday() #include … Continue reading →

Posted in Programming | Tagged , , , , , | Leave a comment

kernel design approaches

Posted on October 27, 2010 by daveti

A digest for kernel-wide design from wikipedia (including ALL the pics and some definitions) 1. Monolithic kernel (宏内核) a: entire OS in kernel space and supervisor mode (eg, ring 0); b: a set of primitives or system calls for ALL … Continue reading →

Posted in OS | Tagged , , , , , , , | Leave a comment

trap – signal handling in shell

Posted on October 24, 2010 by daveti

Ways for shell to create ‘multi-thread’ scripts (用shell写多线程脚本) An enhancement for ‘tod‘(利用trap改进多线程shell脚本) Yes, the way to write ‘multi-thread’ for shell is using ‘&’ to submit background job. We will use ‘tod’ for example: In ‘tod’, there are in total 3 … Continue reading →

Posted in Programming | Tagged , , , , , | 2 Comments

tcpdump on diskless – tod

Posted on October 15, 2010 by daveti

Name: tod (无盘机器上的tcpdump) Language: KSH Destination: tcpdump on diskless Orignal Intention: Run tcpdump on diskless machine where memory space is highly restricted Version: 0.0 Supported Protocol: UDP/TCP/SCTP Supported OS: Linux/FreeBSD/Solaris Note: ‘root’ permission is preferred to avoid OS kernel error … Continue reading →

Posted in Dave's Tools | Tagged , , , , | 86 Comments

Jar usage

Posted on September 11, 2010 by daveti

(1)Create jar (创建jar) jar cf hello.jar hello 利用test目录生成hello.jar包,如hello.jar存在,则覆盖 (2)Create jar and display the process (创建并显示打包过程) jar cvf hello.jar hello 利用hello目录创建hello.jar包,并显示创建过程 例：E:\>jar cvf hello.jar hello 标明清单(manifest) 增加：hello/(读入= 0) (写出= 0)(存储了 0%) 增加：hello/TestServlet2.class(读入= 1497) (写出= 818)(压缩了 45%) 增加：hello/HelloServlet.class(读入= 1344) (写出= 736)(压缩了 45%) … Continue reading →

Posted in Programming | Tagged , | 2 Comments

Tune look&feel, language for NetBeans

Posted on September 10, 2010 by daveti

To change the look&feel, language for NetBeans (改变NetBeans的外观和默认的语言环境), especially for the IDE on Windows XP with default language – Chinese: Modify ‘netbeans.conf’ under your ‘$NETBEANS_HOME/etc/’  by adding –laf javax.swing.plaf.metal.MetalLookAndFeel //change the look&feel into Java metal style –locale en_US // change … Continue reading →

Posted in IDE_Make | Tagged , | 4 Comments

Kernel Functions in Machine Learning (Transfered)

Posted on September 10, 2010 by daveti

Kernel Functions for Machine Learning Applications Published Wednesday, March 17, 2010 by César Souza in C#, Mathematics, Statistics In recent years, Kernel methods have received major attention, particularly due to the increased popularity of the Support Vector Machines. Kernel functions … Continue reading →

Posted in AI/ML | Tagged , , | 6 Comments