Idle Page Tracking Tools

idle_page_tracking[1] is a simple, stupid toolbox for idle pages tracking. It can be used to get real working set size of a process. Tools This section describes two tools in the box though more tools exists. You can get more description about each tool from the README in the repository[1]. userprog userprog is a sample synthetic workload for test of other tools. It interactively allocates and access specified pages in the allocated pages. [Read More]

lkml livestream

I wrote a simple, stupid program[1] that showing LKML[2] mails in terminal briefly like twitter livestream in Go language. It is just an early version and so many things to be complemented exists, though. Nevertheless, now it just works as I wanted at first. 쏟아지는 LKML[2] 의 메일들을 트위터 라이브스트림처럼 터미널에 보여주는 간단한 프로그램[1] 을 go 언어로 만들어 봤습니다. 아직 보완할 점 투성이지만 이제 최초의 목적대로는 동작하는군요. References [1] https://github. [Read More]

Updating Google Chrome on Fedora 23

I am using Fedora 23 laptop and installed stable version Google Chrome from its official website [0]. In this case, just using Updates of Fedora Software program doesn’t update Chrome automatically. For the case, follow below commands to update your Chrome: $ sudo dnf update google-chrome-stable ... $ sudo killall chrome $ google-chrome-stable The second killall command is necessary because Chrome doesn’t kill its process by just cliking Close button. [Read More]

Golang kakaotalk chat bot making

I have developed a chat bot [1] for Kakaotalk [2] using Go language because I have been curious about the process of Kakaotalk chat bot development process. Implementation to major version has consumed only two hours owing to power of Go language, simpleness of Kakaotalk auto-reply API, and simple simple functionality requirement of my bot. It has coded really simply and in brute-force manner, do only simple echoing. However, for the reason, the code could be helpful for beginner of Kakaotalk chat bot or Go language Restful API server programmer. [Read More]

Using arping to know ip-MAC mapping

You can use arping to know IP address to MAC address mapping of your local network. Usage is simple: arping [-AbDfhqUV] [-c count] [-w deadline] [-s source] -I interface destination For example, you may use the command as below: $ arping -I eth0 10.0.0.1 ARPING 10.0.0.1 from 10.0.0.2 eth0 Unicast reply from 10.0.0.1 [11:22:33:44:55:66] 0.123ms Unicast reply from 10.0.0.1 [11:22:33:44:55:66] 0.251ms ... Secret of the tool is ARP protocol [1]. [Read More]