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More than 100% CPU in top in Linux/Mac
If you are power linux/mac user you should have noticed at least once that top shows more than 100% CPU for a process. I also have seen this multiple times but always wondered how it can be. Here is an example of how my top looked when I started my java an …
User Level Threads
User level threads is created for light weight threads. It needs to be controlled, context switched and swapped by the process. To the Operating System it is only one process without any threads. Here is one implementation of it: q.h [c] #includ …
Service Engineer/System Administrator Interview Questions
This is not my code alone. It was the group effort of Vivek Ram, Cijo George, Sandeep Unni and mine during our epic preparation for Yahoo!. I am just putting it open for others who would be looking for this information. Convert all lower case to up …
Operator Preference Grouping Order in C
Here is a compilation of how the preference of operators are Left to Right grouping or Right to Left grouping in C. Level Operator Description Grouping 1 :: scope Left-to-right 2 () [] . -> ++ — dynamic_cast static_cast reinte …
Ontology Linked Data
The following is a Assignment on Ontology and Linked Data and the evolution of data which lead to the use of ontology in web. Thanks to my teammates Bharath Gowda and Sravani Thota for working on the same. Ontology And Linked Data An ontology for …
Important MySQL DBA Interview Questions
Here are a few sets of interview questions expected for MySQL DBA position.These are compilation of the usual questions from various DBA texts: What is Log Switch? – The point at which ORACLE ends writing to one online redo log file and begins writin …
Auto Away Notifier for Pidgin in Perl
Whenever I am away from laptop my chat buddies leave me lots message and finally lots of “You there???”. So I thought of making a script that would inform my buddies that I am away when someone sends me a message. This method works with Pigin API. I hav …
BSNL Dataone Auto Downloader
Bsnl(India) provides an account that has 2am to 8am unlimited download. It was not easy to wake up at 2am and switch on the computer and sleep again. So I tried to find a method to switch on the computer automatically at 2am and download and shutdown at 8a …
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