http://xhochy.org/en more british.... Sun, 10 Aug 2008 12:30:40 +0000 http://backend.userland.com/rss092 en I will use in the following posts Ubuntu Linux (8.04) as operating system, that I'll give some specific tips only for it, on other systems some things might work different, but the code should work without modification everywhere. At first we need to install some software requirements, the python wrapper ... http://xhochy.org/en/2008/08/10/programming-with-the-wiimote-ii/ This year we will make a workshop at my school about programming with the WiiMote. In parallel to this workshop I will give a small round-up every week on our process in the form of a tutorial. Things mentioned in this tutorial are not all from the workshop since this ... http://xhochy.org/en/2008/08/07/programming-with-the-wiimote-i/ Since there will be major changes in the next Schoorbs release, I will introduce a new versioning system for Schoorbs which will be the same as Ubuntu has(<year>.<month>). I want to do this now to confuse as less people as possible since Schoorbs user base is growing at the moment, ... http://xhochy.org/en/2008/08/05/update-on-schoorbs-versioning/ Just to show how the new interface looks like and behaves. http://xhochy.org/en/2008/08/02/preview-of-js-effects-in-adminstration-of-schoors/ Using strace I wanted to make up some statistics how many files pidgin loads during a 5 second startup time. Using grep and regexes the following is shown: Attempts to a open file: 2886 Failed Attempts: 1457 Opened(non-failed) for read-only: 1407 Opened(non-failed) for read-only without those from /var/cache: 1371 Shared libraries: 213 PNG-images: 90 ICON-images: 164 http://xhochy.org/en/2008/08/02/inspecting-pidgin-ii/ Using OProfile and GProf2Dot I finally made a callgraph for the first 5 seocnds of a Pidgin startup with a simple Yahoo Messenger Account configured(No I'm not a YIM supporter, this was just the account I used for testing, all my other accounts are to busy to log in/off every ... http://xhochy.org/en/2008/08/01/inspecting-pidgin-i/ Considering the boottime, nearly always people benchmark the time until the login screen shows up, but the enduser is not really only interested how long it takes until he could login, he wants to get as fast as possible to his running desktop and his favourite app running. Due to ... http://xhochy.org/en/2008/08/01/real-boottime-measurements/ Yet another boot performance tip(YABPT): To keep it short: While booting your Ubuntu System, you shouldn't have a CD in your drive because this causes hald-probe-volume to run for 10 seconds. http://xhochy.org/en/2008/07/31/yabpt-do-not-have-a-cd-in-your-drive/ Just to complete all colourings for CUDA files, I added the missing __*__-specifiers. Builtin types like uint4 will be now coloured too. The magic variables blockIdx, threadIdx, ... and the function syncthreads() will all be handled as something specific but I think the most are only interested in the nanorc-file ... http://xhochy.org/en/2008/07/11/adding-cuda-synatx-to-nano-part-2/ Since GNU Nano is my favorite editor on the commandline and I am developing things with CUDA at the moment, I wanted to have the comfort of coloured code code. Since CUDA is just C/C++ with some minimal synatx additions, I modifed the C-syntax file which is loacted in /usr/share/nano/c.nanorc ... http://xhochy.org/en/2008/07/11/adding-cuda-synatx-to-nano/