Monthly Archive for June, 2008

The Mysterious Ticking Noise

I think quite many people already have seen it (46 million views), but it is so good that I have to mention it in my blog.  It’s really enjoying to watch this 2 minute video, there is not a really sense in it, it is just the ironic and happy behaviour that makes this video a have-to-watch. I think it is impossible to explain the style of the video, you just have to watch it!

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Schoorbs 1.0.3 released

Schoorbs 1.0.3 comes with a fix for the first detected security problem in Schoorbs ever (:-(). Despite it is a SQL injection vulnerability, it doesn’t give the users who could exploit it any more right since the affected code passage is only callable by administrators. Although this is a security release, a E-Mail-Logging-Backend is now included, so that one could be notified by mail if a booking will be created or edited. In short this has been done:

  • Added a backend for logging via E-Mail
  • Fixed SQL injection vulnerability in edit_area_room.php

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Try 1: Reprofile readahead-list

Readahead loads files into the memory which are needed during the boot process. If you add the argument ‘profile’ to your kernel command line readahead will observe the boot process and recreate its list of files to preload. After subtracting the 3 seconds for the typing of the password, this results in a boot time of 37 seconds, 4 seconds faster than before.

View this statistic in full size

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Benchmarking my Laptop Startup

Just interested what’s done during my system start-up, I benchmarked it with bootchart. Here is my result for an encrypted Ubuntu 8.04 amd64 start-up. My hardware/software statistics (for you to compare):

  • CPU: Intel T7600
  • Memory: 2GB DDR2
  • Init: upstart-0.3.9-2
  • Kernel: 2.6.24-19

Remark: You have to subtract 2 seconds from the start-up which I needed to type in the password for the encrypted partition, so the start-up time results in 41 seconds. Through tests I found out, that the first passage where CPU+disk sleep simultaneously is the time where you type your password, the second one is always 5 seconds long and not giving any sense to me at the moment.

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Schoorbs 1.0.2 released

Coming up with some small bug fixes, here is Schoorbs 1.0.2!

  • Fixed incompatibility of the error-handler with PHP4
  • Time wasn’t shown at the border of the timetable in week view
  • Strings were not correctly handled in input_Area

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