Dean Kamen at Bates College Commencement 2007
, 1 min read
Very inspirational and motivating speech held by Dean Kamen:
Computer Cooling
, 1 min read
Since using Alpenfoehn Gotthard CPU cooling has improved and the whole PC is more silent. On an otherwise idle PC, just xterm and Chrome running: $ modprobe it87 $ iostat avg-cpu: %user %nice %system %iowait %steal %idle 1.25 0.00 0.25 0.17 0.00 …
Number of Combinations for German Tax Id
, 5 min read
I was asked by a colleague of mine how many combinations are possible for the German tax id. The German tax id is built entirely from eleven digits. Its specification is given in Pruefziffernberechnung, see Steueridentifikationsnummer in the German Wikipedia. Every person reported to live in…
Infrastructure Costs for WordPress
, 1 min read
According the Bloomberg interview as of March 28, 2011, with Matt Mullenweg, https://wordpress.tv/2011/03/28/bloomberg-mullenweg/, it costs 300-400.000$ per month to maintain 1.300 servers operating WordPress.
CPU Usage Time Is Dependant on Load
, 5 min read
I wanted to write a short benchmark for my son to demonstrate that the AMD Bulldozer 8 core CPU is better than a 6 core CPU from AMD when computing with integers. So I wrote a short C program to compute a recurrence relation using integers only, see C code below. When I ran this program on one…
Mainframe Rehosting
, 12 min read
Zusammenfassung 1. Einleitung 2. Kostenbetrachtung 3. Rechenanlage 4. Werkzeuge 5. Vorgehen 7. Erfahrungen und Ausblick 7. Literatur Zusammenfassung Das Mainframe Rehosting hat zum Ziel den bestehenden Mainframe durch einen Verbund von leistungsstarken UNIX Rechnern zu ersetzen. Damit sind…
Erster Eindruck von WordPress
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Mein erster Eindruck von WordPress ist sehr gut. Die Schrift ist angenehm groß, die Bedienung einfach.
Hello world!
, 1 min read
Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!