Missing iPhone Simulator Features …

The Simulator lacks several features which hopefully get implemented someday … these are just a few things I thought about … Emulation mode which rebuilds the ARM processor as well as all other subsequent hardware. Then you could run AppStore tools. The webcam is not working in Simulator. At least a configuration has to be […]

iPhone SDK on PPC (Mac Mini 1,2GHz)

According to Apple iPhone development is only possible using the Intel architecture. I installed iPhone SDK on my G4 Mini (several people managed it to get the iPhone SDK on PPC running). So here is my experience with running the iPhone simulator on PPC. As you can see below, my phone is browsing my blog: […]

JVM realtime class insight

This shows a list of loaded classes of one specific JAVA process. Red dots represent classes which (partly) run in native x86 machine code – green dots represent classes which are entirely interpreted. The list updates in real time (as the process loads classes or JITs code while execution) – the target JAVA process does […]

VM hooking Java Class-Loading using agents

It is fairly easy to integrate new class loaders in the Java world but what about the VM world? I show you how to hook into class loading using an agent written in C++ utilizing VM internals. The Java programs don’t even know that their bytecode leaks, this is like the guy in The Matrix […]

Monitoring Class Loading in Java (Approach #1)

Ever wondered how to track class-loading in Java? Well there are quite different solutions to this problem and I show you the most common and Java-like way for doing this. In the Java class-loader model, class loaders are arranged hierarchically in a tree, with the bootstrap class loader as the root of the tree. You […]

Walther WSR 16

I recently bought a 1952 simplex calculator for adding „big“ numbers, at the jumble sale. Besides the fact that this machine still works perfectly, its not really portable with its weight of 5 kg. One very nice feature is the back propagation of the result memory back to the input register! It is impressive how […]

Asus Eee PC 1000H CPU Details (cpuz)

Here you can see the CPU details of my Eee PC. The core  speed and rated fsb changes continously because of the dynamic speed stepping. The different power schemes do not set the cpu to a fixed speed (like 800MHz) moreover the scheme „caps“ the fsb and core speed. So for „power saving“ the core […]

Asus Eee PC 1000H with TrueCrypt

I wondered  how big the impact on the IO power of my Eee PC 1000H would be when using full hdd system encryption and TrueCrypt. Since TrueCrypt 6a the performance of AES and also Twofish increased significantly. My Eee PC is equipped with a pretty fast 160 GB 2,5″ HDD. Today I applied the complete […]

Win Boole

WinBoole is a windows tool (written in C++) which has been created back in 2004 when I needed some logics tools. This is mainly a windows port of an already existing enginge plus new GUI which supports satisfiabiliy checking (SAT) on expressions. Download WinBoole Possible Operators are „!“ not, „&“ and, „|“ or, „->“ implikation, […]

Asus Eee PC 1000H remove webcam

I work for a company where digital cameras are striclty prohibited so I like to remove the complete webcam hardware. Almost any Netbook ships with a webcam even if you don’t like it. Here I show you 4 steps to remove the webcam from a Asus eeepc 1000H without changing the appearance of the netbook. […]

Asus Eee PC 1000H

Yes! I am a proud owner of a brand new eeepc 1000H with 1,6 GHz Intel Atom processor, 1GB RAM and 160GB HDD. I used the CrystalMark 2004R3 to determine its performance. My former workstation at home was a AMD XP 2000+ with 2GB RAM (400 MHz) and ATI Radeon 9500. See how the small […]

Java Object Serialization Benchmark

Read this document on Scribd: Serialisierungs Benchmark This benchmark shows the performance of the Java object serialization. The basis is a ~290 Byte Java Bean. Java 6 gains 25 % of speed compared to Java 1.4. The exact number of objects per second is not very interesting rather the gap between the Java VM versions […]

SWT checkbox Tree improvement

SWT is a great codebase when aiming at cross-platform UIs but dont expect well optimized or full featured controls which combine the best out of all worlds. Tree and SWT.CHECK Ever used a Tree or TreeView as checkbox-tree? SWT.CHECK just gives you the possibility to achieve this. Works well for small trees! But ever tried […]