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  • DiskMap – an disk backed Map in Java

    I have the following problem: a Java application was running out of memory. It was not feasible to mandate 64 bit JVM for this application and the ~1.4G limit wasn’t enough. My solution was to implement a Map which – when an element is added – also saves the value to disk and only holds…

    March 8, 2011
  • Why running sushi is the best fast-food?

    I just realized that running sushi is the best fast-food ever. (Yes, I have strong opinions weakly held): You get you food in small chunks, so you can stop at any time and still don’t feel like you’ve wasted food You have a great variety of food and you can look at it before taking…

    March 8, 2011
  • Microbenchmarking and you

    Crossposted from the Transylvania JUG website. Microbenchmarking is the practice of measuring the performance characteristics (like CPU, memory or I/O) of a small piece of code to determine which would be better suited for a particular scenario. If I could offer but one advice on this, it would be this: don’t. It is too easy…

    March 7, 2011
  • Doing some estimations

    This is again one of those topics which I like to rant about, so I give you the short version: when you see a number, question it! Most of the numbers thrown at us in different media can be disproven quite easily and it is our responsibility as people not to just repeat whatever we’ve…

    March 6, 2011
  • Audio quality

    This is just one of those topics which comes up from time to time in my life (probably because I consume a lot of media). I was recently watching the Jim Zemlin interviewed by Jeremy Allison (Jim Zemlin is the Executive Director of the Linux Foundation) on the Google Open Source YouTube channel and was…

    March 5, 2011
  • Sorry for the malware warning!

    If you have tried to visit my blog recently, you might have to a warning like this from your webbrowser: Warning: Something’s Not Right Here! hype-free.blogspot.com contains content from randaclay.com , a site known to distribute malware. Your computer might catch a virus if you visit this site. … The source of the warning is…

    February 25, 2011
  • mytrendyphone.co.uk review

    My assignment – which I choose to accept 🙂 – was to review a mobile accessories site, namely mytrendyphone.co.uk. All the signs for this site check out: It was registered a couple of years ago and didn’t move around much It has several real seals (real meaning that they are linked to the originating site,…

    February 25, 2011
  • Setting up IMAP with Yahoo! Mail

    I’m a long time Yahoo Mail user. Just to illustrate how long I’ve been with them: when I joined the space available was a couple of MBs! I staid with them because I was mostly satisfied (never really caught the GMail bug), however recently I started looking for options to consolidate the different email accounts…

    February 22, 2011
  • Manually enabling IP routing in Windows XP

    While Internet Connection Sharing is a nifty tool, there are some cases where you would like to do the steps manually. One such case would be if the “primary” network is already using the 192.168.0.1/24 address space, since ICS is hardcoded (as far as I can tell) to use the same network. One concrete case…

    February 6, 2011
  • Is hand-writing assembly still necessary these days?

    Some time ago I came over the following article: Fast CRC32 in Assembly. It claimed that the assembly implementation was faster than the one implemented in C. Performance was always something I’m interested in, so I repeated and extended the experiment. Here are the numbers I got. This is on a Core 2 Duo T5500…

    February 6, 2011
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