Delphi – Testing application speed

Each test ran 4-5 times. The application priority was set to High in Task Manager. ————- Start point: No optimization: 2.28 sec ————- Test 1: With FastMM4 enabled:  2.23 sec With FastMM4 enabled and RtlVclOptimize: 2.18 sec With FastMM4 enabled and VCLFixPack: 2.10 sec  With FastMM4 enabled and FastCode: 2.09 sec All (FastMM4 and RtlVclOptimize

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Microsoft is spying on you

Since Windows Vista and Windows 7 Microsoft started to embrace the “big brother” attitude even harder. There are a lot of secret software installed by Microsoft on your computer through their magic “Windows Update”. Here is some evidence: Windows Update updating without permission! http://cubicspot.blogspot.com/2007/08/windows-update-updating-without.html True Spyware In Microsoft Windows 7 http://www.techarp.com/showarticle.aspx?artno=670&pgno=1 http://www.techarp.com/showarticle.aspx?artno=670 Microsoft Windows 7

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Switch from IDE to AHCI

It looks it is possible to switch from IDE to AHCI after Windows was installed in IDE mode. All you have to do is to change the HKEY_LOCAL_MACHINESystemCurrentControlSetServic esmsahciStart key from 3 to 0.  The details are here: http://ocztechnologyforum.com/forum/showthread.php?69682-Change-from-IDE-to-AHCI-after-Installation Increase in performance due to AHCI is minor (few percents) while the problems created by this

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DNA sample compression test

Few months ago I had to run a test to see if DNA sequence files (FASTA files) compress better than simple text files. DNA files contains only 4 characters (A, C, G, T) so you will expect that they will compress really well compared with text files. However, the DNA code is pretty random (well

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How we spend Moor dividend

How we spend Moor dividend During the last 28 years, the clock speed increased 586 times. The Intel Pentium processor, introduced in 1995, achieved a SPECint95 benchmark score of 2.9, while the Intel Core 2 Duo achieved a SPECint2000 benchmark score of 3108.0, a 375 times increase in performance in 11 years. One indication is

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Parallel/distributed databases (raw notes)

Some raw notes about distributed databases. If you want to start with parallel databases then you need some good knowledge about traditional (non-distributed) data bases. Here are some books I personally recommend.: Books about regular DB http://proquest.safaribooksonline.com/0321290933 http://proquest.safaribooksonline.com http://proquest.safaribooksonline.com/078972569X http://proquest.safaribooksonline.com/9781593271909 (For true beginners. You may not want to start working with parallel DB systems if

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Parallel programming (raw notes)

Raw Notes on Parallel Programming Parallel programming involves multiple tasks running simultaneously to process data or execute instructions. I’ve been exploring parallel computing for a recent project, and I’ve come across various definitions and distinctions in the literature. These terms often have loose interpretations, so it’s worth noting that each book or source defines them

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Large file systems (raw notes)

Distributed Processing: Raw Resources (2008/2009) I’ve decided to share some of my 2008/2009 notes on distributed processing. These documents are just raw material and personal observations from my research at the time. While I intend to revisit and organize them into a more presentable format, here’s the first post in a series of about 30

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