Oliver Kurmis

About me

living in Munich, Germany
loving technology, martial arts, history and travelling
proud member of the European Kyusho Academy

Blog

• 08 Aug 2021 Storage efficient backup with rsync on Linux
• 13 May 2021 Fast and efficient backup of XFS partition
• 06 Jan 2021 Performance improvements with PHP 8 JIT compiler
• 22 Feb 2020 Performance comparison of Laravel cache stores
• 15 Jan 2020 40 times faster PHP Code Coverage Reporting with PCOV
• 01 Nov 2019 Check password strength with vanilla JavaScript and HTML5
• 21 Sep 2019 How to drastically increase Docker performance on Mac and Windows
• 19 Aug 2019 Reset and sync local git repository with remote branch
• 15 Aug 2019 How to create a MySQL/MariaDB database and user

Profiles

I have online profiles on these awesome web communities:
GitHub LinkedIn XING facebook Wikipedia Flickr

Projects

Some of my projects are or have been:

• 2017-2020 aboalarm
  B2C portal helping people to cancel their contracts and subscriptions: aboalarm.de (German website)
• 2018 pdf2png-service
  a webservice to convert PDF files to PNG images, based on Node.js: www.kurmis.com/pdf2png-service
• 2018 Online password generator
  quickly generate random passords in the web browser www.kurmis.com/password-generator
• 2016 CSV-Faker
  a small tool written in Ruby to generate CSV files filled with faked data: www.kurmis.com/csv-faker
• 2011-today Karate USC München
  Homepage of my Karate Club, using Wordpress and Cloudflare CDN
• 2016 The in-memory database SAP HANA
  project paper Die In-Memory-Datenbank SAP HANA (German)
• 2015-2016 chartbench
  a tool to benchmark implementations of programming languages by performing a prime sieve algorithm implemented in PHP, Python, Perl, Ruby and TCL. Long story short: Python on PyPy is fastest
• 2015 Unicode - history and contemporary challenges
  project paper Unicode - Geschichte und aktuelle Herausforderungen (German PDF)
• 2015 Scrumban - a combination of Scrum and Kanban
  project paper Scrumban - eine Kombination von Scrum und Kanban (German PDF)
• 2014 Optimizing MySQL requests with EXPLAIN
  project paper Optimierung von MySQL Anfragen unter Zuhilfenahme von Explain (German PDF)
• 2010 bizcards
  Print your own business card in seconds, right from your web browser: www.kurmis.com/bizcards
  In 2010 I tried some new features of HTML5 here (only German so far)
• 2002-2005 comdirect Informer
  No.1 German online bank - information to stocks, fonds, bonds, certificates and markets
  They developed their site further, but basically this is like what I was working on: https://www.comdirect.de/inf/
• 2001-2007 DAB bank
  market information, virtual portfolio, certificates contest
  In 2016 the DAB bank merged with the Consors bank