Using the pressure stall information interface in kernel 4.2027 January 2019·535 words·3 minsFedora 29 now has kernel 4.
Performance benchmarks: KVM vs. Xen22 June 2014·1072 words·6 minsAfter having some interesting discussions last week around KVM and Xen performance improvements over the past years, I decided to do a little research on my own.
Helpful Linux I/O stack diagram30 April 2014·78 words·1 minDuring one of my regular trips to reddit, I stumbled upon an amazingly helpful Linux I/O stack diagram:
Moving from OS X to Linux: Day One27 August 2013·1418 words·7 minsThe thought of using Linux as a manager in a highly Windows- and Mac-centric corporate environment isn’t something to be taken lightly.
Red Hat Summit 2012: Thursday29 June 2012·862 words·5 minsThursday has felt like the busiest, most jam-packed day of the week.
Lesser-known but extremely handy Linux tools11 May 2012·871 words·5 minsKristóf Kovács has a fantastic post about some lesser-known Linux tools that can really come in handy in different situations.
Xen Summit 2011: My Takeways8 August 2011·960 words·5 minsQuite a few people who couldn’t make it to Xen Summit 2011 this year asked me to write a post summarizing my takeaways from the event.
A modern implementation and explanation of Linux Virtual Server (LVS)27 June 2010·813 words·4 minsTypical configuration for a proxy-type load balancer
Hunting down elusive sources of iowait11 March 2008·160 words·1 minA question I’m asked daily is “How can I find out what is generating iowait on my server?