"There are a lot of tools out there to make the system administrator’s life easier. However, no tool is a replacement for properly understanding the system and experience in troubleshooting unknown situations. This is where Trouble-Maker comes in. Unlike other projects, we do not attempt to solve problems — we cause them."
"Start 2012 by Taking 2 Minutes to Clean Your Apps Permissions"
"Sunlight Labs is part of the Sunlight Foundation a non-profit, non partisan Washington, DC based organization focused on digitization of government data and making tools and websites to make it easily accessible."
"Computer system resources (whether hardware and software) are represented by queues (more formally, a queueing network-not to be confused with a data network-which could be a PDQ queueing model) and the queueing model is solved “analytically” (meaning via a combination of algorithmic and numerical procedures)."
"Team Cymru is happy to announce the availability of various service options dedicated to mapping IP numbers to BGP prefixes and ASNs."
"Of these principles, the most fundamental is the principle of safety: DTrace must not be able to accidentally induce system failure. It is our strict adherence to this principle that allows DTrace to be used with confidence on production systems — and it is its use on production systems that most fundamentally separates DTrace from what has come before it."
"When the project started in January of 2005, early discussion by the SystemTap team referred to “inspiration” that they derived from DTrace. They had a mandate to come up with an equivalent, so I assumed that they had spent the time to truly understand DTrace: to come up with an equivalent for DTrace — or really to duplicate any technology — the first step is to understand what it is completely."
"In some recent threads about DTrace, people have asked how it compares to SystemTap – with some commenting that they haven’t had time to study either. I’ve been encouraged to post about my experiences, which is easy to do from my notes."
"This information is useful, not just for developers writing code (who are typically more familiar with their existence from using Oracle Sun Studio), but also for system administrators doing performance analysis and capacity planning."
— Performance Instrumentation Counters: short talk (Brendan Gregg)
"A series of seven video modules presented by Oracle Senior Staff Engineer Ruud van der Pas, covering various aspects of parallel programming in C, C , and Fortran on multi-core and multi-processor systems."
"These pages are the Swiss Army knife for everyone in the need to analyze and tune a Solaris system. The intention is to provide freely available tools and commands which help to make a quick assessment of the system."
"Now that we have a health check, we need to add it to our load balancing rule. Unfortunately, ilbadm doesn’t have a command to modify an existing load balancing rule, so we have to delete it and create it again:"
Performance, Monitoring and Management, Testing, and Debugging of Java Applications
"Since Solaris 10 8/07, zone configurations can be either in the default shared IP Instance or exclusive IP Instance configuration."
