— Jonathan Perkin (@jperkin) April 2, 2013
Bruning Questions: ZFS Record Size - “”I thought ZFS record size is variable: by default it’s 128K, but write 2KB of data (assuming nothing else writes), then only 2KB writes to disk (excluding metadata). What does record size actually enforce?” – Max Bruning answers this question!
Training: DTrace: Core Features and Performance Analysis
dates: Tuesday, May 14, 2013 at 9:00 AM - Thursday, May 16, 2013 at 5:00 PM (PDT)
location: Joyent, One Embarcadero Center, 9th Floor, San Francisco CA 94111
trainer: Max Bruning
This course introduces DTrace and teaches common performance analysis techniques. It is intended for system support staff, system administrators, developers, and anyone who would like to quickly learn DTrace and some practical methods for applying it. This course teaches core features of DTrace that are available in many enterprise and cloud computing environments, and is taught from a Joyent SmartMachine, a restricted environment that provides these features. Kernel internal analysis is not covered. (An advanced course for kernel-level DTrace is planned in the future.)
This course makes extensive use of labs, where performance issues based on real-world cases are simulated in isolation for the students to solve, with help from the instructor. For some this is the highlight of the course, putting the methodologies learned into practice and seeing how they work first-hand.
more information and register HERE.