I’ve been doing public talks and presentations rather frequently for the last 10-or-so years, but this year I made significant changes to my process for creating, rehearsing, and presenting talks.

In a Ceph cluster, the frequent question, “how much space utilization overhead does my EC profile cause,” can be answered with very simple algebra.

My presentation from the Open Infrastructure Summit 2019 in Shanghai.

When you are using functionality that is buried deep in the Linux kernel, ftrace can be extremely useful. Here are some suggestions on how to use it, using the example of tracing function calls from qemu-guest-agent.

A talk I submitted to PyCon AU 2018, linux.conf.au 2019, and PyCon DE 2019.