Systemd and non-desktop scenarios

So we’ve been using Debian 8 as the basis of our SIOS v2 system. Debian has a number of very strong features that make it a fantastic basis for developing a platform … for one, it doesn’t have significant negative baggage/technical debt associated with poor design decisions early on in the development of the system […]

You can’t win

Like that old joke about the patient going to the Doctor for a pain … Patient: Doctor, it hurts when I do this (does some action which hurts) Doctor: Don’t do it then Imagine if you will, a patient whom, after being told what is wrong, and why it hurts, and what to do about […]

That was fun … no wait … the other thing … not fun

Long overdue update of the server this blog runs on. It is no longer running a Ubuntu flavor, but instead running SIOSv2 which is the same appliance operating system that powers our products. This isn’t specifically a case of eating our own dog-food, but more a case that Ubuntu, even the LTS versions, have a […]

Not a fan of device mapper in Linux

Yeah, I know. It brings all manner of capabilities with it. Its just the cost of these capabilities, when combined with other tools, like, say, Docker, that make me not want to use it. To wit: root@ucp-01:~# ls -alF /var/lib/docker/devicemapper/devicemapper/ total 52508 drwx—— 2 root root 80 Jan 29 22:38 ./ drwx—— 4 root root […]

A wonderful read on metrics, profiling, benchmarking

Brendan Gregg’s writings are always interesting and informative. I just saw a link on hacker news to a presentation he gave on “Broken Performance Tools“. It is wonderful, and succinctly explains many thing I’ve talked about here and elsewhere, but it goes far beyond what I’ve grumbled over. One of my favorite points in there […]