Links November 2020Links November 2020
KDE has a long term problem of excessive CPU time used by the screen locker [1]. Part of it is due to software GL emulation, and part of it is[...]
Video DecodingVideo Decoding
I’ve had a saga of getting 4K monitors to work well. My latest issue has been video playing, the dreaded mplayer error about the system being too slow. My previous[...]
First Attempt at Gnocchi-StatsdFirst Attempt at Gnocchi-Statsd
I’ve been investigating the options for tracking system statistics to diagnose performance problems. The idea is to track all sorts of data about the system (network use, disk IO, CPU,[...]
Bandwidth for Video ConferencingBandwidth for Video Conferencing
For the Linux Users of Victoria (LUV) I’ve run video conferences on Jitsi and BBB (see my previous post about BBB vs Jitsi [1]). One issue with video conferences is[...]
Qemu (KVM) and 9P (Virtfs) MountsQemu (KVM) and 9P (Virtfs) Mounts
I’ve tried setting up the Qemu (in this case KVM as it uses the Qemu code in question) 9P/Virtfs filesystem for sharing files to a VM. Here is the Qemu[...]
Links September 2020Links September 2020
MD5 cracker, find plain text that matches MD5 hash [1]. Debian Quick Image Baker – Debian VM images for various architectures [2]. Insightful article on Scientific American about how dental[...]
Burning Lithium Ion BatteriesBurning Lithium Ion Batteries
I had an old Nexus 4 phone that was expanding and decided to test some of the theories about battery combustion. The first claim that often gets made is that[...]
Dell BIOS UpdatesDell BIOS Updates
I have just updated the BIOS on a Dell PowerEdge T110 II. The process isn’t too difficult, Google for the machine name and BIOS, download a shell script encoded firmware[...]
More About the PowerEdge R710More About the PowerEdge R710
I’ve got the R710 (mentioned in my previous post [1]) online. When testing the R710 at home I noticed that sometimes the VGA monitor I was using would start flickering[...]
Setting Up a Dell R710 Server with DRAC6Setting Up a Dell R710 Server with DRAC6
I’ve just got a Dell R710 server for LUV and I’ve been playing with the configuration options. Here’s a list of what I’ve done and recommendations on how to do[...]