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Systems & Performance

The most popular blog posts about systems & performance on Hacker News. 195 posts.

2021
151

PipeWire and fixing the Linux Video Capture stack

PipeWire has already made great strides forward in terms of improving the audio handling situation on Linux, but one of the original goals was to also bring along the video side of the house. In fact in the first few releases of Fedora Workstation where we shipped PipeWire we solely enabled it as a tool...

168

Haiku Activity Report – January 2021

Hello everyone, apparently we made it to 2021! This year we will see the 20th anniversary of Haiku. This report covers hrev54806-hrev54947. Architectures, ports, bootloaders PulkoMandy fixed the build of the openfirmware bootloader for PowerPC. It …

169

Scion – A Novel Internet Architecture

At RIPE 81, a group of enthusiastic researchers and practitioners from industry and academia discussed with the RIPE community what role RIRs and LIRs could take on in the SCION next-generation Internet architecture. More than 80 BoF participants discussed this question, wanting to learn more about…

172

Seagate Barracuda Ramp Weakness (2016)

During a recent RAID 5 recovery attempt, John made an interesting discovery inside the two failed disks. The plastic ramp that the heads park onto when idle had snapped in the same position on both drives. We don’t know if the heads got damaged first, and then broke the ramps during parking, or if the […]

176

Étoilé on Gnustep

Étoilé is an innovative GNUstep based user environment built from the ground up on highly modular and light components with project and document orientation in mind.

179

PostgreSQL Subtransactions Considered Harmful

PostgreSQL subtransactions (nested transactions) may cause multiple performance and scalability issues: higher rates of XID growth and higher risks of transaction ID wraparound, performance degradation when more than PGPROC_MAX_CACHED_SUBXIDS (64) are used in a session, drastic performance slowdowns when…