Tux Machines

today's leftovers

Posted by Roy Schestowitz on Jan 07, 2023

=> Today in Techrights | Programming Leftovers

Debugging, tracing and profiling training course materials published - Bootlin's blog

=> ↺ Debugging, tracing and profiling training course materials published - Bootlin's blog

Back in November 2022, we announced the availability of a new training course titled Linux debugging, profiling, tracing and performance analysis.

At the time, this training course was still being prepared, but since then Bootlin engineer Clément Léger finished the preparation and successfully delivered the training course to a group of participants.

Linux Plumbers Conference: LPC 2022 Attendee Survey Summary

=> ↺ Linux Plumbers Conference: LPC 2022 Attendee Survey Summary

We had 206 responses to the Linux Plumbers survey in 2022, which, given the total number of in person conference participants of 401, and virtual participants of 320, has provided high confidence in the feedback.

[...]

Overall: 91.8% of respondents were positive about the event, with 6.3% as neutral and 1.9% were dissatisfied. 80.1% indicated that the discussions they participated in helped resolve problems. The BOF track was popular and we’re looking to include it again in 2023. Due to the fact we were having our first in person since the pandemic started, we did this event as a hybrid event with reduced in person registration compared to prior years, as we were unsure how many would be willing to travel and our venue’s capacity. The conference sold out of regular tickets very quickly after opening up registration though, so we set up a waiting list. With some the travel conditions and cancelations, we were able to work through the daunting waiting list, and offer spots to all of those on the list by the conference date. Venue capacity is something we’re looking closely at for next year and will outline the plan when the CFP opens early this year.

[...]

Events: Our evening events are feeling the pressure from the number of attendees especially with the other factors from the pandemic. The first night event had more issues than the closing event and we appreciate the constructive suggestions in the write-in comments. The survey was still positive about the events overall, so we’ll see what we can do make this part of the “hallway track” more effective for everyone next year.

Confluent expands Kafka Streams capabilities, acquires Apache Flink vendor | VentureBeat

=> ↺ Confluent expands Kafka Streams capabilities, acquires Apache Flink vendor | VentureBeat

The ability to stream data is a core capability of the open-source Apache Kafka technology. Among the leading vendors that supports Kafka with commercial products and services is Confluent, which is led by the original creators of Kafka. Confluent had its initial public offering (IPO) in June 2021, with demand for real time data streaming continuing to grow.

Why you should use Docker and containers | InfoWorld

=> ↺ Why you should use Docker and containers | InfoWorld

A book published in 1981, called Nailing Jelly to a Tree, describes software as “nebulous and difficult to get a firm grip on.” That was true in 1981, and it is no less true four decades since. Software, whether it is an application you bought or one that you built yourself, remains hard to deploy, hard to manage, and hard to run.

Docker containers provide a way to get a grip on software. You can use Docker to wrap up an application in such a way that its deployment and runtime issues—how to expose it on a network, how to manage its use of storage and memory and I/O, how to control access permissions—are handled outside of the application itself, and in a way that is consistent across all “containerized” apps. You can run your Docker container on any OS-compatible host (Linux or Windows) that has the Docker runtime installed.

Docker offers many other benefits besides this handy encapsulation, isolation, portability, and control. Docker containers are small (megabytes). They start instantly. They have their own built-in mechanisms for versioning and component reuse. They can be easily shared via the public Docker Hub or private repository.

Docker containers are also immutable, which has both security and operational benefits. Any changes to a container must be deployed as an entirely new, differently versioned container.

In this article we’ll explore how Docker containers make it easier to both build and deploy software—the issues containers address, how they address them, when they are the right answer to the problem, and when they aren’t.

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