Memory-management short topics: page-table sharing and working sets
The kernel's memory-management developers have been busy before and during
the holidays; the result is a number of patch sets making significant
changes to that subsystem. It is time for a quick look at three of those
projects. Two of them aim to increase the sharing of page tables between
processes, while the third takes advantage of the multi-generational LRU to create a better
picture of what a process's working set actually is.
Disconnected environments, proxies and Microsoft Defender for Endpoint
Microsoft Defender for Endpoint is a multi-platform cloud-based endpoint protection product that comprises multiple capabilities and features. There are many moving parts that make up Defender for Endpoint, and many of these parts require network connectivity. Disconnected and air-gapped environment...
I am making more progress on automating my Mastodon world. Throughout the holidays I spent time getting to know the Mastodon API, forking and iterating upon an OpenAPI for the API, and generating a mix of capability API collections that accomplished what I was needing to do with the Mastodon API. Now I am getting to work automating my different Mastodon instances using what I have built. I am not entirely sure what I am automating, as this will vary from instance to instance. The mastodon.apievangelist.com domain will require a very different approach to API automation than mastodon.kinlane.com will. One is professional and one is personal. Adding even more complexity to the federated chaos, I will not just be automating this across domains I control, but because of the nature of my research, I will be automating some aspects of this using many of the leading Mastodon instances. While talking to people during this work I (once again) realize how much I assume of people when it comes to onboarding with APIs, with Postman, and being able to follow, let alone put to use anything I am building. In an effort to bridge this divide I am going to keep polishing how I talk about it here on the blog, producing many different narratives for how I can introduce people to this work with the federated Mastodon API. A significant portion of what I am building involves understanding what Postman does, and how Postman works with any API, including the Mastodon API. To follow along it helps to have a healthy understanding of Postman which you can get via the learning center, but beyond that it helps to understand how the Postman building blocks help automate activity across federated APIs like Mastodon, by leveraging these Postman platform capabilities.
A PostScript Cartridge for an HP LaserJet printer #VintageComputing #LaserJet #HP
Pagetable recently dissected and dumped the Level 2 “Plus” version of HP’s PostScript cartridge series. This time, they will look at the earlier Level 1 “PostScript Cartridge”. There are two cartri…
libcpucycles – count CPU cycles on several architectures #Programming
libcpucycles is a public-domain microlibrary for counting CPU cycles. Cycle counts are not as detailed as Falk diagrams but are the most precise timers available to typical software; they are centr…
The new year means new calendars. This project shows off why an e-ink display makes a great calendar. The clean, crisp and highly legable design draws inspiration from Portal. Because its low power…
Introducing the new differential privacy platform from Microsoft and Harvard's OpenDP
Differential privacy makes it possible to extract useful insights from datasets while safeguarding the privacy of individuals. Learn more about this new open source project.
We are engaging a community of collaborators in academia, industry, and government to build trustworthy, open-source software tools for statistical analysis of sensitive private data
For data management, Data Mesh will continue to soak up plenty of oxygen. But behind the headlines, watch for critical mass ecosystems to form around Data Lakehouses.
The kernel's fscrypt
subsystem enables filesystems to store files and
directories in encrypted form, protecting them against offline attacks. A
few filesystems support encryption with fscrypt currently, but Btrfs is an
exception, despite a number of attempts to add this feature. The problem
is that, as so often seems to be the case, Btrfs works differently and does
not fit well with one of the key assumptions in the design of fscrypt. With this
patch series, Sweet Tea Dorminy is working to enhance fscrypt to be a
better fit for filesystems like Btrfs.
HTTP/3 is is still in its early days with a lot of room to mature, but if you need uninterrupted user experiences on the move, you can start adopting it now.