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Jonathan JoelsonPaging <a href="https://mastodon.social/tags/Swift" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Swift</a> <a href="https://mastodon.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> experts! Is there any way to leverage KVO to synchronously update a property in one class in response to a change in another? Note that both `MyClass` and `AVPlayer` are `<a href="https://mastodon.social/@MainActor" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@MainActor</a>`, so I think this should be a safe thing to want to do... I just don't know how to do it!cc <a href="https://mastodon.social/@mattiem" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mattiem</a>EDIT: is this a good use case for `MainActor.assumeIsolated`?

Ivan Enderlin 🦀parking_lot: ffffffffffffffff…, <a href="https://fly.io/blog/parking-lot-ffffffffffffffff/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://fly.io/blog/parking-lot-ffffffffffffffff/</a>.Excellent article from the Fly.io team about a locking bug they encountered in their codebase, and how it has resulted in a bug fix in parking_lot. Well written.Kudos to the engineers involved.<a href="https://floss.social/tags/RustLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RustLang</a> <a href="https://floss.social/tags/lock" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#lock</a> <a href="https://floss.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a>

Eric VitielloIn this article, we'll explore how actors work, how they differ from classes, and how to use them to protect the app's state from race conditions. <a href="https://oldbytes.space/tags/Swift" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Swift</a> <a href="https://oldbytes.space/tags/Programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Programming</a> <a href="https://oldbytes.space/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> <a href="https://oldbytes.space/tags/Actors" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Actors</a> <a href="https://oldbytes.space/tags/iOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iOS</a> <a href="https://oldbytes.space/tags/macOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#macOS</a> <a href="https://tanaschita.com/swift-actors-basics/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tanaschita.com/swift-actors-basics/</a>

Brendan HaywardSome light reading from Prof Ilya Sergey of Singapore University<a href="https://ilyasergey.net/YSC4231/syllabus.html#" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ilyasergey.net/YSC4231/syllabus.html#</a><a href="https://fosstodon.org/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://fosstodon.org/tags/parallelprogramming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#parallelprogramming</a> <a href="https://fosstodon.org/tags/computerscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#computerscience</a> <a href="https://fosstodon.org/tags/distributedprogramming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#distributedprogramming</a>

Jan :rust: :ferris:Bach - by camshaft<a href="https://github.com/camshaft/bach" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/camshaft/bach</a>from their README:"Bach is a <a href="https://floss.social/tags/Rust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Rust</a>-based framework for simulating and testing complex async/await-based systems in a non-real-time environment. It's capable of modeling network protocols, queueing systems, and concurrent task interactions with testing and visualization tools."Wow, this crate looks awesome and very underrated (by the number of Github stars).<a href="https://floss.social/tags/RustLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RustLang</a> <a href="https://floss.social/tags/CrateTip" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CrateTip</a> <a href="https://floss.social/tags/Async" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Async</a> <a href="https://floss.social/tags/Fuzzing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Fuzzing</a> <a href="https://floss.social/tags/SimulationTesting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SimulationTesting</a> <a href="https://floss.social/tags/Network" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Network</a> <a href="https://floss.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a>

Andrija PetrovicStudying <a href="https://marabos.nl/atomics/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://marabos.nl/atomics/</a> in the wee hours <a href="https://floss.social/tags/rust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rust</a> <a href="https://floss.social/tags/rustlang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rustlang</a> <a href="https://floss.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a>

Sven RuppertJust published a longform article on parallel collectors in Java Streams.✅ Covers correctness, performance, pitfalls 🛠 Custom collectors with CONCURRENT semantics 🔬 JMH benchmark TL;DR: .parallelStream() is not a magic wand. <a href="https://svenruppert.com/2025/04/08/synchronous-in-chaos-how-parallel-collectors-bring-order-to-java-streams/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://svenruppert.com/2025/04/08/synchronous-in-chaos-how-parallel-collectors-bring-order-to-java-streams/</a><a href="https://mastodon.social/tags/Java" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Java</a> <a href="https://mastodon.social/tags/StreamsAPI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StreamsAPI</a> <a href="https://mastodon.social/tags/OpenJDK" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenJDK</a> <a href="https://mastodon.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> <a href="https://mastodon.social/tags/FunctionalProgramming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FunctionalProgramming</a>

Jesper Agdakx 🔸With the NWO XL consortium on Cyclic Structures in Programs and Proofs, we are looking for 6 highly motivated and talented PhD students starting in September (with some flexibility). The topics range from Modal logic, proof theory, and coalgebras to Programming languages, concurrency, and type systems and Proof assistants (#Agda, <a class="hashtag" href="https://agda.club/tag/rocq" rel="nofollow noopener noreferrer" target="_blank">#Rocq</a>). Information about the positions and application procedure can be found on the website: <a href="https://cyclic-structures.gitlab.io/vacancies/" rel="nofollow noopener noreferrer" target="_blank">cyclic-structures.gitlab.io/vacancies/</a> Applications will be evaluated on a rolling basis but should be submitted by the 23rd of May for full consideration. Please forward to any strong candidates you know! <a class="hashtag" href="https://agda.club/tag/typetheory" rel="nofollow noopener noreferrer" target="_blank">#TypeTheory</a> <a class="hashtag" href="https://agda.club/tag/modallogic" rel="nofollow noopener noreferrer" target="_blank">#ModalLogic</a> <a class="hashtag" href="https://agda.club/tag/concurrency" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> <a class="hashtag" href="https://agda.club/tag/programminglanguages" rel="nofollow noopener noreferrer" target="_blank">#ProgrammingLanguages</a> <a class="hashtag" href="https://agda.club/tag/typesystems" rel="nofollow noopener noreferrer" target="_blank">#TypeSystems</a> <a class="hashtag" href="https://agda.club/tag/proofassistants" rel="nofollow noopener noreferrer" target="_blank">#ProofAssistants</a> <a class="hashtag" href="https://agda.club/tag/cyclicstructures" rel="nofollow noopener noreferrer" target="_blank">#CyclicStructures</a> <a class="hashtag" href="https://agda.club/tag/phd" rel="nofollow noopener noreferrer" target="_blank">#PhD</a> <a class="hashtag" href="https://agda.club/tag/netherlands" rel="nofollow noopener noreferrer" target="_blank">#Netherlands</a> <a class="hashtag" href="https://agda.club/tag/universityofgroningen" rel="nofollow noopener noreferrer" target="_blank">#UniversityOfGroningen</a> <a class="hashtag" href="https://agda.club/tag/leidenuniversity" rel="nofollow noopener noreferrer" target="_blank">#LeidenUniversity</a> <a class="hashtag" href="https://agda.club/tag/universityoftwente" rel="nofollow noopener noreferrer" target="_blank">#UniversityOfTwente</a> <a class="hashtag" href="https://agda.club/tag/tudelft" rel="nofollow noopener noreferrer" target="_blank">#TUDelft</a> <a class="hashtag" href="https://agda.club/tag/radbouduniversity" rel="nofollow noopener noreferrer" target="_blank">#RadboudUniversity</a>

Jari PennanenPython and concurrency are a pain. I'm trying to read the Raspberry Pi camera and send mouse coordinates via USB.If I try to send mouse coordinates via USB in the same thread, it slows the raspberry pi camera FPS from 70 -> 40. Same problem if I try to use different threads via 'threading', 'asyncio' or 'multiprocessing' API.It works fine if I run two completely separate Python scripts. 75 fps, and 100 fps in mouse script.Maddening!<a href="https://twit.social/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://twit.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a>

Matthew TurlandAbusing <a href="https://phpc.social/tags/SQLite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SQLite</a> to Handle <a href="https://phpc.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> | SkyPilot Blog <a href="https://blog.skypilot.co/abusing-sqlite-to-handle-concurrency/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://blog.skypilot.co/abusing-sqlite-to-handle-concurrency/</a>

Nick | OneThingWell.dev3,200% CPU utilization"I always thought of race conditions as corrupting the data or deadlocking. I never though it could cause performance issues. But it makes sense, you could corrupt the data in a way that creates an infinite loop."<a href="https://josephmate.github.io/2025-02-26-3200p-cpu-util/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://josephmate.github.io/2025-02-26-3200p-cpu-util/</a><a href="https://indieweb.social/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://indieweb.social/tags/blog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blog</a> <a href="https://indieweb.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://indieweb.social/tags/java" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#java</a> <a href="https://indieweb.social/tags/softwaredevelopment" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#softwaredevelopment</a>

marksmithThis Swift 6 code crashes in _dispatch_assert_queue_fail(), even if the installTap() closure is empty. If I remove the MainActor annotation on the class, it works. Anybody else seen and/or worked around this?<a href="https://mastodon.social/tags/swift" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#swift</a> <a href="https://mastodon.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://mastodon.social/tags/avfoundation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#avfoundation</a>

LibreQoSAlso <a href="https://fosstodon.org/tags/LibreQoS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LibreQoS</a> inside! "🚀New FREE webinar alert!Communicate with Channels in <a href="https://fosstodon.org/tags/Rust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Rust</a> by <a href="https://fosstodon.org/@herberticus" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@herberticus</a> In this webinar, we’ll explore Rust’s std::sync::mpsc, Tokio, & Flume channels, covering bounded vs. unbounded channels, try_send, & techniques for handling backpressure.🦀🎯 Seats are limited—secure yours now! 👉 <a href="https://eventbrite.com/e/communicate-with-channels-in-rust-tickets-1259616239079?aff=oddtdtcreator" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://eventbrite.com/e/communicate-with-channels-in-rust-tickets-1259616239079?aff=oddtdtcreator</a>📅 March. 5th | 12 PM–1 PM EST 🌍 Online - Remote 👨‍🏫 Instructor: Herbert Wolverson"<a href="https://fosstodon.org/tags/RustLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RustLang</a> <a href="https://fosstodon.org/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> <a href="https://fosstodon.org/tags/Programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Programming</a> <a href="https://fosstodon.org/tags/ArdanLabs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ArdanLabs</a> <a href="https://fosstodon.org/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSource</a> <a href="https://fosstodon.org/tags/FLOSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FLOSS</a>

Clément AubertThe <a href="https://lipn.info/tags/Interaction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Interaction</a> and <a href="https://lipn.info/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> Experience <a href="https://lipn.info/tags/workshop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#workshop</a> (ICE 🧊) 2025 Call for paper is out! <a href="https://lipn.info/tags/CFP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CFP</a> ➡ <a href="https://ice-workshop.github.io/cfp.txt" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ice-workshop.github.io/cfp.txt</a> ⬅ICE 🧊 will be co-located with <a href="https://lipn.info/@DisCoTecConf" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@DisCoTecConf</a> and take place in <a href="https://lipn.info/tags/Lille" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Lille</a> , <a href="https://lipn.info/tags/France" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#France</a> 🇫🇷 on June 16th (<a href="https://www.discotec.org/2025/satellite/ice" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.discotec.org/2025/satellite/ice</a>).This workshop is very dear to me: instead of the usual "submission ⇉ (rebuttal ⇉) review" flow, it uses a very original selection procedure (<a href="https://www.discotec.org/2025/satellite/ice#the-ice-selection-procedure" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.discotec.org/2025/satellite/ice#the-ice-selection-procedure</a>), where PC members and authors discuss and collaborate for the greater good ⇆.This year again we have an amazing program committee (<a href="https://www.discotec.org/2025/satellite/ice#programme-committee" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.discotec.org/2025/satellite/ice#programme-committee</a>), an amazing invited speaker (Kirstin Peters, from Augsburg University) and welcome submissions until April 9th, 2025 ⌛.

Ben EvansThere are an indeterminate number of wolves inside of you. One has a large patch to apply, and the others have a steady stream of small patches to apply. All patches must be rebase-clean before they apply for audit reasons.The probability of the wolves livelocking asymptotically approaches 1.<a href="https://mastodon.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://mastodon.social/tags/java" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#java</a> <a href="https://mastodon.social/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a>

Pierre-Yves LapersonneInteresting, just found this page explaining vocabulary in use for Swift Concurrency :yay: <a href="https://framapiaf.org/tags/Swift" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Swift</a> <a href="https://framapiaf.org/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> <a href="https://framapiaf.org/tags/iosdev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iosdev</a> <a href="https://www.massicotte.org/concurrency-glossary" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.massicotte.org/concurrency-glossary</a>

Jason YipWhat every systems programmer should know about <a href="https://mastodon.online/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://assets.bitbashing.io/papers/concurrency-primer.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://assets.bitbashing.io/papers/concurrency-primer.pdf</a>

jnpnthe usual 4 pages long SO answer<a href="https://stackoverflow.com/questions/50958042/continuation-passing-style-and-concurrency" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://stackoverflow.com/questions/50958042/continuation-passing-style-and-concurrency</a><a href="https://mastodon.social/tags/js" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#js</a> <a href="https://mastodon.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://mastodon.social/tags/cps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cps</a>

Jan :rust: :ferris:TLA+ by Leslie Lamport: <a href="https://lamport.azurewebsites.net/tla/tla.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://lamport.azurewebsites.net/tla/tla.html</a>TLA+ is a high-level language for modeling programs and systems--especially concurrent and distributed ones. It's based on the idea that the best way to describe things precisely is with simple mathematics. TLA+ and its tools are useful for eliminating fundamental design errors, which are hard to find and expensive to correct in code.Talk by Gregory Terzian: Solving <a href="https://floss.social/tags/Concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Concurrency</a> with (In-)formal Methods in <a href="https://floss.social/tags/Servo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Servo</a>:<a href="https://yewtu.be/watch?v=1c9sHaEXQak" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://yewtu.be/watch?v=1c9sHaEXQak</a>

MClareWhile doing my latest data puzzle project, I hit a performance issue with <a href="https://recurse.social/tags/selenium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selenium</a> on my Mac, but *not* my Thinkpad.I wrote up initial findings here: <a href="https://mclare.blog/posts/why-is-multithreading-selenium-lousy-on-macos/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mclare.blog/posts/why-is-multithreading-selenium-lousy-on-macos/</a>But I won't have time to investigate further until after the holidays and move 🤷‍♀️<a href="https://recurse.social/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://recurse.social/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://recurse.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a>

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