Krzysztof Ślusarski
@k_slusar
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Joined April 2020
Can you trust the compiler?🤔 Or will the CPU betray you at runtime?⚡ At #Confitura2025, Krzysztof Ślusarski brings Java vs CPU — Round 2: ⚙️ A performance masterclass 💡 JVM insights 😂 Developer humor included #Java #Performance #CPU
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Yesterday Async-profiler 4.0 was released. One of the new feature is "native memory profiling". One of the use case is finding native memory leaks. More on that topic in my new article:
krzysztofslusarski.github.io
[Java][Profiling] Java/JVM native memory leaks
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Any tips where I can get cheap Multi-CPU NUMA metal instance for few hours?
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It's official! 🎉 Together with @OcadoTechnology, we are organizing the 15th birthday! We invited remarkable Speakers! @venkat_s and @piotrprz will give amazing talks! Join us for an event and stay for the after-party to enjoy our birthday! https://t.co/LzfbjNN2QS
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The Billion Row Challenge (#1BRC) - Step-by-step from 71s to 1.7s https://t.co/2QjDN1edkm
questdb.com
I took part in the Billion Row Challenge. Enjoy a deep, step-by-step summary of how you get from a Parallel Java Streams implementation that takes 71 seconds to a super-optimized version that takes...
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@richardstartin @Sarkies_Proxy Async-profiler is also great, especially with https://t.co/YybntrXlYA as a resource (@k_slusar)
krzysztofslusarski.github.io
[Java][Profiling] Async-profiler - manual by use cases
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Profiling virtual threads with async-profiler vs. JFR. I wish developers used proper tools more often.
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Ever wondered what keeps profilers awake at night? Its thoughts on jmethodIds: Let me show you why and how I intend to remedy the situation in my new blog post https://t.co/xCCM4tLL8Z
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We're excited for Saturday because of the upcoming speaker, Krzysztof Ślusarski. He's well-versed in Java with extensive experience as a trainer and speaker - you can meet him very often at @WarszawaJUG meetups https://t.co/PJyZBzhhir
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Zapraszam
Nie ma nic lepszego przed dłuższą wakacyjną przerwą niż zagłębić się w bebechy JVM-a razem z naszym Oficjalnym Przewodnikiem Po Bebechach JVM-a - @k_slusar 💪 Będzie maksymalnie merytorycznie, z dużą dawką humoru i z pierwszego sortu dyskusjami Szczegóły: https://t.co/hTnP0wbJaO
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Na 303. WJUG nie mogliśmy sobie wymyślić lepszego tematu niż chmurowo-lotnicze aspekty mikroserwisów :D Tak więc Jan przeprowadzi nas przez temat #mikroserwisy w #cloud - z lotu ptaka. Gorąco zapraszamy! Szczegóły: https://t.co/jlQpm68ccp
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Great talk about "feature" of JVM that @forked_franz is "advocating" a lot: https://t.co/QHOUh2c3IC Thanks for that one @forked_franz and @SanneGrinovero
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Not only we have two Speakers on WJUG 301, but we will use two languages as well! 🇵🇱🇬🇧 @ksuszynski on how you might have chosen the wrong mesh (talk in EN) and Robert Szarejko on how to take a conscious decision when picking your GC (talk in PL) https://t.co/XWNQLzQSwM
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24-25 października chcemy zaprosić Was do Krakowa na konferencję @JDD_Krakow, którą wspieramy jako Community Partner! ➡️ UWAGA! Do 30.04.2023 są dostępne bilety Early Bird ➡️ Do 7.08.2023 można wysyłać propozycje wykładów w ramach C4P Bilety i CFP 👉 https://t.co/X4q8l6DPyo
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It's happening! @confiturapl just opened their C4P 🤩 Perfect place for your 1st, 2nd...or a million-th talk. Don't miss it, apply now!
Some people call it Thursday; we like to call it pre-Friday. We just opened the C4P for Confitura 2023, and we're waiting for your submissions. Forward the news to your friends and coworkers. Happy Thursday, everyone! https://t.co/QCG1n4df8F
#confiturapl
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Couldn’t we just use AsyncGetCallTrace in a separate thread like JFR does? We can... If we slightly modify the API :) I discuss the different approaches, advantages, and disadvantages in my newest blog post https://t.co/E3QWqa4Lli
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Finally !!!!! The issue that I was describing here: https://t.co/0MDPIqNF1D is fixed and backported to JDK 17 and 11.
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Kolejna transza wejściówek na THIS IS WJUG 300. właśnie pojawiły się na Allegro Charytatywni: https://t.co/jUAkZfvM1R Szczegóły:
meetup.com
**THIS IS WJUG!** Za nami 299 spotkań warszawskiego JUG-a. 299! Przed nami okrągła 300 i z tej okazji chcemy przygotować dla Was coś wyjątkowego. **(WYDARZENIE BILETOWANE.
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THIS IS WJUG! 🔥 25 kwietnia o 18:00 będziemy świętować 300. spotkanie WJUG. Będzie się działo 🍻 Na insta https://t.co/6j8MpY50id właśnie ogłosiliśmy pierwszego Gościa Specjalnego, a będzie ich więcej! Szczegóły (info o biletach) na https://t.co/xD2JvkuYUr
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