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![[Translation] Go sync.WaitGroup и проблема с выравниванием](https://times42.com/media/4/0/3/9289403_640x200.jpg "[Translation] Go sync.WaitGroup и проблема с выравниванием")
WaitGroup — это, по сути, способ дождаться , пока несколько горутин закончат свою работу. Мы начнем с основ, а затем разберемся, как это устроено под капотом.Есть классные статьи, где рассматривается несколько примитивов синхронизации в Go: Go Sync Mutex: Нормальный и голодный режим, Go sync.Pool и механика, лежащая в его основе. Каждый из них имеет свой набор проблем, и этот не отличается. Мы сосредоточимся на проблемах выравнивания WaitGroup, и как ее внутренняя структура менялась в разных версиях.Эта с
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Habr
If Donald Trump's defamation suit doesn't settle, the discovery process could reveal new details about his ties to Jeffrey Epstein. Read more ›
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In a recent interview with The Times, Superman director James Gunn said that his new blockbuster tells the story of “an immigrant.” He also explained it was a story about “basic human kindness.” But that first comment — about Superman’s foreign origins — is the one that set off some pundits on the right. Fox […] Read more ›
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Kirk Garrison has identified toolmarks left behind on 3D-printed ghost gun pieces that can suggest what printer was used to print them. Read more ›
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OnePlus refreshed the Nord series with two interesting models – one brings the first Snapdragon 8-series chip to the Nord family, the other has the biggest battery of any OnePlus phone yet... kind of. The OnePlus Nord 5 sports a Snapdragon 8s Gen 3, which showed great performance in our review. It comes with Android 15 out of the box and will receive 4 OS updates. It has a large... Read more ›
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The decision to create a kid-safe AI app follows backlash over Grok’s more mature offerings, making Baby Grok’s reveal seem like a timely, if not essential, shift Read more ›
636 fresh
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624 fresh
Mark Zuckerberg's wife, Priscilla Chan, said GPUs are key to recruiting for the couple's philanthropic organization, the Chan Zuckerberg Initiative. Read more ›
613 fresh
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570 fresh
Attackers are exploiting a critical Wing FTP flaw which allows remote system access, although all attempts have failed so far. Read more ›
544 fresh
TeamGroup's T-Create Expert lineup targets the professional market, but can its DDR5-6000 C34 memory kit outperform enthusiast memory kits? Read more ›
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Microsoft, a key contractor for the US government, has previously experienced high-profile breaches by Chinese and Russian hackers. It said that it had disclosed its arrangements with China-based personnel to the government Read more ›
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Hi, friends! Welcome to Installer No. 90, your guide to the best and Verge-iest stuff in the world. (If you're new here, welcome, hope you're staying cool, and also you can read all the old editions at the Installer homepage.) This week, I have been watching The Bear's fourth season, preparing for the deluge of […] Read more ›
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Habr
Исследователи из канадского Университета Торонто опубликовали научную работу, в которой показали успешное применение атаки класса Rowhammer на профессиональные видеокарты Nvidia. Атака Rowhammer впервые была показана в 2014 году, она эксплуатирует физические особенности современных микросхем оперативной памяти. Из-за высокой плотности ячеек памяти есть возможность изменять значения в определенных ячейках путем отправления множества запросов по соседним адресам. Такое «простукивание» (отсюда hammer в названи Read more ›
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![[Translation] The performance engineer: a detective licensed to kill… bottlenecks](https://times42.com/media/6/3/5/10833635_640x200.jpg "[Translation] The performance engineer: a detective licensed to kill… bottlenecks")
Picture this: a mission-critical SQL query is crawling along. Not for an hour. Not for two. Fifteen hours. A full workday of the system slowly grinding through data while the business bleeds money and users teeter on the edge of a nervous breakdown. And then — cue the dramatic music — in walks the performance engineer.After a few hours of intense analysis and a couple of pinpoint code tweaks, the... Read more ›
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Привет, Хабр! Меня зовут Алексей Быков, я занимаюсь развитием cloud-native-платформы для обработки данных Arenadata One (AD.ONE). В этой статье мы поговорим о neon-kubernetes-реализации PostgreSQL, её устройстве, особенностях и о том, почему классический подход к Postgres в Kubernetes не позволяет в полной мере использовать преимущества гибкой облачной инфраструктуры.Тема не новая и активно развивается: уже давно существуют операторы (Zalando, Crunchy Data, CloudNativePG) для автоматизации развёртывания Pos Read more ›
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![[Translation] Cheap but functional DYI robot arm](https://times42.com/media/6/6/2/10845662_640x200.jpg "[Translation] Cheap but functional DYI robot arm")
Let’s clarify right away — we’re not aiming to make this super cheap. I’d rather not lose brain cells trying to build makeshift encoders for motors, and I want to simplify creating a 3D model needed for ROS control (link to the finished model — further below). Read more Read more ›
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От AlphaGo до ChatGPT — прогресс в области искусственного интеллекта впечатляет своими масштабами. Однако за красивым фасадом скрывается серьезный разрыв между возможностями современных моделей и реальными условиями их применения. Возьмем, к примеру, GPT-3 с его (уже не такими впечатляющими) 175 миллиардами параметров, требующими 800 ГБ памяти. Такие модели существуют только в лабораториях вроде OpenAI. Что уж говорить о запуске подобных систем на устройствах с ограниченными ресурсами.При этом именно edge-у Read more ›
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pg_stat_statements is the standard PostgreSQL extension used to track query statistics: number of executions, total and average execution time, number of returned rows, and other metrics. This information allows to analyze query behavior over time, identify problem areas, and make informed optimization decisions. However, in systems with high contention, pg_stat_statements itself can become a bottleneck and cause performance drops. In this article, we will analyze in which scenarios the extension... Read more ›
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Business Insider
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47% 15 |
Tom's Hardware
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13% 9 |
Gizmodo
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9% 1 |
Eurogamer.net
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4% 3 |
The Verge
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4% 3 |
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20.07.2025 09:24
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