When a compiler optimizes your program, it has to guess. Which functions are worth inlining? Which side of a branch is the common one? Which method does this interface call actually reach? At compile time it cannot know, so it uses heuristics. Profile-guided…

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Hello you fine Internet folks, NVIDIA has published a 45-page whitepaper explaining Vera, its first server CPU built around the company’s own Olympus core. On paper, Vera is a fascinating chip with an 88-core monolithic compute die, Olympus being a 10-wide…

Arm’s 5-series cores are meant for tasks where performance barely matters, but power and area efficiency are top priorities. Because they’re less performance sensitive, 5-series cores tend to be superseded less often than their more sophisticated counterparts.…

C++26 adds a new container to the standard library: std::hive. It is meant to occupy the ground between std::vector and std::list. Like a vector, it keeps its elements in contiguous blocks of memory, so scanning it does not require you to chase a pointer…

What 24 million GPS special messages reveal about military rekeying on a public channel.

Hello you fine Internet folks, Today we are talking about one of the stranger x86 stories I have seen in a while. According to both SemiAccurate and Reuters, Intel is giving a new startup called RosaicLabs access to the register transfer language code for…

讣告著名作曲家、音乐教育家、上海音乐学院离休干部陈钢教授，因...

Hello you fine Internet folks, Today we are over AMD's Advancing AI 2026 event to chit chat on their newly revealed CDNA5 architecture with Alan Smith! AMD's Corporate Fellow and Chief Architect for Datacenter GPUs. Hope y'all enjoy! The transcript below…

Sunlight after dark

When your program asks for memory that is not in cache, the processor has to go to RAM. That trip costs on the order of 100 nanoseconds. On a 3 GHz core, that is about 300 cycles of doing nothing. Memory latency has not improved in ten years. The 2016 Broadwell…

Every week, I discuss with people who want to get a PhD. For years, I have been advising people not to pursue a PhD. It may come as a surprise to some. You would expect people with a PhD to earn more money. Individuals who complete doctorates tend to have…