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The processor inside your next smartphone is like nothing you've ever seen before. The fastest mobile CPU on the planet is here. 🔁 if you want one. - Up to 20% CPU performance improvement - Up to 32% responsiveness improvements - Up to 35% better CPU power efficiency #SnapdragonSummit

34,050 просмотров • 9 месяцев назад •via X (Twitter)

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*** SEGA GENESIS/MEGADRIVE - SCALING PART 2 *** Whats better on a Friday than seeing some scaling effects on the Megadrive ? .. nothing, so read on ... In the previous part we were software scaling in either axis by a given factor, but I couldn't change the scale factor per scanline on the same frame, so I couldn't skew the base image for tilting into screen eg Mode 7 type effects. - One issue was it was scaling column by column which got wrecked for performance trying per scanline adjustments. So I converted to a row scaler rather than column, this allowed expansions and contractions on a per scanline basis. - Speed up the code significantly , now running a sprite load + music + scaling on cpu with ~50% cpu free. Relied heavily on Python scripts I wrote to generate the 68k assembly for this as it was mind numbing labourious. In doing so I got the scripts competing with each other to come up with the fastest method for each scale , I'm starting to like python ;-) - Tried all sorts to speed up the horizontal interupt - handles vertical scaling, exotic methods eg unsafe interupts / racing the beam & updating the vertical scroll every X cpu cycles, in the end the Z80 cpu (audio) stealing the 68k cpu bus intermittendly just killed these ideas as it would only be 95% stable, ended up just doing smarter interupts that saved a lot of cpu instead. - The good and the bad, spent too long on this is the bad, the good is we will need it in Lufthoheit in a few places to make up for that !! Carsten666 CYBERDEOUS - Crouzet Laurent #SGDK #SegaMegadrive #SegaGenesis

Shannon Birt

11,070 просмотров • 1 год назад

Microsoft sold every spare CPU it had to Anthropic and OpenAI. Amazon tripled its CPU buys year over year and still can't keep up. Two of AWS's biggest customers asked Andy Jassy if they could buy the entire 2026 production run of Graviton chips. He said no. The ratio inside an AI datacenter used to be 100 megawatts of GPUs to 1 megawatt of CPUs. CPUs handled storage, checkpointing, pre-processing. Light work. GPUs did the actual training and inference. Then OpenAI shipped o1-preview in September 2024. RL post-training went from "check the model output with a regex" to "run classifiers" to "compile the code and run the unit tests" to "spin up a sandbox, call three databases, run a physics simulation, verify the answer." Every rollout now needs a CPU-backed environment to verify against. Codex 5.4 runs agentically for 6-7 hours at a time. Each database call, each cron job, each scraped URL is CPU work. Coding agent revenue went from a couple billion to north of $10B in six months. That compute is sitting on CPUs. The CPU to GPU ratio is now approaching 1:1. The entire global cloud was built for 1:8. That's why GitHub has been unstable for weeks. Nvidia and Arm both announced they're entering the server CPU market in March. TSMC will only meet 80% of server CPU wafer demand this year. High-end server CPU prices are already up 50%. When the GPU king and the IP licensor both pivot to CPUs in the same month, the boring chip isn't boring anymore.

Aakash Gupta

290,767 просмотров • 3 месяцев назад