hydroreadsstuff (u/hydroreadsstuff)

hydroreadsstuff commented on Valve reveals it’s the architect behind a push to bring Windows games to Arm theverge.com/report/82065... · Posted by u/evolve2k

btdmaster · 25 days ago

> When you get into lower power, anything lower than Steam Deck, I think you’ll find that there’s an Arm chip that maybe is competitive with x86 offerings in that segment.

At which point does this pay off the emulation overhead? Fex has a lot of work to do to bridge two ISAs while going through the black box of compiler output of assembly, right?

hydroreadsstuff · 25 days ago

afaia emulators like Fex are within 30 to 70% of native performance. On the fringes worse or better. But overall emulation seems totally fine. Plus emulator technology in general could be used for binary optimization rather than strict mappings, opening up space for more optimization.

hydroreadsstuff commented on FEX-emu – Run x86 applications on ARM64 Linux devices fex-emu.com/... · Posted by u/open-paren

hydroreadsstuff · a month ago

Some companies like to stress the efficiency or performance of Arm SoCs, but really this is a hedge against more expensive x86 hardware. AMD has increased prices of mobile SoCs radically recently. I'm looking forward to having more affordable SoC options for laptops, handhelds and desktops, perhaps from Mediatek or other lower-cost vendors.

The history of the PC is one of commoditization. A fractured multi-polar landscape is detrimental to the ecosystem/productivity and should ultimately fail.

x86 emulation is an important puzzle piece, and I'm happy Valve recognizes this and sponsors it.

hydroreadsstuff commented on Seoul says US must fix its visa system if it wants Korea's investments english.hani.co.kr/arti/e... · Posted by u/garbawarb

andris9 · 4 months ago

I once flew to the US for a week on ESTA to attend a few meetings (pre-COVID), but I mostly just did my regular developer work in the US office. By today’s standards, would I have been shackled for that?

hydroreadsstuff · 4 months ago

That's what it seems like. Some people here disagree with you, but I can add anecdata that my employer insisted I do no coding on such a VISA.

hydroreadsstuff commented on AMD claims Arm ISA doesn't offer efficiency advantage over x86 techpowerup.com/340779/am... · Posted by u/ksec

Avi-D-coder · 4 months ago

From what I have heard it's not the RISCy ISA per se, it's largely arm's weaker memory model.

I'd be happy to be corrected, but the empirical core counts seem to agree.

hydroreadsstuff · 4 months ago

Indeed, the memory model has a decent impact. Unfortunately it's difficult to isolate in measurement. Only Apple has support for weak memory order and TSO in the same hardware.

Posted by u/hydroreadsstuff 5 months ago

The Next Step for AI – Full Personal Interaction Capture blog.automaton2000.com/20...

Deleted Comment

hydroreadsstuff commented on The Llama 4 herd ai.meta.com/blog/llama-4-... · Posted by u/georgehill

hydroreadsstuff · 9 months ago

This means GPUs are dead for local enthusiast AI. And SoCs with big RAM are in.

Because 17B active parameters should reach enough performance on 256bit LPDDR5x.

hydroreadsstuff commented on Undergraduate shows that searches within hash tables can be much faster quantamagazine.org/underg... · Posted by u/Jhsto

joaohaas · a year ago

Thanks for the video, def a lot better than the article.

I do find it a bit weird that this is somehow better than just over-allocating (and thus reducing the chances of key collisions, which also makes worst case 'less worse') given his approach also allocates more memory through the aux arrays.

hydroreadsstuff · a year ago

Overallcoation has a limit. You only have so much RAM/storage. Beyond that you start swapping. I could really use a hash table (or similar structure) that degrades less with higher occupancy.

hydroreadsstuff commented on Measuring Apple CPU Core-to-Core Latency Without Core-Pinning github.com/hydroo/macos-c... · Posted by u/hydroreadsstuff

IronWolve · a year ago

Interesting, would be nice to expand this to other cpus, and more features of a view into the cores. I know my current amd has 2 ccds, and 1 ccd is a tad slower according to amd ryzen master learning. But theres no fancy graphs.

hydroreadsstuff · a year ago

For other platforms there is already https://github.com/nviennot/core-to-core-latency

This project works around a limitation in MacOS, namely lack of thread pinning, and makes it possible to do it without Asahi Linux, and without using custom MacOS kernel extensions and disabling security features.

Posted by u/hydroreadsstuff a year ago

Measuring Apple CPU Core-to-Core Latency Without Core-Pinning github.com/hydroo/macos-c...

u/hydroreadsstuff

KarmaCake day231October 9, 2018View Original