This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.
Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.
Follow these instructions for an easy way to get up and going quickly! These are complete instructions, and will be the easiest way to get started on a new RG35XX.
Get a high quality SD (e.g. SanDisk Extreme) card, 128GB or larger, 256GB is recommended. Don't skimp here, they're cheap, and don't use the card that comes with the RG35XX as it's crap.
Dear non-executive team members,
All of my options have vested, and I haven’t been offered any new ones so my earning potential here is no longer all that great. Worse, as we’ve operated and developed better understandings of the problems we face it seems less likely than ever that we’ll achieve the vision we set out to achieve. Finally, the blackout periods are having a real negative effect on my ability to diversify my wealth and avoid the high risk of this company’s success chances. Therefore I’m leaving on a “high note” while we can still plausibly call this endeavor a success, and after I’ve left will convert all my equity in this venture into other forms of wealth while not having to report it
| package main | |
| import ( | |
| "fmt" | |
| "hash" | |
| "io" | |
| "os" | |
| "github.com/pierrec/xxHash/xxHash64" | |
| ) |
| Interesting libraries I might like to use in a project... | |
| Asset loading: | |
| assetsys.h - virtual filesystem with ZIP backing, overlaying, etc https://github.com/mattiasgustavsson/libs/blob/master/docs/assetsys.md | |
| cute_filewatch.h - file modification watching, for runtime reloading etc https://github.com/RandyGaul/cute_headers/blob/master/cute_filewatch.h | |
| flatbuffers - data serialization, zero-copy deserialization, extensible schemas https://github.com/google/flatbuffers | |
| stb_image - https://github.com/nothings/stb/blob/master/stb_image.h | |
| tinyexr - https://github.com/syoyo/tinyexr | |
| tinygltf - https://github.com/syoyo/tinygltf | |
| tinyobjloader - https://github.com/syoyo/tinyobjloader |
why doesn't radfft support AVX on PC?
So there's two separate issues here: using instructions added in AVX and using 256-bit wide vectors. The former turns out to be much easier than the latter for our use case.
Problem number 1 was that you positively need to put AVX code in a separate file with different compiler settings (/arch:AVX for VC++, -mavx for GCC/Clang) that make all SSE code emitted also use VEX encoding, and at the time radfft was written there was no way in CDep to set compiler flags for just one file, just for the overall build.
[There's the GCC "target" annotations on individual funcs, which in principle fix this, but I ran into nasty problems with this for several compiler versions, and VC++ has no equivalent, so we're not currently using that and just sticking with different compilation units.]
The other issue is to do with CPU power management.
| Brief explanation what I did to get the speed-up, and the thought process behind it. | |
| The original code went: | |
| EnterLoop: | |
| movaps xmm3, xmmword ptr [edx+ecx*2] // Box1YZ | |
| cmpnltps xmm3, xmm2 | |
| movmskps eax, xmm3 | |
| cmp eax, 0Ch |
| ### | |
| ### | |
| ### UPDATE: For Win 11, I recommend using this tool in place of this script: | |
| ### https://christitus.com/windows-tool/ | |
| ### https://github.com/ChrisTitusTech/winutil | |
| ### https://www.youtube.com/watch?v=6UQZ5oQg8XA | |
| ### iwr -useb https://christitus.com/win | iex | |
| ### | |
| ### OR take a look at | |
| ### https://github.com/HotCakeX/Harden-Windows-Security |
| Filename | png | zs-png | Ratio | FSE | Ratio |
|---|---|---|---|---|---|
| sample_1.png | 12571 | 20789 | 1.6537 | 105187 | 8.3674 |
| sample_2.png | 16173 | 19218 | 1.1883 | 22466 | 1.3891 |
| sample_3.png | 22772 | 43185 | 1.8964 | 453191 | 19.901 |
| sample_4.png | 34414 | 39469 | 1.1469 | 138594 | 4.0273 |
| sample_5.png | 41010 | 21854 | 0.53289 | 46539 | 1.1348 |
| sample_6.png | 53151 | 60221 | 1.133 | 68586 | 1.2904 |
| sample_7.png | 59031 | 88853 | 1.5052 | 302027 | 5.1164 |