Thank for for the feedback, that is nice to hear.
And as for the business question, we plan on launching a Sneller Cloud offering. (Sneller founder here)
Sneller founder here: we do not have any non-AVX code so we cannot compare directly against that. But generally speaking our code always works on 16 lanes in parallel per core, so that gives a huge speed-up.
Albeit not using gas, you may want to check out https://github.com/SnellerInc/sneller -- it has about ~250 primitives written in AVX-512.
(Sneller founder)
It clearly performs and scales a lot better than the Intel CPUs (no doubt also benefiting from the increased memory bandwidth) and at high core counts is very close to the Graviton2.
Furthermore, I agree that the “investment costs” for Amazon are almost minute, they might have already earned it back.
No, it is not an IR code such as in Java or .Net.
At compile time it is translated into opcodes for the corresponding architecture that you are compiling for.
That is a good question but have never tried it. However, there is nothing "special" about the assembly as ported by c2goasm, so it should equally well as any other (hand-crafted) assembly.
S3 data transfers costs are an issue -- that's why you can host minio yourself at any hosting company, and save significantly (multiple times) on data transfer and storage costs.
The Golang assembly does not support all instructions, we've created a tool (see https://github.com/minio/asm2plan9s) to assist in translating instructions into their opcode equivalents.
No we did not compare to SHA512 (since we don't need it).
I would expect SHA512 to be 2x faster compared to the SHA256 software version, but that is still way slower than the ARM SHA extensions accelerated version.
No, there are no algorithm changes (otherwise the results would be different), it is just taking advantage of the ARM SHA accelerations when they are available.
The library is not yet open sourced but will be soon. Some internals about how s3git uses the BLAKE2 hashing algorithm are described in https://github.com/s3git/s3git/blob/master/BLAKE2.md which may be of interest.
That is correct (see also earlier reply), it is aimed at really large repos with primarily non-text blobs backed up cloud storage like S3, but doing so in the spirit of git and hence the name.
