Shubh

I built a production grade solana-indexer for @cypherzk_ in rust OSS code : github.com/subhdotsol/Ind… Functionality : - Raw yellowstone gRPC one stack below vixen - custom anchor event parser - zero-loss recovery : slot cursor + gap backfill + DLQ - realtime ws push via broadcast channel - telegram whale alerts - hexagonal arch : plug in any source or sink

unsafe is where rust starts trusting you

@aashwani_91612 @anza_xyz @kirat_tw @SuperteamIN @superteam

My PR just got merged into @anza_xyz 's agave • tightened alpenglow block limits based on the latest consensus whitepaper. • reduced the limits for alternate blocks and notarization fallback tracking. • added regression coverage for the updated fallback limit. cc : @solana PR link : github.com/anza-xyz/agave…

disassembled a rust std library's allocator alloc/dealloc is called on every Box drop, reimplemented from scratch in unsafe rust: - MyBox raw heap pointer with manual drop_in_place before dealloc - MyVec growable array: ptr::write to init, ptr::read to move out without Drop, realloc to double capacity - a NonNull is just a *mut T that proves non-null at compile time the borrow checker disappears you are the borrow checker now OSS : github.com/subhdotsol/uns…

catching up with @breakandbuildhq soon. we'll be talking all things @cypherzk_ private prediction markets, low level engineering, and why we think privacy should be the default see you all there ...

An exploded view of cyphers from prediction to settlement cc: @Arcium @solana @superteam

stay tuned 😁 cc : @SuperteamIN @solana

haha @shek_dev , by that logic scams improve financial literacy because victims become more careful 😂

@bharathshettyy @colosseum What would you do after hunting for them ?

Hunting for hidden gems from Colosseum Frontier.

spent whole day reading blogs about sBPF assembly, my brain hurts but at least the instructions are starting to make some sense now 🙂.

@_Aditya_45_ @solana @blueshift @deanmlittle @clairefxyz @kirat_tw finally someone who understands my development process

@Subhdotsol @solana @blueshift @deanmlittle @clairefxyz @kirat_tw Breaking down is always better than building up!!🔥🔥

disassembled a @solana amm's .so sol_cuvrve_validate_point (Ed25519 curve check) is called 10 times in the binary - not for signatures , for PDAs - a PDA is literally just a SHA 256 hash that fails elliptic curve membership - the AMM is doing cryptography to prove no private key can sign its token vaults

@rishavvrajj @solana @blueshift @deanmlittle @clairefxyz @kirat_tw hell had readable error messages , assembly didn’t

@Subhdotsol @solana @blueshift @deanmlittle @clairefxyz @kirat_tw Sometime we found peace in hell.

my toxic trait is believing in open source

slashed the compute units on my @solana AMM built with pinocchio

Just slashed the compute units on my @solana AMM built with pinocchio what i changed: - moved vault creation off chain - stopped creating ATAs in program - swapped TransferChecked for Transfer - cached reserves instead of reloading vaults - inlined the swap formula instead of calling a curve library CU before vs after the optimization :

@aashwani_91612 @0x_febo @anza_xyz @deanmlittle @blueshift 🤧

@Subhdotsol @0x_febo @anza_xyz @deanmlittle @blueshift Worth every byte of bandwidth

how i reduced my amm's compute units by ~50% after rewriting it in pinocchio the biggest wins came from : - zero copy instead of serialization - fewer abstractions - leaner account handling - lower runtime overhead next up: rewriting the hot paths in sbpf assembly to see how far i can push it OSS : github.com/subhdotsol/pin…

@aashwani_91612 @anza_xyz @solana @SuperteamIN nice i will write a optimized version of this being inspired from @deanmlittle

Implemented a merkle tree from scratch in rust ,inspired by reading the @anza_xyz agave validator codebase - understood how merkle proofs works - tree construction - merkle proof generation - proof verification. cc : @solana @SuperteamIN oss : github.com/aashwani106/me…

@bas_karo_anaya sometimes you need to complicate just to optimize 😂

Why do people have to complicate things? Can't they just be straightforward?

What's stopping you from coding like this 👀