jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

ripatel-fd

Consider this an informal guide to reading the Solana snapshot format. This guide is written for Solana Labs versions v1.14 through v1.17.

You are probably reading this because you want to read the accounts in a snapshot without going through the pain of interfacing with the Solana Labs codebase.

Terminology

We assume general familiarity with the Solana ledger.

the-orex

# Only package specifics to tracking
[dev-dependencies]
colored = "=2.2.0" # Bring some colors to the terminal
ctor = "=0.2.9" # Used to execute a function when tests finishes
once_cell = "=1.20.2"
lazy_static = "=1.5.0"

deanmlittle

Deconstructing fib.so, a minimal sBPF program

For this deconstruction, we will be researching fib.so, a hand-rolled sBPF assembly program that calculates the fibonacci number based upon a u8 input.

Structure of an sBPF program

The structure of an sBPF program has 4 sections:

1. ELF Header

The starting point of the file, describing the overall file format, target environment, and offsets for program and section headers.

2. Program Headers

Define the memory segments and their attributes (readable, writable, executable) for runtime execution.