Contract profiler

[ProgramCrafter]

Summary

Contract emulator that can show number of times each instruction is ran and how much gas does it cost.

Context

Such tool would be useful for optimizing gas usage and therefore would cut down on contract fees.

Goals

Create crossplatform profiler for TON contracts.

Deliverables

• Creating program that is able to locally execute transactions and run tests meanwhile measuring gas usage and execution count for each instruction
• Making this program crossplatform preferably without Docker, as Docker claims not to work in nested virtualization, and sometimes TON-related programs have to be ran in a VM

Definition of Done

• [ ] Profiler can execute a transaction locally when FunC/Fift/TVM code of contract and transaction data is provided
• [x] Program can measure gas usage while running contract tests (as toncli new-tests mode)
• [x] Profiler becomes available on all platforms: Windows, Linux, macOS (preferably without Docker)

Reward

• Standard TON Footstep NFT
• 3500$ in TON equivalent

[Gusarich]

@ProgramCrafter Are you sure it will be really useful to just show how many times each TVM instruction had been called? Anyway, I think it'll be a lot easier to implement using ton-contract-executor or sandbox without any dockers and without compiling binaries.

[ProgramCrafter]

Both of these have VM implemented as WASM blob, so it's not obvious how to patch them:

• ton-contract-executor: https://raw.githubusercontent.com/ton-community/ton-contract-executor/main/src/vm-exec/vm-exec-wasm.js
• sandbox: https://raw.githubusercontent.com/ton-community/sandbox/main/src/executor/emulator-emscripten.wasm.js

[ProgramCrafter]

Features set can be extended and balanced with the reward, for sure 😀 For example, profiler could dump information in some standartized format.

[delovoyhomie]

Indeed, the idea is quite commendable. @ProgramCrafter, the discussion is still pending. If the topic remains relevant, let's push to fine-tune it, or we will be compelled to close the discussion after two weeks.

@ProgramCrafter, what do you think?

[ProgramCrafter]

@delovoyhomie It turns out that there is already such a tool for Fift! https://github.com/tact-lang/ton-coverage

(example from the repository)

It would be nice, then, to add support of higher-level languages!

[delovoyhomie]

This issue has been automatically closed due to 14 days of inactivity and lack of the additional information requested. Please feel free to reopen it if you wish to provide further details or require assistance.