Overview
the "Tuner", a programmable, transaction-based Uniswap V3 Simulator with 100% Precision
Before an orchestra, every musical instrument has to be in-tune, to ensure an outstanding performance.
Before running a strategy, every parameter has to be fine tuned, to maximize the performance.
Tuner is a programmatic Uniswap V3 simulator that allows strategy backtesting on a transaction-to-transaction basis with arbitrary or historical data without the EVM, it runs independently yet completely retains the exact smart-contract behavior of the intricate design and implementation of Uniswap V3.
Documentation
Developer Articles(stay tuned)
Tuner is fundamentally a state machine, it can:
Completely replicate the tick-level calculation
this means your strategy will run through the Uniswap V3 implementation logic instead of just the high-level mathematic model.
Maintain the identical tick-level precision of prices, fees, and positions of Uniswap V3
this means the result of your backtesting is true to the real performance with the minimum margin of deviations.
Run fast
the EVM is slow, the historical dataset is huge, the Ganache cannot do the job, so use Tuner.
Fast-forward and rewind transactions
this means you can easily repeat a small portion of your test with a different set of parameters without the need to start over.
Take or recover from a snapshot(state)
this means you can run continuous regression test as your strategies constantly evolves.
Branch out and runs in parallel
this means you can run multiple back-tests each with a different set of parameters at the same time and compare the performance.
Persist historical data and strategy execution records in a SQLite database
this means the strategists can do advanced statistical analysis both in real-time and after the testing.
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