feat: add EIP-7702 SetCode workload for type-4 stress - #54
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Add workload = "eip7702" that deploys a minimal delegate, cascade-funds ETH only, and issues self-sponsored type-4 SetCode txs at target TPS. Track nonce_increment (2 for self-sponsored 7702) so the address pool advances correctly after inclusion. Keep enable_swap_token as a legacy fallback when workload is omitted.
The previous solc empty-contract runtime ended in REVERT (5f80fd), so every self-sponsored type-4 call landed with status=0x0. Use a one-byte STOP runtime so the call succeeds after set-code.
Replace the no-op STOP delegate with BatchExecutor.multiSend so each type-4 tx re-delegates the sender then calls the EOA itself with a batch of ETH transfers (default 4 recipients × 1 gwei). Funds circulate among workers; gas limit raised for auth + multi-call overhead.
multiSend targets other workers that already set code to BatchExecutor.
Without receive/fallback, empty-calldata value transfers hit the selector
dispatch and revert ("send"), so most type-4 txs failed after the first
round of delegations. Trace confirmed: second CALL to a 0xef0100 EOA reverted.
Public testnet default rpc.txfeecap is 1 ETH. EIP-7702 stress used 350k gas × 5000 Gwei = 1.75 ETH and was rejected at send. Keep tip at 500 Gwei (txpool promote) but maxFee 1000 Gwei so 7702 reserve is 0.35 ETH. Lockstep faucet per-tx budget to 0.35 ETH. Stop scaling cascade to 99% of on-chain faucet balance (breaks shared multi-leg faucets). Use global bench fees for 7702 delegate deploy (0.5 ETH product under cap).
keanji-x
approved these changes
Aug 10, 2026
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Summary
workload = "eip7702"that deploys a minimal fallback-only delegate from the faucet, cascade-funds ETH only (skips ERC20 deploy/distribution), and drives self-sponsored type-4 SetCode transactions attarget_tps.nonce_increment(2 for self-sponsored 7702: tx + auth) so the address pool advances correctly after inclusion; keepenable_swap_tokenas a legacy fallback whenworkloadis omitted.bench_config.template, and extend recover snapshots witheip7702_delegate.Test plan
cargo check/cargo build --releaseon this branchworkload = "eip7702", lowtarget_tps(e.g. 10), finiteduration_secs; confirm delegate deploy, ETH faucet, and type-4 inclusion--recoverand verify snapshoteip7702_delegateis reused without redeployingworkload = "erc20"(or omit +enable_swap_token = false) still runs ERC20 pathworkload = "swap"(or legacyenable_swap_token = true) still runs Uniswap path