A place for talking about the Ethereum Virtual Machine on Farcaster.

Is there any comprehensive documentation on how gas metering works across EVM chains?

this is something I would love to see explained in rollup.codes

There are application-level features dependent upon opcode prices and overall gas logic.

Co-Founder at sablier.com, and open-source developer. I have a broad range of interests, including longevity, epistemology, physics, and psychology.

Isn't equivalent gas metering required to be EVM-equivalent?

Are there EVM rollups that changed their gas metering?

A doodler and computerer. I like permissive/permissionless open source, smart contracts, p2p systems, room-scale VR, and NixOS.

shazow.net

Currently: WhatsABI

Rollups have the L1 data fee that mainnet doesn’t. So you either:
- Bake that into the gas limit (arbitrum), so you still only have gas price and gas limit, but an ETH send uses ~400k gas and fluctuates based on L1 gas price
- Add L1 gas limit and price fields (Optimism), so L2 gas and cost matches the EVM

Security at Optimism. Formerly built Umbra and more at ScopeLift

During execution on arbitrum L2 gas consumption still matches, so logic based off that can still work, but gas limit based logic doesn’t translate

Ah so gas metering stays the same, but the gas limit logic can change as if there are additional phantom instructions outside of the scope of the contract. Makes sense.