All Core Devs - Testing (ACDT) #49 | Aug 18 2025

Protocol Calls & happenings
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ACD Testing Call #49 - Aug 18, 2025 (Quick Notes)

Facilitator: Mario Vega

Fusaka devnet status updates

Mario

  • Devnet 4 is currently down.

Barnabus

  • Devnet 3 remains online and will continue running for now.
  • Devnet 5 is targeted for launch next Tuesday, expected to be with no further spec clarifications needed. It will be pretty big.

Conclusion: Progress looks strong. The only pending step for clients is merging into the main branch—no other concerns have been reported.

BPO Static Tests Updates

Mario:

  • New release is ready.
  • Testing includes Devnet 4 scenarios.
  • Tests will be run against all clients to verify the BPO issue.
  • Hive updates will follow as soon as possible.

Gas Limit Testing Updates

60M Gas Pre-Fusaka

  • Discussion raised by Ben regarding moving to 60M gas limit.
  • Besu concerns:
    • Justin (Besu) expressed hesitancy about the move.
    • Current blockers include ecrecover performance, which remains a concern post-fork.
  • Kamil’s updates:
    • Geth work-in-progress with integrated EEST and benchmark tests.
    • In contact with the Besu team; new scenarios now available.
    • Working on stateful testing and deeper issue analysis.
    • Observed that EC performance is slow on Besu, while other clients perform well.
  • Tim Beiko (chat) asked if unchanged ecrecover pricing in Fusaka is still a blocker → Justin (Besu): Yes. Known issue: multiple opcodes at 45–60M gas range cause performance bottlenecks.

Action Items:

  • Kamil to document all areas under investigation and to share resources with Besu team.

References:

Other Updates

  • No additional concerns raised by other client teams.
  • Marius: Called for more benchmarking, especially regarding state.
  • Marius (chat): All clients failed snap sync on perf/devnet4.
  • Barnabas (chat): Shared failed test run – link.
  • Mario: New EEST tests being added to catch potential bugs.
  • Kamil: ecrecover performing well at 60M gas for all clients except Besu.
  • Encouraged all clients to align on EEST benchmarking instead of developing separate tools.
  • Ben: Reported Nethermind has no issues with 60M gas.
  • Louis (chat): Shared EEST benchmark reference for ecrecover.

PR #4508 – Ready for Merge

  • Barnabus brought up in the call
  • CL devs are requested to review.
  • If no objections, we should move forward with merging.
  • Alex Stokes: “Seems fine to me.”
  • Pawan (chat): “Looks good to me.”

Others: Please review, comment, and approve the PR.

Sunnyside Labs Testnet Updates

  • Minhyuk: No major updates this week, aside from the report shared last week.

Safe-Head Discussion

Conclusion (Gas Benchmarkin): Review benchmark results and continue discussion in next week’s ACDT.

PS: This is quick note following the livestream. If you have any corrections/improvement suggestions, please add here.

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