By the Numbers
Since launching the devnet in late 2025, the network has been under continuous load testing. Here are the headline metrics as of this milestone:
These numbers reflect real execution — not theoretical maximums. The devnet has been running diverse workloads including token transfers, smart contract deployments, DEX swaps, oracle updates, and cross-lane transactions.
Performance Under Stress
We deliberately pushed the devnet to its limits to understand where bottlenecks appear. During a 48-hour sustained stress test, we maintained 85,000 transactions per second with the adaptive lane system scaling from 8 to 64 active lanes. Finality remained under 500ms throughout, with a brief spike to 620ms during peak lane reallocation.
The most interesting finding was how the adaptive consensus responded to a simulated validator dropout. When we intentionally took 30 of 128 validators offline simultaneously, the network experienced a 1.2-second pause before reorganizing and resuming at reduced but stable throughput. Full performance recovered within 8 seconds of validators rejoining.
What We Fixed Along the Way
Running a live devnet is the best way to surface issues that testing alone cannot find. Here are the most significant issues we addressed:
- Lane starvation edge case — Under specific workload patterns, low-priority lanes could be starved of resources. We introduced a guaranteed minimum allocation per lane that resolved this.
- State sync latency — New validators joining the network experienced higher-than-expected sync times. We optimized the state snapshot mechanism, reducing sync time from 45 seconds to under 8 seconds.
- Memory leak in transaction pool — A subtle memory leak in the pending transaction pool caused gradual performance degradation over multi-day runs. Identified and patched within 24 hours of detection.
- Fee estimation accuracy — The fee estimation API was over-estimating costs by 15-20% during rapid load changes. We refined the estimation model to account for adaptive parameter shifts.
Developer Feedback
Over 40 developers have deployed contracts on the devnet during this period. The most common feedback has been about the developer experience. The EVM compatibility layer has been praised for its accuracy — existing Solidity contracts deploy without modification. The Rust SDK has received positive feedback for its type safety and performance. Areas where we are improving include documentation depth, error message clarity, and tooling for debugging cross-lane transactions.
Road to Mainnet
This milestone marks the completion of Phase 1 of our devnet program. Phase 2 begins immediately with a focus on three areas: expanding the validator set to 256 nodes across 6 continents, launching a public testnet with faucet access for any developer, and completing a third-party security audit of the core protocol.
We are on track for mainnet launch in Q3 2026. Follow our progress on the Explorer or reach out at info@cool.icu.