| Report Date | Date of submission (2025/07/21) |
| Submitted by | Alexandru Gheorghe |
During the reporting period, I continued my work on improving the scalability, stability, and performance of the Polkadot network.
On the performance side, I've spent most of my time helping to increase the parachains' single-core throughput by optimizing various parts of our Trie database and weights stack and evaluating the impact of the optimizations. For this goal, I profiled and implemented several optimizations to help pack more Solidity smart contract calls on AssetHub, this resulted in reducing the per key read/write costs in validation context from 25us/100us to around 13/31us. I also finished improving the parachain block import and authoring time by making sure we keep the entire state in memory inside the TrieCache PR7682 and collaborated with Andrei Eres at an E2E test that prove the benefits of this optimisation with ERC20 transfers.
On the scalability and stability side, I worked on making sure Polkadot and Kusama incidents are properly understood, and the lessons learnt from it addressed, to achieve this goal I've been involved in root-causing, providing fixes and versi scale testing of the changes. List of issues that I've been positively contributing to:
Besides the mentioned topics, I'm providing reviews for my area of expertise in polkadot-sdk and RFCs.
Provide your voting record in relation to required thresholds for your rank.
| Ranks | Activity thresholds | Agreement thresholds | Member's voting activities | Comments |
|---|---|---|---|---|
| I | 90% | N/A | I have voted on 0 out of 0 referenda in which I was eligible to vote (i.e 100 % voting activity) | There were no referendums available for my rank to vote on. |
| II | 80% | N/A | ||
| III | 70% | 100% | ||
| IV | 60% | 90% | ||
| V | 50% | 80% | ||
| VI | 40% | 70% |
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I think the evidence should not just contain a list of merge requests but rather put them into perspective for someone who does not know anything about them.
Like: Why was it important for me to work on this? How is it relevant for Polkadot? (something like this)