Ethereum research report: State expiration can reduce state size by approximately 78%

Ethereum execution layer researcher Weiihann has released a performance experiment report on state expiration. After running the Ethereum mainnet block load on the Geth client for about 1 year, it was found that if only the active state was retained for 1 year, the database size could be reduced from 359 GB to 81 GB, a decrease of about 77.5%. In terms of performance, block re execution time has been reduced by about 15%, storage read latency has been significantly reduced, P50 latency has been reduced by 46%, P99 latency has been reduced by 36%, tail latency has been improved, and P99 block insertion time has been reduced by 21%. Future research will explore comparisons with other clients and different expiration periods.