AI 中文总结
本文针对Sui区块链，采用仅写集模型分析主网数据，发现只读依赖会导致虚假争用、DeepBook未造成严重顺序瓶颈，且10%-50%的价值流受顺序执行路径约束。
AI 中文摘要
Sui的以对象为中心的数据模型支持并行交易执行，但实际性能本质上受工作负载争用的限制。此前对Sui的实证分析依赖于从基于账户的区块链继承而来的“读+写”（R+W）冲突图，由于Sui的引擎仅对可变共享访问进行序列化，R+W图包含虚假边，从而高估了争用情况。在本文中，我们采用互补的“仅写集”（W-only）模型，其中每条边代表一个真实的写序列化事件，提供了争用的下界，两种模型共同界定了Sui真实的执行依赖结构。通过对截至2025年的Sui主网数据应用W-only分析，我们得出三个主要发现：第一，去除只读依赖（尤其是系统时钟）会导致此前报道的“星型”结构崩溃，剩余的争用拓扑具有高度同配性且由团主导，W-only界值使Sui最优并行性空间的R+W估计值降低了约30%至40%；第二，通过并查集对象分组，我们识别出DeepBook（Sui的原生中央限价订单簿），尽管它在交易量上主导争用，但其底层逻辑并未造成不成比例的顺序瓶颈；最后，我们量化了争用的经济成本，表明网络中10%至50%以美元计价的价值流受限于顺序执行路径，使其面临潜在的排序效应风险。
英文摘要
Sui's object-centric data model enables parallel transaction execution, but realised performance is fundamentally bounded by workload contention. Prior empirical analyses of Sui have relied on "read+write" (R+W) conflict graphs inherited from account-based blockchains. Because Sui's engine serialises only on mutable shared access, R+W graphs contain spurious edges, bounding contention from above. In this paper, we adopt a complementary "write-set-only" (W-only) model in which every edge represents a real write-serialisation event, providing a lower bound on contention. Together, the two models bracket Sui's true execution-dependency structure. Applying the W-only analysis to Sui mainnet data through 2025 yields three primary findings. First, removing read-only dependencies (notably the system clock) causes previously reported "hub-and-spoke" structures to collapse. The remaining contention topology is highly assortative and clique-dominated, with the W-only bound shaving roughly $30$--$40\%$ off the R+W estimate of Sui's optimal-parallelism headroom. Second, via union-find object grouping, we isolate DeepBook (Sui's native central limit order book). While it dominates contention by volume, its underlying logic does not impose disproportionate sequential bottlenecks. Finally, we quantify the economic cost of contention, showing that $10$--$50\%$ of the network's USD-denominated value flows through sequentially constrained execution paths, exposing it to potential ordering effects.
Comments25 pages, 18 figures. Accepted for publication at AFT 2026
DOI：10.4230/LIPIcs.AFT.2026.20
