FunRedisp: Reordering Function Dispatch in Smart Contract to Reduce Invocation Gas Fees
Smart contracts mostly written in Solidity are Turing-complete programs executed on the blockchain platforms such as Ethereum. To prevent resource abuse, a gas fee is required when users deploy or invoke smart contracts. Although saving gas consumption has received much attention, no work investigates the effect of function dispatch on the invocation gas consumption. In this paper, after demystifying how the function dispatch affects the invocation gas consumption, we present \textsf{\textsc{FunRedisp}}, a bytecode refactoring method and an open-source tool, to reduce the overall invocation gas consumption of smart contracts. At the source code level, \textsf{\textsc{FunRedisp}} initially identifies hot functions in a smart contract that have a big chance to be invoked, and then move them to the front of the function dispatch at the bytecode level. We implement \textsf{\textsc{FunRedisp}} and evaluate it on 50 real-world smart contracts randomly selected from Ethereum. The experimental results demonstrate that \textsf{\textsc{FunRedisp}} can save approximately 125.17 units of gas per transaction with the compilation overhead increased by only 0.37 seconds.
Fri 20 SepDisplayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change
13:30 - 14:50 | Smart ContractsTechnical Papers at EI 10 Fritz Paschke Chair(s): Michael Pradel University of Stuttgart | ||
13:30 20mTalk | Empirical Study of Move Smart Contract Security: Introducing MoveScan for Enhanced Analysis Technical Papers Shuwei Song University of Electronic Science and Technology of China, Jiachi Chen Sun Yat-sen University, Ting Chen University of Electronic Science and Technology of China, Xiapu Luo Hong Kong Polytechnic University, Teng Li University of Electronic Science and Technology of China, Wenwu Yang University of Electronic Science and Technology of China, Leqing Wang University of Electronic Science and Technology of China, Weijie Zhang Jiangsu University of Science and Technology, Feng Luo Hong Kong Polytechnic University, Zheyuan He University of Electronic Science and Technology of China, Yi Lu BitsLab, Pan Li MoveBit DOI | ||
13:50 20mTalk | FunRedisp: Reordering Function Dispatch in Smart Contract to Reduce Invocation Gas Fees Technical Papers Yunqi Liu Nanjing University of Science and Technology, Wei Song Nanjing University of Science and Technology DOI | ||
14:10 20mTalk | Identifying Smart Contract Security Issues in Code Snippets from Stack OverflowACM SIGSOFT Distinguished Paper Award Technical Papers Jiachi Chen Sun Yat-sen University, Chong Chen Sun Yat-sen University, Jiang Hu Sun Yat-sen University, John Grundy Monash University, Yanlin Wang Sun Yat-sen University, Ting Chen University of Electronic Science and Technology of China, Zibin Zheng Sun Yat-sen University DOI Pre-print | ||
14:30 20mTalk | Midas: Mining Profitable Exploits in On-Chain Smart Contracts via Feedback-Driven Fuzzing and Differential Analysis Technical Papers Mingxi Ye Sun Yat-sen University, Xingwei Lin Zhejiang University, Yuhong Nan Sun Yat-sen University, Jiajing Wu Sun Yat-sen University, Zibin Zheng Sun Yat-sen University DOI | ||