1993年加入中国科学院计算技术研究所，2006年于中国科学院计算技术研究所获得博士学位（计算机系统结构专业）。2012年被聘为博士生导师，2013年被聘为研究员。曾主持研制了曙光系列超级计算机的高性能机群文件系统DCFS，获得2006年国家科学技术进步奖二等奖，2005年中国科学院杰出科技成就集体奖。是中国计算机学会高级会员、IEEE会员、ACM会员、CCF信息存储技术专业委员会委员。近年来致力于面向云计算、大数据和AI等应用的数据中心存储系统，主要研究成果包括面向中心混合负载的分布式存储系统QWin、面向大数据分析的向量化存储与查询处理系统包括Mastiff、VEE、CStream、H-Scheduler、NV-Shuffle等、面向闪存和非易失主存的高性能键值存储系统包括HiKV、pCompaction、dCompaction、LightKV等。

存储系统软件。面向中心混合负载场景，针对低延迟高性能的存储设备和网络设备带来的新挑战，研究尾延迟可控的高性能分布式存储系统。

[1]Liuying Ma, Zhenqing Liu, Jin Xiong and Dejun Jiang, QWin: Core Allocation for Enforcing Differentiated Tail Latency SLOs at Shared Storage Backend, 42nd IEEE International Conference on Distributed Computing Systems (ICDCS'22), July 10-13, 2022, Bologna, Italy

[2]Yijie Shen, Jin Xiong, Dejun Jiang. Using Vectorized Execution to Improve SQL Query Performance on Spark. 50th International Conference on Parallel Processing (ICPP 2021), August 9-12, 2021, Virtually in Chicago, Illinois, USA

[3]Yin Wang, Dejun Jiang, Jin Xiong. NUM A-Aware Thread Migration for High Performance NVMM File Systems. 36th International Conference on Massive Storage Systems and Technology (MSST 2020), October 29th and 30th, 2020, Santa Clara, CA, USA

[4]Fei Xia, Dejun Jiang, Jin Xiong, Ninghui Sun, HiKV: A Hybrid Index Key-Value Store for DRAM-NVM Memory Systems. 2017 USENIX Annual Technical Conference (USENIX ATC 2017):349-362, July 12-14, 2017, Santa Clara, CA, USA

[5]Fengfeng Pan, Yinliang Yue, Jin Xiong, dCompaction: Speeding up compaction of the LSM-tree via delayed compaction, Journal of Computer Science and Technology (JCST) 32(1):41-54, Jan. 2017

[6]Sijie Guo, Jin Xiong, Weiping Wang, Rubao Lee, “Mastiff: A MapReduce-based System for Time-based Big Data Analytics”, 2012 IEEE International Conference on Cluster Computing (Cluster 2012), Sept. 24-28, 2012, Beijing, China, pp. 72-80

[7]Jin Xiong, Yiming Hu, Guojie Li, Rongfeng Tang, Zhihua Fan, “Metadata Distribution and Consistency Techniques for Large-scale Cluster File Systems”, IEEE Transactions on Parallel and Distributed Systems, Vol. 22, No. 5, May 2011, pp.803-816

[8]Jing Xing, Jin Xiong, Ninghui Sun, Jie Ma, “Adaptive and Scalable Metadata Management to Support Trillion Files”, 2009 International Conference for High Performance Computing, Networking, Storage and Analysis (SC’09), Nov. 14-20, 2009, Portland, Oregon, USA

[9]Zhuan Chen, Jin Xiong, Dan Meng, “Replication-based Highly Available Metadata Management for Cluster File Systems”, 2010 IEEE International Conference on Cluster Computing (Cluster 2010), Sep. 20-24, 2010, pp.292-301, Crete, Greece

[10]Jin Xiong, Sining Wu, Dan Meng, Ninghui Sun, Guojie Li, “Design and Performance of the Dawning Cluster File System”, 2003 IEEE International Conference on Cluster Computing (Cluster 2003), December 1-4, 2003, Hong Kong, page 232-239