Bring the entire database in RAM. Use "vmtouch <database location>" Get vmtouch from https://hoytech.com/vmtouch/
I had used jena for 150M triples and my performance findings are documented at https://lists.apache.org/thread.html/254968eee3cd04370eafa2f9cc586e238f8a7034cf9ab4cbde3dc8e9@%3Cusers.jena.apache.org%3E Regards, Siddhesh On Fri, 7 Dec 2018, 8:23 pm y...@zju.edu.cn <y...@zju.edu.cn wrote: > Dear jena, > I have built a graph with 1.4 billion triples and store it as a data set > in TDB through Fuseki upload system. > Now, I try to make some sparql search, the speed is very slow. > > For example, when I make the sqarql in Fuseki in the following, it takes > 50 seconds. > How can I improve the speed? > ------------------------------ > Best wishes! > > > 胡云苹 > 浙江大学控制科学与工程学院 > 浙江省杭州市浙大路38号浙大玉泉校区CSC研究所 > Institute of Cyber-Systems and Control, College of Control Science and > Engineering, Zhejiang University, Hangzhou 310027,P.R.China > Email : y...@zju.edu.cn <y...@iipc.zju.edu.cn>;hyphy...@163.com > >
