Optimization Of Ceph Reads/Writes Based On Multi-Threaded Algorithms

Ceph is an open source distributed file system. Based on two methods of command line and library librados, we implement the files reads/writes(also called download/upload) algorithms. For the library librados method, we apply two different multi-threaded algorithms to optimize the files reads/writes. The results show that the performance of multi-threaded algorithms of downloading/uploading small files are improved by 7624%, 2827% respectively compared to the method of command line, the performance are improved by 58.95%, 170.36% compared to the method of library librados; the performance of one producer thread and one consumer thread model for downloading large files is improved by 22.42% compared to the method of downloading large files serially, but has no distinct effect on uploading large files. We analyze the reason and give suggestions for the future work.