Analysis And Optimization On Access Efficiency Of Mass Seismic Data

With the continuous development of exploration technology,the magnitude of earthquake data collected become bigger and bigger.The data access efficiency become the main bottleneck in the seismic data processing.This paper analyses and optimizes the mass seismic data access efficiency.The main work and innovation points include three aspects: design and implement the seismic data access data model which support multi-format.In seismic data access processes realize multi-threaded processing,and study the selection strategy of thread count.Design a monitor tool and formulate a series of optimization method for the seismic data storage information database.Firstly,design the seismic data model of multiple formats,which make the seismic data processing platform supports multiple data access.And design the general seismic data table structure.Practice shows that using multiple formats of seismic data model,saves the format conversion of the data processing stage's start and end time,and save some part of memory space.Secondly,deeply analyses the characteristics and system environment of the seismic data access process.Introduce the multithreading technology into the process of data access.And implements the multithreaded processing progress tracking,pause and recovery,and other functions.Mainly studies thread number selection method.Design a set of balancing strategy,which applied to multithreaded processing.Practice shows that multi-threading technology greatly improves the access efficiency.balancing strategy make multi-threaded use of system resources to a great extent.Finally,designs and realizes a database monitor tools.Demonstrates the database optimization method from the parameters,SQL statements,storage,indexing,and other aspects.Test for the efficiency before and after optimization.The results show that the optimized scheme of database actually improve the efficiency of the database insert and retrieve.