I developed 2 ASP.NET applications using LINQ. One connects to MS SQL Server, another to some proprietary memory structure.
Both applications work with tables of 3 fields, having 500 000 records (the memory structure is identical to SQL Server table). The controls used are regular: GridView and ObjectDataSourc e.
In the applications I calculate the average time needed for each paging click processing.
LINQ + MS SQL application demands 0.1 sec per page change.
LINQ + Memory Structure demands 0.8 sec per page change.
This Is shocking result. Why the application handling data in memory works 8 times slower than the application using hard drive? Can anybody tell me why that happens?
Both applications work with tables of 3 fields, having 500 000 records (the memory structure is identical to SQL Server table). The controls used are regular: GridView and ObjectDataSourc e.
In the applications I calculate the average time needed for each paging click processing.
LINQ + MS SQL application demands 0.1 sec per page change.
LINQ + Memory Structure demands 0.8 sec per page change.
This Is shocking result. Why the application handling data in memory works 8 times slower than the application using hard drive? Can anybody tell me why that happens?