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Can't access a file in parallel If any process lock the file. Incase of shared lock as well, It may degrade performance as it is IO operation, if your are not reading file sequentially, performance will degrade. You need to access file using memory mapping or using buffered I/O.
- Sach July 13, 2012You can also use your own buffering mechanism creating a separate thread to maintain read buffer. Creating Consumer and Producer relating ship between two threads.