I/O operations in UNIX are inherently synchronous. The need for asynchronous I/O comes first from multithreaded applications where thrads cannot block for I/O, and second from the fact that asynchronous I/O has much less overhead than synchronous I/O. There are two main approaches to accomplishing asynchronous I/O in UNIX. We compare the two approaches in design and implementation, and report the results of extensive experiments to measure the performance differences.
|Number of pages||11|
|Journal||Software - Practice and Experience|
|Publication status||Published - 1996 Sep|
- Asynchronous I/O
- Blocking I/O
ASJC Scopus subject areas