
Lists of Long Descriptive type Questions that may be asked in Written Exams.
- (1) Explain deadlock ignorance. OR Explain Ostrich Algorithm.
- Pretend (imagine) that there’s no problem.
- This is the easiest way to deal with problem.
- This algorithm says that stick your head in the sand and pretend (imagine) that there is no problem at all.
- This strategy suggests to ignore the deadlock because deadlocks occur rarely, but system crashes due to hardware failures, compiler errors, and operating system bugs frequently, then not to pay a large penalty in performance or convenience to eliminate deadlocks.
This method is reasonable if
- Deadlocks occur very rarely
- Cost of prevention is high
- UNIX and Windows take this approach
- Resources (memory, CPU, disk space) are plentiful
- Deadlocks over such resources rarely occur
- Deadlocks typically handled by rebooting
- Trade off between convenience and correctness
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