I/O Bound
I/O-bound tasks are operations that spend most of their time waiting for input/output operations to complete. These operations typically involve interacting with external resources.
Examples:
- Reading from or writing to files
- Network requests (API calls, database queries)
- User input
Characteristics:
- Spend more time waiting than computing.
- Often have unpredictable completion times.
- Don't fully utilize CPU resources.
Relation to Async and Threads:
- Async programming is particularly well-suited for I/O-bound tasks.
- This can be efficiently handled using a single thread with an event loop
- Multithreading can be overkill and may introduce unnecessary overhead.
CPU Bound
CPU-bound tasks are operations that spend most of their time performing CPU computations.
Examples:
- Complex mathematical calculations
- Image or video processing
- Data encryption/decryption
Characteristics:
- Require significant processing power.