I/O Performance Measures
1. Diversity-Depends on the I/O devices connected to the
computer system.
2. Capacity- Number of I/O devices connected to the
system.
Traditional Measures are:
- Response time (latency)
- throughput( bandwidth)
-In Producer server model the producer creates tasks to
be performed and places them in a buffer, the server
takes tasks from the first in, first out buffer and performs
them.
-Response time is defined as the time a task takes from
the moment it is placed in the buffer until the server
finishes the task.
Response time = Queue + Device Service time
