P3. In Section 4.2 , we noted that the maximum queuing delay is (n–1)D if the switching fabric is n times faster than the input
line rates. Suppose that all packets are of the same length, n packets arrive at the same time to the n input ports, and all n packets want to be forwarded to different output ports. What is the maximum delay for a packet for the (a) memory, (b) bus, and (c) crossbar switching fabrics?
1 answer:
You might be interested in
Answer:
The answer is "5.5 and 90.90%"
Explanation:
For point 1:
To calculate the speed from fast mode, its run time without enhancement should be worked out. Designers are aware of which two selves are implicated throughout the accelerated project planning: the empty () and the increased stages (
).
Although not enhanced, this would take almost as long () and for the combine to give phase; even so, the increased phase would've been 10 times longer, as well as
. Thus the corresponding total speed without enhancement is
Its overall speed is:
For point 2:
We re-connect these figures in Amdahl's Law throughout order to identify how long it would take for both the initial implementation: