Debbie wants to plan a monthly budget for her family. Sequence the steps that Debbie needs to take for preparing her personal budget.
categorize the expenses into those that
could be avoided and those that are not
avoidable (like mortgage payments)
write down all the expenses that the
family incurs for the month
cut down on the expenses that have been
identified as avoidable
translate the monthly budget into a yearly
budget to achieve long term goals
invest a small part of the money saved in
something that could help the money
increase in value
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When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?