Computers and Technology, 06.10.2019 04:01 majakvcvc77
Race conditions are possible in many computer systems. consider a banking system that maintains an account balance with two functions: deposit(amount) and withdraw(amount). these two functions are passed the amount that is to be deposited or withdrawn from the bank account balance. assume that a husband and wife share a bank account. concurrently, the husband calls the withdraw() function and the wife calls describe how a race condition is possible and what might be done to prevent the race condition from occurring.
Answers: 3
Computers and Technology, 22.06.2019 07:00
For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. a. input b. output c. duo d. none of the above
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Computers and Technology, 22.06.2019 18:00
Budgets you to do all of the following expect a) send frivolously b) avoid over spending c) gain financial independence d) examine your priorities and goals
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Computers and Technology, 23.06.2019 01:30
Negative methods of behavior correction include all but this: sarcasm verbal abuse setting an example for proper behavior humiliation
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Computers and Technology, 23.06.2019 17:30
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, 2Δβ, 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 1.5Δβ 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?
Answers: 2
Race conditions are possible in many computer systems. consider a banking system that maintains an a...
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