Computers and Technology, 12.03.2020 18:30 taylor3865
This program doesn't terminate when it's run: #include "csapp. h" int main() { int fdsA[2]; int fdsB[2]; char buffer[2]; pid_t pid; Pipe(fdsA); Pipe(fdsB); pid = Fork(); if (pid == 0) { Dup2(fdsA[0], 0); Dup2(fdsB[1], 1); printf("hi"); fgets(buffer, 2, stdin); return 0; } Read(fdsB[0], buffer, 1); Write(fdsA[1], "ok", 2); Waitpid(pid, NULL, 0); return 0; } Why?
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Computers and Technology, 22.06.2019 10:30
Think about a recent customer service experience - either positive or negative. write a brief summary of that experience. now think about those four characteristics we look for in customer service representatives. how did the representative in your example stack up? write down your answer and give specific examples.
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Octothorpe is another name for what common computer keyboard symbol?
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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
This program doesn't terminate when it's run: #include "csapp. h" int main() { int fdsA[2]; int fdsB...
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