Compilers can have a profound impact on the performance of an application. assume that for a program, compiler a results in a dynamic instruction count of 1.0e9 and has an execution time of 1.1 s, while compiler b results in a dynamic instruction count of 1.2e9 and an execution time of 1.5 s. a. find the average cpi for each program given that the processor has a clock cycle time of 1 ns. b. assume the compiled programs run on two different processors. if the execution times on the two processors are the same, how much faster is the clock of the processor running compiler a’s code versus the clock of the processor running compiler b’s code? c. a new compiler is developed that uses only 6.0e8 instructions and has an average cpi of 1.1. what is the speedup of using this new compiler versus using compiler a or b on the original processor?

In the lab, which of the following displayed a list of all installed services and included a description of the service, the current state, and whether the service started automatically or manually? a. the services manager b. the applications summary c. the recommended services d. list the safe services list

Write the command that can be used to answer the following questions. (hint: try each out on the system to check your results.) a. find all files on the system that have the word test" as part of their filename. b. search the path variable for the pathname to the awk command. c. find all files in the /usr directory and subdirectories that are larger than 50 kilobytes in size. d. find all files in the /usr directory and subdirectories that are less than 70 kilobytes in size. e. find all files in the / directory and subdirectories that are symbolic links. f. find all files in the /var directory and subdirectories that were accessed less than 60 minutes ago. g. find all files in the /var directory and subdirectories that were accessed less than six days ago. h. find all files in the /home directory and subdirectories that are empty. i. find all files in the /etc directory and subdirectories that are owned by the group bin."

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