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  2. Completely Fair Scheduler - Wikipedia

    en.wikipedia.org/wiki/Completely_Fair_Scheduler

    This is the time the process has been waiting to run, divided by the total number of processes. When the scheduler is invoked to run a new process: The leftmost node of the scheduling tree is chosen (as it will have the lowest spent execution time), and sent for execution. If the process simply completes execution, it is removed from the system ...

  3. Amdahl's law - Wikipedia

    en.wikipedia.org/wiki/Amdahl's_law

    For instance, if a programmer enhances a part of the code that represents 10% of the total execution time (i.e. of 0.10) and achieves a of 10,000, then becomes 1.11 which means only 11% improvement in total speedup of the program. So, despite a massive improvement in one section, the overall benefit is quite small.

  4. Time to live - Wikipedia

    en.wikipedia.org/wiki/Time_to_live

    The maximum TTL value is 255, the maximum value of a single octet. A recommended initial value is 64. [2] [3] The time-to-live value can be thought of as an upper bound on the time that an IP datagram can exist in an Internet system. The TTL field is set by the sender of the datagram, and reduced by every router on the

  5. CPU time - Wikipedia

    en.wikipedia.org/wiki/CPU_time

    This process took a total of 0.02 seconds of CPU time (User + System). The reported System time is 0.00 seconds, indicating that the amount of System time used was less than the printed resolution of 0.01 seconds. Elapsed real time was 0.08 seconds. The following is the source code of the application nextPrimeNumber which was used in the above ...

  6. Parallel task scheduling - Wikipedia

    en.wikipedia.org/wiki/Parallel_task_scheduling

    There is a set of jobs, and identical machines. Each job has a processing time (also called the length of j), and requires the simultaneous use of machines during its execution (also called the size or the width of j).

  7. Cycles per instruction - Wikipedia

    en.wikipedia.org/wiki/Cycles_per_instruction

    For example, with six executions units, six new instructions are fetched in stage 1 only after the six previous instructions finish at stage 5, therefore on average the number of clock cycles it takes to execute an instruction is 5/6 (CPI = 5/6 < 1). To get better CPI values with pipelining, there must be at least two execution units.

  8. Just-in-time compilation - Wikipedia

    en.wikipedia.org/wiki/Just-in-time_compilation

    JIT causes a slight to noticeable delay in the initial execution of an application, due to the time taken to load and compile the input code. Sometimes this delay is called "startup time delay" or "warm-up time". In general, the more optimization JIT performs, the better the code it will generate, but the initial delay will also increase.

  9. ICMP time exceeded - Wikipedia

    en.wikipedia.org/?title=ICMP_time_exceeded&...

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