资料来源 : pyDict

基准;评效

资料来源 : WordNet®

benchmark
     n 1: a standard by which something can be measured or judged;
          "his painting sets the benchmark of quality"
     2: a surveyor's mark on a permanent object of predetermined
        position and elevation used as a reference point [syn: {bench
        mark}]

资料来源 : Free On-Line Dictionary of Computing

benchmark
     
         A standard program or set of programs which can be
        run on different computers to give an inaccurate measure of
        their performance.
     
        "In the computer industry, there are three kinds of lies:
        lies, damn lies, and benchmarks."
     
        A benchmark may attempt to indicate the overall power of a
        system by including a "typical" mixture of programs or it may
        attempt to measure more specific aspects of performance, like
        graphics, I/O or computation (integer or {floating-point}).
        Others measure specific tasks like {rendering} polygons,
        reading and writing files or performing operations on
        matrices.  The most useful kind of benchmark is one which is
        tailored to a user's own typical tasks.  While no one
        benchmark can fully characterise overall system performance,
        the results of a variety of realistic benchmarks can give
        valuable insight into expected real performance.
     
        Benchmarks should be carefully interpreted, you should know
        exactly which benchmark was run (name, version); exactly what
        configuration was it run on (CPU, memory, compiler options,
        single user/multi-user, peripherals, network); how does the
        benchmark relate to your workload?
     
        Well-known benchmarks include {Whetstone}, {Dhrystone},
        {Rhealstone} (see {h}), the {Gabriel benchmarks} for {Lisp},
        the {SPECmark} suite, and {LINPACK}.
     
        See also {machoflops}, {MIPS}, {smoke and mirrors}.
     
        {Usenet} newsgroup: {news:comp.benchmarks}.
     
        {Tennessee BenchWeb (http://netlib.org/benchweb/)}.
     
        [{Jargon File}]
     
        (2002-03-26)