benchmark 音标拼音: [b'ɛntʃm
, ɑrk]
n . 基准;评效
基准;评效
benchmark 基准
BM benchmark 基准
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 [
synonym :
{
benchmark }, {
bench mark }]
benchmark \
benchmark \,
bench mark \
bench mark \ (
Surveying )
1 .
Any permanent mark to which other levels may be referred .
such as :
(
a )
A horizontal mark at the water '
s edge with reference to which the height of tides and floods may be measured .
(
b )
a surveyer '
s mark on a permanent object of predetermined position and elevation used as a reference point .
[
Webster 1913 Suppl .
WordNet 1 .
5 ]
2 .
something serving as a standard by which related items may be judged ;
as ,
his painting sets the benchmark of quality .
[
PJC WordNet 1 .
5 ]
3 .
a test or series of tests designed to compare the qualities or performance of different devices of the same type .
Certain sets of computer programs are much used as benchmarks for comparing the performance of different computers ,
especially by comparing the time it takes to complete a test .
[
PJC ]
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 )benchmark :
n . [
techspeak ]
An inaccurate measure of computer performance .
“
In the computer industry ,
there are three kinds of lies :
lies ,
damn lies ,
and benchmarks .”
Well -
known ones include Whetstone ,
Dhrystone ,
Rhealstone (
see h ),
the Gabriel LISP benchmarks ,
the SPECmark suite ,
and LINPACK .
See also machoflops ,
MIPS ,
smoke and mirrors .
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