什么是Benchmark?

Benchmark

国内的网站上搜不到合适的解释，百度百科也没说清楚，请教了一下wikipedia，得出以下解释：

In computing, a benchmark is the act of running a computer program, a set of programs, or other operations, in order to assess the relative performance of an object, normally by running a number of standard tests and trials against it. The term 'benchmark' is also mostly utilized for the purposes of elaborately-designed benchmarking programs themselves.

Benchmarking is usually associated with assessing performance characteristics of computer hardware, for example, the floating point operation performance of a CPU, but there are circumstances when the technique is also applicable to software. Software benchmarks are, for example, run against compilers or database management systems.

Benchmarks provide a method of comparing the performance of various subsystems across different chip/system architectures.

Test suites are a type of system intended to assess the correctness of software.

Open source benchmarks

• DEISA Benchmark Suite: scientific HPC applications benchmark
• Dhrystone: integer arithmetic performance
• Fhourstones: an integer benchmark
• HINT: It ranks a computer system as a whole.
• Iometer: I/O subsystem measurement and characterization tool for single and clustered systems.
• Linpack, traditionally used to measure FLOPS
• LAPACK^{[citation needed]}
• Livermore loops
• NAS parallel benchmarks
• NBench: synthetic benchmark suite measuring performance of integer arithmetic, memory operations, and floating-point arithmetic
• PAL: a benchmark for realtime physics engines
• Phoronix Test Suite: open-source cross-platform benchmarking suite for Linux,OpenSolaris, FreeBSD, OSX and Windows. It includes a number of other benchmarks included on this page to simplify execution.
• POV-Ray: 3D render
• Tak (function): a simple benchmark used to test recursion performance
• TATP Benchmark: Telecommunication Application Transaction Processing Benchmark
• TPoX: An XML transaction processing benchmark for XML databases
• Whetstone: floating-point arithmetic performance

Microsoft Windows benchmarks

• BAPCo: MobileMark, SYSmark, WebMark
• Futuremark: 3DMark, PCMark
• Whetstone
• Worldbench (discontinued)
• PiFast
• SuperPrime
• Super PI
• Windows System Assessment Tool, included with Microsoft Windows Vista and later Windows operating systems, providing an index for consumers to rate their systems easily

References

http://en.wikipedia.org/wiki/Benchmark_(computing)