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  2. Memory bandwidth - Wikipedia

    en.wikipedia.org/wiki/Memory_bandwidth

    Memory bandwidth that is advertised for a given memory or system is usually the maximum theoretical bandwidth. In practice the observed memory bandwidth will be less than (and is guaranteed not to exceed) the advertised bandwidth. A variety of computer benchmarks exist to measure sustained memory bandwidth using a variety of access patterns ...

  3. LINPACK benchmarks - Wikipedia

    en.wikipedia.org/wiki/LINPACK_benchmarks

    The LINPACK Benchmarks are a measure of a system's floating-point computing power. Introduced by Jack Dongarra, they measure how fast a computer solves a dense n by n system of linear equations Ax = b, which is a common task in engineering. The latest version of these benchmarks is used to build the TOP500 list, ranking the world's most ...

  4. Random-access memory - Wikipedia

    en.wikipedia.org/wiki/Random-access_memory

    When the system runs low on physical memory, it can "swap" portions of RAM to the paging file to make room for new data, as well as to read previously swapped information back into RAM. Excessive use of this mechanism results in thrashing and generally hampers overall system performance, mainly because hard drives are far slower than RAM.

  5. Cache performance measurement and metric - Wikipedia

    en.wikipedia.org/wiki/Cache_performance...

    Cache performance measurement and metric. A CPU cache is a piece of hardware that reduces access time to data in memory by keeping some part of the frequently used data of the main memory in a 'cache' of smaller and faster memory. The performance of a computer system depends on the performance of all individual units—which include execution ...

  6. Computer performance - Wikipedia

    en.wikipedia.org/wiki/Computer_performance

    In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be ...

  7. Sysbench - Wikipedia

    en.wikipedia.org/wiki/Sysbench

    Sysbench can be run benchmark test specified in a linux shell or in shell script, or there are several other commands such as prepare or cleanup. The type of test to run is specified in the command options and would be one of: cpu: CPU performance test; fileio: File I/O test; memory: Memory speed test; mutex: Mutex performance test

  8. List of performance analysis tools - Wikipedia

    en.wikipedia.org/wiki/List_of_performance...

    Arm MAP, a performance profiler supporting Linux platforms.; AppDynamics, an application performance management solution [buzzword] for C/C++ applications via SDK.; AQtime Pro, a performance profiler and memory allocation debugger that can be integrated into Microsoft Visual Studio, and Embarcadero RAD Studio, or can run as a stand-alone application.

  9. Benchmark (computing) - Wikipedia

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

    Benchmark (computing) A graphical demo running as a benchmark of the OGRE engine. 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. [1]