一個簡單而強大的負載生成器：ponos

Ponos是一個簡單但功能強大的Erlang應用，用于生成頻率可配置的負載。它的設計是輕量級的，簡單的使用，并要求最低配置。

Quick Start Guide

$> git clone https://github.com/klarna/ponos.git
$> cd ponos
$> make
$> erl -pa ebin -s ponos
1> Args = [ {name, unique_name_of_type_atom}
1>        , {task, fun() -> ok end}
1>        , {load_spec, ponos_load_specs:make_constant(10.0)}
1>        ].
2> ponos:add_load_generators([Args]).
3> ponos:init_load_generators().
4> application:stop(ponos).

負載生成器Load Generators

一個負載生成器只有三個部分：

• Name
  • A unique identifier (of type atom()) used to reference the load generator.
• Task
  • A callback function of arity 0; the work to be performed in accordance with LoadSpec.
• LoadSpec
  • The load specification defines the characteristic of the load. It is a function that maps time to intensity: fun(T) -> I where T is passed time in milliseconds and I is the intensity expressed as calls per second. The user may define its own specification, but ponos provides typical load patterns such as constant load, bursts, staircase, and sawtooth. Seeponos_load_specs for a full list of load specifications.

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