timers

Timers are used to pause the thread for a given amount of time. The goal is to emulate either a user think time or any other time related aspect of the test script.

Note

Timers apply to all samplers in their scope.

Note

Note that timers are processed before each sampler in the scope in which they are found; if there are several timers in the same scope, all the timers will be processed before each sampler. Timers are only processed in conjunction with a sampler. A timer which is not in the same scope as a sampler will not be processed at all.

example - 1:

This uniform random timer is used for each HTTP request in this test script

from pymeter.api.config import TestPlan, ThreadGroupSimple
from pymeter.api.samplers import HttpSampler
from pymeter.api.timers import UniformRandomTimer

timer = UniformRandomTimer(2000, 5000)
http_sampler = HttpSampler("Echo", "https://postman-echo.com/get?var=1", timer)
thread_group = ThreadGroupSimple(1, 1, http_sampler)
test_plan = TestPlan(thread_group)
stats = test_plan.run()

example - 2:

This uniform random timer is used for the entire thread group

from pymeter.api.config import TestPlan, ThreadGroupSimple
from pymeter.api.samplers import HttpSampler
from pymeter.api.timers import UniformRandomTimer

timer = UniformRandomTimer(2000, 5000)
http_sampler = HttpSampler("Echo", "https://postman-echo.com/get?var=1")
thread_group = ThreadGroupSimple(1, 1, http_sampler, timer)
test_plan = TestPlan(thread_group)
stats = test_plan.run()

example - 3:

Constant timer imposes a constant wait time.

from pymeter.api.config import TestPlan, ThreadGroupSimple
from pymeter.api.samplers import HttpSampler
from pymeter.api.timers import ConstantTimer

timer = ConstantTimer(2000)
http_sampler = HttpSampler("Echo", "https://postman-echo.com/get?var=1")
thread_group = ThreadGroupSimple(1, 1, http_sampler, timer)
test_plan = TestPlan(thread_group)
stats = test_plan.run()

class pymeter.api.timers.ConstantTimer(time_milliseconds)

Bases: BaseTimer

Imposes a constant wait time.

Parameters:

time_milliseconds (int) –

class pymeter.api.timers.UniformRandomTimer(bottom_milliseconds, top_milliseconds)

Bases: BaseTimer

Randomizes wait times with uniform distribution

Note

UniformRandomTimer minimum and maximum parameters differ from the ones used by JMeter Uniform Random Timer element, to make it simpler for users with no JMeter background.

Parameters:

• bottom_milliseconds (int) –

• top_milliseconds (int) –