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Timers in Apache JMeter
NAVEENKUMAR NAMACHIVAYAM
Founder – QAInsights.com
http://QAInsights.com
What is Timers?
• By default, Jmeter doesn’t pause the requests while sending.
• In real time, users spend time while browsing i.e. during check out, before clicking on Submit
etc.
• It is best practice to include some delay between requests.
• Timers in Jmeter induces delay in sending samplers.
• There are different types of Timers in Jmeter:
• Constant Timer
• Gaussian Random Timer
• Uniform Random Timer
• Constant Throughput Timer
• Synchronizing Timer
• BeanShell Timer
• BSF Timer
• JSR223 Timer
• Poisson Random Timer
Constant Timer
• To induce each thread pause for the same amount of time between requests, use Constant timer.
• Below Constant Timer induces 3 seconds delay between
Gaussian Random Timer
• This timer pauses each thread request for a random amount of time, with most of the time
intervals occurring near a particular value.
• Gaussian means with most of the time intervals ocurring near a particular value i.e. constant
interval & varying between constant interval + deviation.
Uniform Random Timer
• This timer pauses each thread request for a random amount of time, with each time interval
having the same probability of occurring.
• The total delay is the sum of the random value and the offset value (Number of milliseconds to
pause in addition to the random delay.)
Constant Throughput Timer
• This timer introduces variable pauses, calculated to keep the total throughput (in terms of
samples per minute) as close as possible to a give figure.
Synchronizing Timer
• The purpose of the SyncTimer is to block threads until X number of threads have been blocked,
and then they are all released at once.
• It is similar to Rendezvous Point in LoadRunner.
• It will create large load at various points in Jmeter plan.
Poisson Random Timer
• This timer pauses each thread request for a random amount of time, with most of the time
intervals occurring near a particular value.
• The total delay is the sum of the Poisson distributed value, and the offset value.
Thank you
Please visit http://qainsights.com/services for more training programs.

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Timers in Apache JMeter

  • 1. Timers in Apache JMeter NAVEENKUMAR NAMACHIVAYAM Founder – QAInsights.com http://QAInsights.com
  • 2. What is Timers? • By default, Jmeter doesn’t pause the requests while sending. • In real time, users spend time while browsing i.e. during check out, before clicking on Submit etc. • It is best practice to include some delay between requests. • Timers in Jmeter induces delay in sending samplers. • There are different types of Timers in Jmeter: • Constant Timer • Gaussian Random Timer • Uniform Random Timer • Constant Throughput Timer • Synchronizing Timer • BeanShell Timer • BSF Timer • JSR223 Timer • Poisson Random Timer
  • 3. Constant Timer • To induce each thread pause for the same amount of time between requests, use Constant timer. • Below Constant Timer induces 3 seconds delay between
  • 4. Gaussian Random Timer • This timer pauses each thread request for a random amount of time, with most of the time intervals occurring near a particular value. • Gaussian means with most of the time intervals ocurring near a particular value i.e. constant interval & varying between constant interval + deviation.
  • 5. Uniform Random Timer • This timer pauses each thread request for a random amount of time, with each time interval having the same probability of occurring. • The total delay is the sum of the random value and the offset value (Number of milliseconds to pause in addition to the random delay.)
  • 6. Constant Throughput Timer • This timer introduces variable pauses, calculated to keep the total throughput (in terms of samples per minute) as close as possible to a give figure.
  • 7. Synchronizing Timer • The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once. • It is similar to Rendezvous Point in LoadRunner. • It will create large load at various points in Jmeter plan.
  • 8. Poisson Random Timer • This timer pauses each thread request for a random amount of time, with most of the time intervals occurring near a particular value. • The total delay is the sum of the Poisson distributed value, and the offset value.
  • 9. Thank you Please visit http://qainsights.com/services for more training programs.