What is left boundary and right boundary in LoadRunner?

Left Boundary:- This is where we tell LoadRunner how to find the dynamic value that we are looking for. In the Left Boundary we specify the text that will appear to the left of the changing value. Right Boundary:- This is where we tell LoadRunner how to identify the end of the dynamic value we are looking for.

How do you use correlation rules in LoadRunner?

To use the autocorrelation feature of LoadRunner, you have to enable ‘Automatically apply correlation rules’ option which is available at: Recording Options -> Correlations -> Configuration -> Scan for correlations applying -> Rule Scan -> Automatically correlate values found.

What is correlation in LoadRunner with example?

LoadRunner Scripting. ‘Correlation’ term refers to the handling of dynamic values coming from the server. These dynamic values are the unique values which are generated by the server for security purpose like the session ID, authorization token etc.

How do you handle dynamic boundaries in correlation?

ACHP9=Val; You can capture the desired value by putting the following correlation function in place, using the /DIG text flag in combination with LB: web_reg_save_param(“DynamicCapture”, “LB/DIG=ACHP#=”, “RB=;”, LAST);

What is the difference between web_reg_save_param and Web_reg_save_param_ex?

‘web_reg_save_param_ex’ has wildcard option with ‘Content Type’ and ‘Request URL’ in the ‘Filters’ section whereas ‘web_reg_save_param’ has wildcard character or digit option in LB and RB attributes.

What is Little’s Law in performance testing?

Little’s Law in Performance Testing Term: The number of users (U) active on an application is equal to the rate of transactions (T) sent by the users multiplied by the average response time (R). So, the formula becomes: U = T * R.

How do you write correlation in LoadRunner?

Steps to auto-correlate a script:

  1. Record a script.
  2. Replay script.
  3. Identify the values to be correlated.
  4. Select the values and click the auto-correlate button.
  5. Verify the script by running again. A successful run means successful correlation.

How do you correlate dynamic values in loadrunner?

Steps in VUser Comparison method of Correlation can be split as below:

  1. Identify Dynamic values that need to be correlated.
  2. Find Servers response containing the Dynamic value.
  3. Capture the Dynamic value in a parameter.
  4. Replace every occurrence of the Dynamic value with the parameter.
  5. Verify Changes.

How do you use Little’s law?

As I’ve already mentioned, the Little’s law formula is incredibly simple:

  1. L = A x W.
  2. Number of items in the system = (the rate items enter and leave the system) x (the average amount of time items spend in the system)
  3. W = L / A.