DO NOT REPLY [Bug 48889] New: Wrong response time with mode=Statistical and num_sample_threshold > 1

https://issues.apache.org/bugzilla/show_bug.cgi?id=3D48889

           Summary: Wrong response time with mode=3DStatistical and
                    num_sample_threshold > 1
           Product: JMeter
           Version: 2.3.4
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: Main
        AssignedTo: [email protected]
        ReportedBy: [email protected]


I=E2=80=99ve got a master-slave setup and need to do statistical sampling b=
ecause
otherwise the master dies on OutOfMemory. I use an Aggregate Graph/Report as
recommended. The calculated values for hits/sec reported by the listeners a=
re
wrong.

To analyze the situation use I the following testplan:

-    Threadgroup with 10 threads running for 100 iterations
-    BeanShell Sampler sleeping for 500 millis
-    AggregateGraph/Report


Now the results must be more or like:
-    Hits/sec just below 20 (like 19.6)
-    Average response time approx 500 millis

Local execution delivers this result.

Set num_sample_threshold=3D1 and time_threshold=3D3600 delivers this result.

Set num_sample_threshold=3D100 time_threshold=3D3600 delivers
-    Hits/sec 19.7
-    Average response time 56!

The response time varies with the sample_threshold but always is way to low.
The higher the sample_threshold the higher the delta between real and repor=
ted
response time

--=20
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