Discrepancy between "Summary Report" and "jp@gc Transaction Throughput Over Time"

[Peter K.]

Hi,

I'm running a single HTTP request in sampler in a thread group.

If I look at the numbers in the "Summary Report" listener I get 106.9
per second.

However the "Transaection Throughput Over Time" is showing 570 /
second.

The actual web site is seeing 106.9 HTTP requests per second.

What am I missing about the "Transactions Throughput Over Time" ??

Regards,

Peter K.

[Peter K.]

OK, I found this explanation:

http://code.google.com/p/jmeter-plugins/wiki/TransactionThroughputVsThreads

But if I take the "Response Times vs Threads" and use that data to try
to reproduce the "Transaction Throughput vs Threads" data acquired
during the same run, I do not get the same answer.

Calculating:

NUMBER_OF_THREADS * 1000 / RESPONSE_TIME_IN_MILLISECONDS

gives me a flat curve at about 1800.

The TransactionsThrougputVsThreads data is a straight line peaking at
10,000 at the maximum number of threads.

Pointers and explanations appreciated!

Regards,

Peter K.

[Stef]

Hi,

Do not use "Transaction Throughput Over Time" it has been deprecated
and removed from 0.4.2.
Use Transactions per second instead.

Stef

On Sep 20, 6:13 am, "Peter K." <koots...@gmail.com> wrote:
> OK, I found this explanation:
>

> http://code.google.com/p/jmeter-plugins/wiki/TransactionThroughputVsT...

[Peter K.]

Hi Stef,

Thanks for the pointer, I'll use TPS instead.

However, I would like to understand what the other plots (Throughput
per thread and Throughput over time) are telling me. Based on the
explanation on the wiki, the numbers I am getting don't add up.

I've just tried the TPS in a test run, and that seems to be much
closer to what my hand-calculated transaction rates are.

Regards,

Peter K.

[kir...@gmail.com]

Hi
I have similar problem.
I have Jmeter 2.9 and plugin 1.1.1.
I executed test for ~16h (from command line) and results were stored in file.
script has 4 http request and if you calculate average responce time together it is 0.56 seconds.
script has total 37 seconds worth constant timer(think time)
so total duration of test was 58740 seconds

total amount of request in summary is 62039
so by calculating it is 1.056 transactions per seconds.

I have to use "limit number of points" to get bit more readable graph, because "group timeline values" parameter does not affect graph at all.
so when I look graph in "transaction per second" I see 1-5 transactions per seconds.
if I use aggregated graph in settings graph shows 2-7 tps

so why I get it wrong?
As attachment there is that summary file that I used to load graphs after test.