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Posted to user@jmeter.apache.org by Michael Walters <mw...@csc.com> on 2004/03/17 00:35:21 UTC
Timestamp and Increasing Run Time
I ran a load test and wrote all the data to a file in the "View Results
Tree".
Once I've exited JMeter and then restarted it, how do load this file into
JMeter for future viewing. When I attempt to open the file, I receive an
error:
"Error in TestPlan - see log file".
Specifically, I'm interested in the timestamps (first and last) held in
this file to identify the total run time. If I look at this file through
notepad or xcel I see a number like: timeStamp="1079407847608" How do I
interpret/convert this timestamp? The documentation says "
the default saved data includes a time stamp (the number of milliseconds
since midnight, January 1, 1970 UTC). "
Is it an accurate assessment of total run time in hours to take the
difference between the first and last timestamp and divide by 3,600,000?
The number of hours I'm receiving from this calculation on a single test
(manual stopwatch vs this timestamp method) is about 20% off.
Also, even though the cpu usage on our servers remains well under the max
cpu throughout these tests, as I increase the number of threads, the same
test takes disproportionately longer to complete. 20 threads over 20
seconds runs approximately 140% longer than 5 threads over 5 seconds. Is
this increasing time due to the limits of my desktop cpu?
Thanks in advance,
Mike
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Re: Timestamp and Increasing Run Time
Posted by Michael Stover <ms...@apache.org>.
Loading test *result* log files is different than loading test files.
You load the result log files directly into a particular visualizer.
So, let's say you saved the reesults via "View Results Tree", and now
want a graphical view of those results. Create a Graph Visualizer and
use its "Browse" button to find the file and load it up. All the data
points should get plotted in the graph.
-Mike
On Tue, 2004-03-16 at 18:35, Michael Walters wrote:
> I ran a load test and wrote all the data to a file in the "View Results
> Tree".
>
> Once I've exited JMeter and then restarted it, how do load this file into
> JMeter for future viewing. When I attempt to open the file, I receive an
> error:
> "Error in TestPlan - see log file".
>
> Specifically, I'm interested in the timestamps (first and last) held in
> this file to identify the total run time. If I look at this file through
> notepad or xcel I see a number like: timeStamp="1079407847608" How do I
> interpret/convert this timestamp? The documentation says "
>
> the default saved data includes a time stamp (the number of milliseconds
> since midnight, January 1, 1970 UTC). "
> Is it an accurate assessment of total run time in hours to take the
> difference between the first and last timestamp and divide by 3,600,000?
> The number of hours I'm receiving from this calculation on a single test
> (manual stopwatch vs this timestamp method) is about 20% off.
>
> Also, even though the cpu usage on our servers remains well under the max
> cpu throughout these tests, as I increase the number of threads, the same
> test takes disproportionately longer to complete. 20 threads over 20
> seconds runs approximately 140% longer than 5 threads over 5 seconds. Is
> this increasing time due to the limits of my desktop cpu?
>
>
> Thanks in advance,
>
> Mike
>
>
>
> ----------------------------------------------------------------------------------------
>
> This is a PRIVATE message. If you are not the intended recipient, please
> delete without copying and kindly advise us by e-mail of the mistake in
> delivery. NOTE: Regardless of content, this e-mail shall not operate to
> bind CSC to any order or other contract unless pursuant to explicit written
> agreement or government initiative expressly permitting the use of e-mail
> for such purpose.
> ----------------------------------------------------------------------------------------
>
>
>
>
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--
Michael Stover <ms...@apache.org>
Apache Software Foundation
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