Hi folks,
some thoughts along the line
+) Canoo WebTest is not a load testing tool - at the end of the day it
does do too much to produce high load easily
+) load testing tools are not functional test tools because it would
make them slow - and don't forget the reporting part of load testing tools
+) I do agree that there is some overlap but you are looking at two
different type of tools.
So these are things I do
+) create a Canoo WebTest covering most of the application
+) write a simple JMeter test to capture the the common use cases with
minimal verification
+) fine tune the JMeter test to create realistic load (this is the hard
part - creating test data, ensure that the tests executed reflect the
current/anticipated user behaviour - this sometimes involves creating
millions of database records and analyzing gigs of access logs)
+) run the JMeter tests in parallel to the Canoo webtests
So i can gather my performance data and still be sure that the
functional tests pass when running high load (the maven plugins have a
"loop" command to execute the webtest until the first problem is
encountered). At the end of the day I try to combine the sweet spots of
a functional and load test tool ...
Cheers,
Siegfried Goeschl
Sergio Bossa wrote:
Hi guys,
I'm an happy WebTest user, and now I'd like to turn some tests I've
written into load tests.
Putting it simple, I just need to execute a whole webtest (but even a
group of steps would be ok) under concurrent load, by specifying the
number of simulated users (that is, concurrent executions), a ramp-up
period and optionally a schedule.
I've tried to write some custom steps, but there seems to be
synchronization problems, because WebTest APIs do not seem to be
designed for working in a concurrent environment.
So, I'd like to have some suggestions by the WebTest developers about
how to implement such a feature.
Currently, the main problem seems to be that the WebtestTask Context
and the way it's used are not thread safe.
Obviously, if I'll implement that successfully, I'll contribute it
back to the WebTest community!
Thanks,
Cheers,
Sergio B.
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