[Building Sakai] [Deploying Sakai] Load Testing CLE

[JUAN JOSé MEROñO SáNCHEZ]

Hi !!

https://confluence.sakaiproject.org/display/QA/CLE+Load+Test+Framework

     This JMeter framework allows you to perform 2 different tests:

         Random test: The test case browses some of the user's 
sites/pages randomly in each loop.
         Browse test: The test case browses all the user's sites/pages 
in each loop.

     You can configure the test case to control the number of users, 
loop counts, etc...
     In the trunk version I've recently added CAS load testing due to 
Jeffrey Miller's work (he's using this framework for his load tests).

Thanks !!

El 01/11/2013 22:56, Warwick Chapman escribió:
> Thanks Matthew.  I have a 'class' of 250 logging in for the sole 
> purpose of completing two MCQ's (30 mins) and one essay question 1 hour.
>
> Speaking of which, last weekend we ran this, also for about 250 
> people, we had a lot of issues with people submitting their essays 
> after 1 hour of typing them... any suggestions how to improve that?
>
> -- Warwick Bruce Chapman | +27 83 7797 094 | http://warwickchapman.com
>
>
> On Fri, Nov 1, 2013 at 11:51 PM, Matthew Jones <matthew at longsight.com 
> <mailto:matthew at longsight.com>> wrote:
>
>     No, those aren't the same tests. You aren't going to find any
>     tests that I know of that are going to provide you with any
>     accurate real world simulations of a Sakai instance. There are
>     some load tests out there that perform simple tests with
>     jmeter/grinder that Chris mentioned to see how much load the
>     portal or a few tools can take as far as read on their first page
>     is concerned with X number of users, perhaps this is enough, but
>     will still take some effort to stand-up.
>
>     I tried writing some things on neustar/browsermob a few months ago
>     and wasn't very successful, mostly because of all the frames Sakai
>     has and some security protection implemented on form posting that
>     you'd have to account for. It didn't make recorded scripts very
>     useful. They all had to be hand modified/written and it was
>     producing unreliable results (sometimes running and sometimes
>     failing on the same script). Starting from the /pda portal would
>     have been a good idea. Maybe whatever bug I was having is better
>     now, but it was frustrating for some reason.
>
>     Most of the real load related issues you'll run into are the hard
>     to predict edge cases rather than typical everyday usage. The
>     class with 100 students and everyone trying to take an exam with
>     some specific set of publish options and questions at the same
>     time or everyone logging in to view their grades.
>
>
>
>     On Fri, Nov 1, 2013 at 5:08 PM, Chris Kretler <ckretler at umich.edu
>     <mailto:ckretler at umich.edu>> wrote:
>
>         Hi Warwick,
>
>         There have been a number of efforts to openly load test
>         sakai.  Some of them used The Grinder:
>
>         https://confluence.sakaiproject.org/display/PERF/Community+Performance+Testing+Resources
>
>         https://source.sakaiproject.org/contrib/sakaigrinder/trunk/
>
>         Others have used jmeter:
>
>         https://confluence.sakaiproject.org/display/QA/Custom+Test+in+10+Minutes
>
>         I haven't touched the grinder scripts since 2009, so they
>         would likely require updating before running.
>
>         You could also look into leveraging browsermob to execute
>         Selenium scripts at large scale:
>
>         http://www.neustar.biz/enterprise/web-performance/what-is-load-testing#.UnQUxBBGYfQ
>
>         This does cost money, but the selenium scripts are probably
>         the easiest to create, assuming they need to be created from
>         scratch.
>
>         Regards,
>         Chris
>
>
>
>
>         On Fri, Nov 1, 2013 at 3:15 PM, Warwick Chapman
>         <warwickchapman at gmail.com <mailto:warwickchapman at gmail.com>>
>         wrote:
>
>             Howdy
>
>             I've searched and only found information relating to load
>             testing Sakai 3.  Are there some scripts for load testing
>             Sakai 2?
>
>             I want to run some heavy load tests tomorrow to help me
>             tune my AppServers for D-Day on Sunday - is this possible?
>
>             Thanks very much.
>
>             -- Warwick Bruce Chapman | +27 83 7797 094
>             <tel:%2B27%2083%207797%20094> | http://warwickchapman.com
>
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