On 11/01/2009, GeeTee <guns_n_mai...@yahoo.co.in> wrote: > > Hi everyone, > > We wanted to load test our online services using JMeter but were unable to > load test for heavy loads due to JMeter crashes with "swap space" error. I
What is the exact Java error message? AFAIK,"swap space" is an OS error rather than a JVM error. > had a look at other such threads over here and we have already tried out > those suggestions with no success (e.g. setting heap correctly in > jmeter.bat) > > I will give you some insight into out online application. It is actually a > hybrid application, i.e. it is an online application embedded in a desktop > client. It is basically a set of Servlets and JSPs and uses a custom "XML > over HTTP" protocol for communication (please note that we do not use SOAP). > Using these services a user can upload videos and stills to different > websites (some of our own and some third-party). We have faced 2 issues that > seem to be related to each other. > > PROBLEM1: > We had been asked to test for total 200-800 simultaneous (i.e. ramp up = 1 > sec) users. Ramp-up should not be set as low as this or JMeter may have problems starting. > After reading a few documents we decided on running 50-75 > threads from a single machine and have a central controller > (jmeter-server.bat method). We were unsuccessful in our attempts. For > example, at one instance we tried to run 35 threads from 2 machines (total > 70 threads only) controlled by a JMeter server. We received 50-60% errors. What errors are these? > Then we ran 70 threads from 1 machine. Result - 0% error. Since the service > was same in both the cases, it seems to be a problem related to JMeter. Even > with 25 users per system from 2 systems, the problem exists. > > Machine config: Pentium Dual Core machines 2.8 GHz, 3 GB RAM, 320 GB Hard > Disc, 10 GB Virtual Memory, Win XP Professional SP2. The systems had no > other softwares installed. JMeter version was 2.3.1 (we also tried 2.3.2 but > observed the same results) > > PROBLEM2: > Due to Problem1, we decided that we will run the scripts from 8-10 separate > systems by manually triggering them. And would later collate the response > timings from each system. We wanted to upload files (present on hard disc) > to the websites for which the service had been written. File size varied > from 4MB to 60MB. Using file size = 4MB, I was able to run 100 threads from > 1 system without problem. But with file size = 30MB or more, even 10 threads > would cause JMeter to crash frequently. On Vista, the situation was slightly > better but still I could not go beyond 20 users for 30 MB files. As such we > have not been able to load test for heavy files. Which Http Sampler are you using? > Machine Config: Same as that for Problem1 > > Sorry for such a lengthy email. I wanted to provide all the information that > I had with me. > > Thanks, > Gaurav Tripathi > > -- > View this message in context: > http://www.nabble.com/Jmeter-crashes-with-%22swap-space%22-error-for-us-tp21402014p21402014.html > Sent from the JMeter - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org > For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org
